About Us

Your Central Ohio Primary Care Physicians Since 1996

Central Ohio Primary Care is the largest physician-owned primary care medical group in the United States. We have over 351 providers and 67 practice locations throughout central Ohio.

COPC was established in 1996 when a group of 33 physicians chose to focus more on the quality of patient care they were providing and less on the administrative paperwork. The result was the creation of an administrative support team that gave doctors more freedom to do what they do best - practice medicine.

COPC has full-service laboratory, complete radiology services, cardiac testing, and hospitalist services. We have first-rate health management programs, including two physical therapy centers, an innovative diabetes management program, and an asthma disease management program. We have two SameDay Centers and a Pediatric Support Center that support our practice's urgent care needs seven days a week.

Our Mission Statement

“To provide the highest quality of primary health care to our patients while maintaining the highest ethical principles.”

COPC Foundation Grant/Sponsorship Request

Run 4 The Health of It

Run 4 The Health of It


Our Mission

Central Ohio Primary Care Physician’s Foundation has a simple mission - to improve the overall physical and emotional health of the underserved of central Ohio. Since inception, we have granted more than $400,000 to local charities in central Ohio, but the problem is large and we need your help to further our mission. Please consider supporting our foundation and the community in which we live.


The Foundation is a donor advised fund of the Columbus Foundation. It is a non-profit organization that was established on July 26, 2007 by the Board of Directors of Central Ohio Primary Care Physicians, Inc., a group of over 240 physicians consisting of internal medicine, pediatric, family practice, infectious disease, physical medicine and endocrinology physicians located at 46 practice sites in Franklin, Union, Delaware and Fairfield counties.


The Foundation will achieve its goals by encouraging and financially supporting nonprofit organizations that further our mission. Our initial grant-making priorities will address the most crucial needs of the underserved such as food, shelter, clothing, and access to prescription drugs.

As our funding increases, we will expand our priorities to include those organizations that are involved in the treatment, prevention, and cure of disease states, and improvement in the overall health of the underserved of central Ohio.

COPC Foundation Achievements

Every year, the COPC Foundation works to help the underserved in our neighborhoods by donating to charities that address critical needs such as food, shelter, prescription medicines, and access to quality health care.

Some of the many past beneficiaries include the American Diabetes Association, the March of Dimes, Faith Mission, LifeCare Alliance and The Driven Foundation.

Our physicians and employees also donate our time and talent to many causes. Please take time to watch a very brief thank you that came from one of our many charities.


Thank you in advance for considering to donate to our Foundation!

Your donation will help further our mission to improve the health of the underserved in central Ohio. To donate, please go to the Columbus Foundation website and type "Central Ohio Primary Care Foundation" for the fund name. No gift is too small! You are also able to donate in memory of or in honor of a special person in your life.

Foundation Advisory Committee

Terrance Castor, M.D., Worthington Internal Medicine

Boyd Curtis, M.D., Suburban Internal Medicine

James Dorado, M.D., Westerville Medical Associates

Bryan Feldman, D.O., Parsons Avenue Medical Center

Justin Krueger, M.D., Marysville Primary Care

Mark Muresan, M.D., Professional Pediatrics of Hilliard

Jonathan Thorne, M.D. (Chairman), Westerville Medical Associates

Contact Us

Administrative Offices/Management Team

655 Africa Road

Westerville, Ohio 43082

Phone: (614) 326-2672

Fax: (614) 326-2685 (Please do not use this fax to send items to physicians. Visit your practice page for these fax numbers. find a doctor)

Accounting and Finance

655 Africa Road

Westerville, Ohio 43082

Phone: (614) 326-2672

Fax: (614) 326-3292

Asthma Education & Disease Management

Phone: (614) 326-3247

COPC Billing Services

655 Africa Road

Westerville, Ohio 43082

Phone: (614) 326-2672, Option 1

Fax: (614) 326-2687

Cardiovascular Services Olentangy

4885 Olentangy River Road

Columbus, Ohio 43214-1953

Phone: (614) 326-2700

Fax: (614) 326-3293

Central Scheduling for Cardiac Testing and Radiology

Phone: (614) 273-0411 (Option 5) or (614) 273-0471

Toll Free: (877) 273-0450

Fax: (614) 273-0520

Human Resources

655 Africa Road

Westerville, Ohio 43082

Phone: (614) 326-2672

Fax: (614) 221-9722

Innovative Diabetes Disease Management

4041 North High Street

Columbus, Ohio 43214

Phone: (614) 447-9495

In-Patient Services, COPC Hospitalists

3555 Olentangy River Road, Suite 1080

Columbus, Ohio 43214-3984

Phone: (614) 268-8164

Fax: 268-8406

Laboratory Services

4885 Olentangy River Road

Columbus, Ohio 43214-1953

Phone: (614) 326-5665, Option 2

Fax: (614) 326-4533

Nutrition Counseling Center

4041 North High Street

Columbus, Ohio 43214

Phone: (614) 447-9495, Option 1

Fax: (614) 447-9163

Outreach Services

4885 Olentangy River Road

Columbus, Ohio 43214-1953

Phone: (614) 326-3281

Physician Referrals

Phone: (614) 326-4646

Physical Therapy

631 Copeland Mill Road, Suite B

Westerville, Ohio 43081-8905

3535 Fishinger Blvd., Suite 120

Hilliard, Ohio 43026

Phone: (614) 392-2812

Fax: (614) 392-2816

Radiology Services Olentangy

4885 Olentangy River Road

Columbus, Ohio 43214-1953

Phone: (614) 451-9229

Fax: (614) 451-0981

Radiology Services Reynoldsburg

6488 East Main Street, Suite 100

Reynoldsburg, Ohio 43068

Phone: (614) 860-8060

Fax: (614) 860-8061

Radiology Services Westerville

291 West Schrock Road

Westerville, Ohio 43081

Phone: (614) 776-5750

Fax: (614) 776-5751

SameDay Care Center Olentangy

4885 Olentangy River Road, Suite 110

Columbus, Ohio 43214-1953

Phone: (614) 268-6555

Fax: (614) 457-5706

SameDay Care Center Westerville

285 W. Schrock Road

Westerville, Ohio 43081

Phone: (614) 392-2771

Fax: (614) 392-2531

How We Are Different And Better

We Care About What's Best For You

In many metropolitan areas, it is difficult to find a physician that is not affiliated with one of the major health systems in their area. At Central Ohio Primary Care, we have chosen to work alongside, not within, a hospital system, because our group of over 325 physicians agrees that this is in the best interest of their patients.

Working with All Specialists in Central Ohio

Your health is your greatest and most important asset, so naturally you want the best health care that is available. Central Ohio has no shortage of state-of-the-art hospital systems, advanced medical care facilities, and specialists for every medical condition. When you choose a COPC physician, you have unrestrained access to them all. Our physicians work with specialists and care providers across all health systems, and we’re always here to help you compare the performance of these specialists, so you can choose the options that are best for you.

Saving You Money

COPC understands how your healthcare choices impact your budget, and we are confident that we can help you save money. You may be surprised to learn that your bill from COPC diagnostic service centers can be less than half the cost of the same procedure offered at other health systems.

Electronic Health Care Records

Even with all of the advances in medicine, healthcare costs are often driven up by outdated systems. Inefficient record keeping can waste valuable time when patients are required to repeat their medical tests and examinations. There is also the risk of missing a crucial piece of information or a prescription duplication that could compromise the quality of medical care.

As a COPC patient, your medical history follows you electronically whenever you seek care at any of the COPC practices and Diagnostic Service Centers. Your record contains your health history, including things such as lab results, cardiac testing results, immunizations and medications. All of this information is updated with each visit and is shared via a secure network with all specialists involved in keeping you healthy. This sharing of records prevents costly duplication of tests and prescriptions, and it helps us oversee your care more efficiently.

Great Education

Central Ohio Primary Care wants you to be an informed patient. We highly encourage you to spend time on our website researching all of our health resource materials. And share our website with your family and friends. COPC cares about what is best for you and all of our central Ohio community.

Management Team

Working behind the scenes for our COPC patients

Over 300,000 patients in the Central Ohio community depend on the physicians of Central Ohio Primary Care. Our COPC Management Team is committed to working hard every day to ensure that every COPC physician has the support staff and the resources they need to provide the highest quality care for their patients.

J. William Wulf, M.D.

J. William Wulf, M.D.


Dr. Wulf graduated from The Medical College of Ohio in 1985 and is board certified in Internal Medicine. In 1996, he became one of the founding members of COPC and was named Corporate Medical Director in 2007.

Dr. Wulf's clinical interests are preventive care, population management and maintaining a continuum of care for our COPC patients. He is married with four daughters and enjoys fishing and hiking.

Michael Ashanin

Michael Ashanin

Chief Operating Officer

Michael Ashanin joined Central Ohio Primary Care Physicians in March of 2003. He was named Chief Operating Officer in 2008. In this role, he provides leadership in the areas of payer contracting, ancillary services, network development, physician recruiting, and practice operations.

Prior to joining Central Ohio Primary Care, he was the Payer Contracting Manager for American Health Network of Indiana and Ohio. Previously, he was the clinic manager for the University of New Mexico Senior Health, Westside, and Sandia Pueblo Health Centers.

Mr. Ashanin holds a master’s degree in Public Administration from the University of New Mexico, and a bachelor’s degree from Butler University. He is a member of the American College of Healthcare Executives and the Medical Group Management Association. He resides in Lewis Center with his wife and two children.

T. Laurence Blosser, M.D.

T. Laurence Blosser, M.D.

Corporate Medical Director for Outpatient Services

Dr. Blosser graduated from The Ohio State University College of Medicine in 1981. He completed a residency in Family Medicine at Riverside Methodist hospital and is Board Certified in Family Medicine. In 2004 he became the COPC Outpatient Medical Director where he focuses on Quality of Care and clinical programs for COPC.

Donald Deep, M.D.

Donald Deep, M.D.

Inpatient Medical Director

Dr. Deep graduated from NEOUCOM in 1994 and completed his residency in Internal Medicine at Riverside Methodist Hospital in 1997. He joined COPC in 1997 and immediately began a career focused on Inpatient Medicine. He helped establish and develop the COPC Hospitalist that is an integral part of COPC. The Hospitalist practice has grown into a group of over 75 providers currently covering 5 sites across Columbus.

Dr. Deep is board certified in Internal Medicine and also has an additional board certification in Focus Practice of Hospital Medicine. He is currently the President of the Medical Staff of Riverside Methodist Hospital and is past Chairman of the Department of Medicine.

Robert L. Stone, M.D.

Robert L. Stone, M.D.

Medical Director CPC+

Dr. Stone is a lifelong native of Worthington where he completed High School in 1985. He then attended Case Western Reserve University where he graduated with honors in Biochemistry and Chemistry. He went to medical school at the Johns Hopkins University School of Medicine graduating in 1993 followed by completion of a residency in Internal Medicine at the University of Michigan in 1996.

The appeal of working in primary care had always been an interest for him largely due to the influence of his mother, Dr. Linda Stone, a well known Family Practice physician in Columbus and after finishing residency Dr. Stone returned to Central Ohio where he enjoyed over 21 years of clinical practice. Most of this time was after joining COPC in 1998 at the Central Ohio Medicine site where he worked with a great group of physicians / partners and staff. During that time he also had the honor of serving on the Board of Directors and Executive Committee for COPC and as the president of COPC from July of 2012 through March of 2017.

He is currently working to advance the efforts of COPC in population health and serves as the Medical Director for Comprehensive Primary Care (CPC+). Dr. Stone lives in Worthington with his wife Jennifer and 2 children. In his spare time he enjoys photography, astronomy, and especially spending time with his kids.

S​cott Reinard

S​cott Reinard

Chief Financial Officer

Scott A. Reinard became the Chief Financial Officer for Central Ohio Primary Care in September of 2007. Prior to that, Scott started with Central Ohio Primary Care as Controller, in April of 2004.

Before joining Central Ohio Primary Care, Scott was the controller of a behavioral health subsidiary of a large Chicago metropolitan health system.

Scott obtained his undergraduate degree in business administration with a concentration in accounting from Loyola University, Chicago. In 2010, Scott was awarded a Master’s degree in Business Administration from the Fisher College of Business from The Ohio State University. In 2011, Scott was also selected as a finalist in the Columbus Business First CFO of The Year award.

Angelo Mazzocco

Angelo Mazzocco

Chief Information Officer

Angelo Mazzocco joined Central Ohio Primary Care Physicians in June of 2014 as Chief Information Officer. In this role, he provides leadership in the areas of information systems, information technology, business continuation, and project management.

Prior to joining Central Ohio Primary Care, he was the President of Pillar Technology Group. Previously, he was the Chief Information Officer at Progressive Medical and the Dispatch Companies.

Judi Hatcher

Judi Hatcher

General Counsel

General Counsel since 1997. Before joining COPC, Judi practiced in her own law firm for five years. Prior to that time she worked for a publicly traded, national HMO for ten years, initially in provider contracting and in government relations. Ultimately, Judi reported to the General Counsel. She did extensive traveling for the company during that time and interacted with various state Departments of Insurance and Health.

After graduating from law school, she worked for the Ohio Department of Insurance in the HMO division. She obtained her Juris Doctorate from Capital University Law School and was awarded the Order of Barristers. She was a member of the National Moot Court Team. Judi has a Bachelor of Arts and Sciences degree from Ohio Northern University with a major in political science. She is licensed to practice law in Ohio and Indiana as well before the United States Supreme Court. She is a member of the American Health Lawyers Association.

Nancy Falk

Nancy Falk

Associate General Counsel

Nancy joined Central Ohio Primary Care in May 2016 as the Associate General Counsel. After working for two national law firms, Nancy worked as the Associate General Counsel and Director of Health Policy at the Ohio Hospital Association and later as the General Counsel at PrimaryOne Health, a federally qualified health center.

Nancy obtained her JD from the University of Michigan Law School and received her BA in English Literature from the University of Michigan where she was part of the Honors Program. Nancy is licensed to practice law in Ohio and admitted to the United States Federal Court for the Southern District of Ohio, the United States Federal Court for the Northern District of Ohio and the Ohio Court of Appeals.

Cathy Rainaldi

Cathy Rainaldi

Director of Human Resources

After college graduation from Kent State University, Cathy started her career at South Side Hospital in Pittsburgh, PA. After relocating to Columbus, Cathy held positions as a Medical Office Manager, Regional Human Resources Coordinator for a Division of Prudential Insurance Co. and a Human Resource Generalist at Doctors North Hospital.

Cathy has been with COPC since its inception and is a member of the Society of Human Resource Management.

Deb Chandler

Deb Chandler

Director of Revenue Cycle

Deb Chandler graduated from Cedarville University with a BA in Education. After teaching school for several years, she began her career in the medical field. She has been a part of COPC since its inception, working as a site manager for two different COPC offices before moving to the Central Business Office.

Deb became a Certified Professional Coder in 2003, and has subsequently earned certifications as an Advanced Coding Specialist in Evaluation and Management Coding, an Advanced Coding Specialist in Family Medicine and Pediatric Coding, and a Certified Compliance Professional. She serves on the National Advisory Board for Evaluation and Management Coding with the Board of Medical Specialty Coding.

Robert Strohl

Robert Strohl

Director of Health Informatics

Robert joined Central Ohio Primary Care in November of 2001 as the Lead IT Administrator. In 2005, Robert became the EHR Project Manager. His primary responsibility was to implement an organization wide conversion from a paper based system to an electronic health record system.

In 2008, Rob became the Director of Health Informatics. Robert’s additional responsibilities included facilitating a strategic healthcare presence at regional, state and national levels for Central Ohio Primary Care. Robert is on the Board of Directors for Central Ohio Health Information Exchange. Additionally, Robert is the Co Chair of the eRx Quality Improvement Committee and the EPCS (Electronic Prescribing of Controlled Substances) Committee with the Ohio Health Information Partnership.

The focus of these committees is to promote electronic prescribing quality and facilitate e-prescription of controlled substances in the State of Ohio. Robert is also involved at the national level with the Office of the National Coordinator for Health IT (ONC) – chairing two committees on Meaningful Use interpretation and education as well as currently serving as chair of the ONC Meaningful Use Community of Practice Advisory Board. Currently Robert is actively involved with the implementation of a new EHR / PM platform for COPCP and facilitating the achievement of Meaningful Use and other quality initiatives for the physicians of Central Ohio Primary Care.

Kathy Fazio

Kathy Fazio

Compliance Officer

Kathy Fazio joined COPC in September 2013, as the Compliance Officer. Kathy has over 30 years of healthcare experience dealing with HIPAA Privacy/Security, Compliance, Health Information Management, Quality/Performance Improvement, and Case Management.

She has held leadership roles at OhioHealth, the Tenet South Florida Health System and Doctors Hospital. Kathy has also served as a Visiting Professor for DeVry University Online and is a frequent guest lecturer in the Health Information Management Program at The Ohio State University. Kathy received a master’s degree in Health Care Administration from Central Michigan University and a bachelor’s degree in Health Information Management from The Ohio State University.

She holds credentials as a registered health information administrator (RHIA) and is certified in healthcare compliance (CHC).

Joseph Pietrusik

Joseph Pietrusik

Director of Finance

Joe Pietrusik joined COPC in May 2013 and serves as the Director of Finance, overseeing both the accounting and revenue cycle areas. Before joining Central Ohio Primary Care, Joe worked 13 years for the OhioHealth System, initially working with physician practices as finance director and then working for 11 years with the system’s home health care agency, serving first as Director of Finance and then as Vice-President of Operations.

Joe obtained his undergraduate degree in accounting from The Ohio State University and is a certified public accountant.

Marianne Hanson

Marianne Hanson

Marketing and Communications Manager

Marianne Hanson became the Marketing and Communications manager for Central Ohio Primary Care in February of 2011. She is past owner of Market Reach Design, a graphic design company she founded in 1993. She worked with companies and individuals with marketing materials while always managing the business side of her company.

Marianne obtained her journalism degree from The University of Wyoming. Her hobbies include golfing, gardening and returning to Wyoming to fly fish with family.

Patient Centered Medical Home (PCMH)

Central Ohio Primary Care is comprised of individual “Patient Centered” medical practices. As a patient of COPC, what will you notice that is different about us?

In 2010 Central Ohio Primary Care began the journey of transforming their practices to a Patient Centered Medical Home model of care. The Patient Centered Medical Home model provides enhanced access to your primary care physician; is patient focused; coordinates and tracks all the care you receive; and is involved in performance reporting and quality improvement. To date, COPC has 24 - Level 3 National Committee for Quality Assurance (NCQA), Patient Centered Medical Home (PCMH) certified primary care practices including Internal Medicine, Family Practice and Pediatrics.

Why has COPC worked to achieve PCMH status?

The PCMH model of care is the gold standard in healthcare today. COPC believes in the core PCMH principles of patient centered teamwork, coordination and management of care, and the measurement and reporting of quality. We want your healthcare experience to be the best it can be whether it is in one of our medical offices, our same day center, our diagnostic imaging center or at a specialist’s office we refer you to.

Our offices will be actively engaging you in your own healthcare. We’ll remind you when you need follow up care or your yearly wellness visit. We will communicate with you in ways that are meaningful and convenient for you, and from time to time we’ll ask you to grade your experience by filling out a patient survey. Transformation involves you, everyone you encounter prior to, during, and after your visit. We are giving you, our patient partner, the opportunity to improve your experience.

Thank you for putting your trust in COPC. We welcome you to schedule your next visit and meet your healthcare team.

Click here for more information about the Patient Centered Medical Home (PCMH).