Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Donald Owen Mack, MD

Individual provider Family Medicine Physician · NPI 1316980311

Dr. Donald Owen Mack, MD is registered under Family Practice in Columbus, Ohio. Graduated from Ohio State University College of Medicine in 1984, 42 years ago. Practices with Osu General Internal Medicine LLC, a 266-clinician group and accepts Medicare assignment. Licensed in Ohio.

Years since qualifying
42
Trained at
Ohio State University College of Medicine
Licensed in
OH
In the registry since
2006
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

2231 N High St
Columbus, OH 43201-1115
Phone: (614) 293-2700
Fax: (614) 293-2720
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 35.052196 (OH)
Geriatric Medicine (Family Medicine) Physician Taxonomy 207QG0300X · Licence 35.052196 (OH)
Hospice and Palliative Medicine (Internal Medicine) Physician Taxonomy 207RH0002X · Licence 35.052196 (OH)

Record details

NPI number1316980311
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 14, 2006
Last updated in NPPESMarch 17, 2026
Certification dateMarch 17, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyFAMILY PRACTICE
Medical schoolOHIO STATE UNIVERSITY COLLEGE OF MEDICINE
Graduated 1984 (42 years in practice)
Group practice Osu General Internal Medicine Llc — 266 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients218
Services billed 2,964 a service is one billed item, such as a visit, a test or a procedure
Average patient age78

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $24 1 payment · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

  • Ohio State University State Health System Hospital · Columbus, OH · listed as Ohio State University
  • Riverside Methodist Hospital Hospital · Columbus, OH
  • Ohio Living Westminster-Thurber Nursing home · Columbus, OH · listed as Ohio Living Communities
  • Ohio Living Home Health Greater Columbus Home health agency · Westerville, OH
  • Ohiohealth Home Health With Compassus Home health agency · Dublin, OH
  • The Ohio State University Wexner Medical Center Ho Home health agency · Hilliard, OH
  • Ohio Living Hospice Greater Columbus Hospice · Westerville, OH
  • Laurels Of Norworth The Nursing home · Worthington, OH

Also affiliated with 1 hospital, which CMS identifies by certification number only.

Colleagues at Osu General Internal Medicine LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 266 clinicians in the practice; 12 are shown here.

Other providers in Columbus