Dr. Mary C. Cotner, DO
- Part D claims, 2024
- 236
- Hospital affiliations
- 1
- Industry payments
- $563
- Medical group
- 1
- State license
- 1
- Practice address
- 1500 E Medical Center Dr, Ann Arbor, MI 48109
- Practice phone
- Call (734) 936-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
University Hospital
School-Based Health Center · Ann Arbor, Michigan
Find Dr. Cotner's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Mary C. Cotner is an internist in Ann Arbor, Michigan
Dr. Cotner practices at University Hospital in Ann Arbor, Michigan.
Dr. Cotner's NPI, 1134793953, was assigned on May 17, 2021. Dr. Cotner graduated from University of Pikeville, Kentucky College of Osteopathic Med in 2021. Dr. Cotner holds Michigan license 5151015286APP21.
- NPI
- 1134793953NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7214332865
- NPI enumeration date
- May 17, 2021
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (734) 936-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 31
- Medical school graduation
- 2021
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mary C. Cotner practices at University Hospital in Ann Arbor, Michigan
Dr. Cotner's primary practice is University Hospital, at 1500 E Medical Center Dr, Ann Arbor, MI 48109. The practice phone is (734) 936-4000.
- University Hospital1500 E Medical Center Dr, Ann Arbor, MI 48109Phone(734) 936-4000
Source: Dmand AI Affiliation Data
Dr. Mary C. Cotner is affiliated with 3 sites of care and 1 medical group
Dr. Cotner's primary practice is University Hospital in Ann Arbor, Michigan. Dr. Cotner is also affiliated with University Hospital. The medical group on file is University of Michigan Health. Dmand AI also links Dr. Cotner to 1 more group practice or clinic, named with a free account. Dr. Cotner's employer is on file too: a school & student health.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Mary C. Cotner's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Cotner practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| University Hospital | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mary C. Cotner is one of 4,804 internists in Michigan
Internal medicine is Dr. Cotner's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Cotner is licensed in Michigan.
Specialties and state licenses
- Internal medicine, MichiganPrimary
Internists near Dr. Cotner
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Mary C. Cotner's patients have a median age of 58
Across all payers, Dmand AI patient panel data puts Dr. Cotner's median patient age at 58, with 57% women.
Dr. Cotner's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 58
Patient panel by sex, all payers
- Women57%
- Men43%
Source: Dmand AI Patient Panel Data
Dr. Mary C. Cotner wrote 236 Medicare Part D claims in 2024
In 2024, Dr. Cotner wrote 236 Medicare Part D claims for 42 patients. 84% of them were for generic drugs. CMS names the drug for 85 of them, across 4 drugs with 11 or more claims each, at $545 in total drug cost. In 2023, CMS named 121 claims across 5 drugs.
Dr. Cotner's Part D claims by kind of drug, 2024
- Generic198 claims84%
- Brand-name24 claims10%
- Other14 claims6%
Dr. Cotner's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1212024: 8530%
Drugs named by CMS: 4 in 2024, 5 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Mary C. Cotner offers telehealth to Medicare patients
Dr. Cotner accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Cotner as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Mary C. Cotner received $563 in industry payments from 2022 to 2024
CMS Open Payments shows 9 general payments to Dr. Cotner from 5 drug and device companies from 2022 to 2024. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $125.
General payments to Dr. Cotner by program year, 2022 to 2024
Companies that paid Dr. Cotner the most, 2022 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Mary C. Cotner graduated from University of Pikeville, Kentucky College of Osteopathic Med
Dr. Cotner graduated from University of Pikeville, Kentucky College of Osteopathic Med in 2021.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Mary C. Cotner's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Mary C. Cotner
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Mary C. Cotner's NPI number?
Dr. Mary C. Cotner's NPI number is 1134793953. It was assigned on May 17, 2021, and it is active in the NPI Registry.
What kind of doctor is Dr. Mary C. Cotner?
Dr. Mary C. Cotner is an internist in Ann Arbor, Michigan. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Mary C. Cotner practice?
Dr. Cotner practices at 1500 E Medical Center Dr, Ann Arbor, MI 48109. Dr. Cotner's primary practice is University Hospital in Ann Arbor, Michigan. Dmand AI also links Dr. Cotner to 1 group practice or clinic.
What is Dr. Mary C. Cotner's office phone number?
The practice phone on file for Dr. Cotner is (734) 936-4000.
What is Dr. Mary C. Cotner's medical license number?
Dr. Cotner holds Michigan license 5151015286APP21.
Which hospitals is Dr. Mary C. Cotner affiliated with?
Dr. Cotner is affiliated with University Hospital.
What medical group is Dr. Mary C. Cotner part of?
Dr. Cotner is linked to University of Michigan Health.
Does Dr. Mary C. Cotner accept Medicare?
Yes. CMS lists Dr. Cotner as accepting Medicare assignment.
Does Dr. Mary C. Cotner offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Cotner as offering telehealth services.
Where did Dr. Mary C. Cotner go to medical school?
Dr. Cotner graduated from University of Pikeville, Kentucky College of Osteopathic Med in 2021.
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What drugs does Dr. Mary C. Cotner prescribe most?
In 2024 Medicare Part D data, Dr. Cotner's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Metformin HCl.
Has Dr. Mary C. Cotner received payments from drug or device companies?
CMS Open Payments shows $563 in general payments to Dr. Cotner from 5 companies from 2022 to 2024. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. Mary C. Cotner been practicing?
Dr. Cotner graduated from medical school in 2021, 5 years ago.
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