Mary Townsend
Endocrinology, Diabetes & Metabolism Physician · Ann Arbor, MI
Mary Townsend is an endocrinology, diabetes & metabolism physician with a practice address in Ann Arbor, Michigan, and NPI 1891431946, issued on May 11, 2022. Check the license (Michigan 5151015624, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Mary Townsend
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License number
- 5151015624 MI
Self-reported in NPPES; status is on the state search - Practice location
- 1500 E Medical Center Dr, Ann Arbor, MI 48109
- Phone
- (734) 936-4000
- Enumerated
- May 11, 2022
- Record last updated
- Jul 11, 2025
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 270 in Michigan → Look up another NPI →
Also registered at 1500 E Medical Center Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Mary Townsend in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 5151015624Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% fewer Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
194 Medicare Part D claims for 75 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium12 claims
- Lisinopril11 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Mary Townsend among 270 endocrinology, diabetes & metabolism physician records in Michigan
Mary Townsend is one of 270 endocrinology, diabetes & metabolism physician records with a practice address in Michigan. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 99% of them.
- NPI issued2022 · 99% of these records are older, under 1% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileNo · 72% of these records are
- Record last updated2025 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Endocrinology, Diabetes & Metabolism Physician providers in Michigan
There are 270 endocrinology, diabetes & metabolism physician records in Michigan.
All 270 in Michigan → Every provider in Ann Arbor → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- Ariel Barkan, MDAnn Arbor, MI 481091891877320
- Gary Hammer, MDAnn Arbor, MI 481091871676791
- William Herman, MDAnn Arbor, MI 481091316020233
- Shafaq Khairi, M.D.Ann Arbor, MI 481091225284334
- Ronald Koenig, MDAnn Arbor, MI 481091982787818
- Julia MeirelesAnn Arbor, MI 481091760052773
- Richard Mortensen, MDAnn Arbor, MI 481091194962530
- Joanna Spencer-Segal, MDAnn Arbor, MI 481091609161611
Common questions
What is Mary Townsend's NPI number?
Mary Townsend's National Provider Identifier (NPI) is 1891431946, issued on May 11, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Mary Townsend located?
The NPPES record lists a practice address at 1500 E Medical Center Dr, Ann Arbor, MI, 48109. Phone: (734) 936-4000. Providers update this record themselves, so call before visiting.
How can I verify Mary Townsend's license?
NPPES lists Michigan license number 5151015624, as entered by the provider. Search the Michigan Board of Medicine (LARA) at https://aca-prod.accela.com/MILARA/GeneralProperty/PropertyLookUp.aspx?isLicensee=Y&TabName=APO. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Mary Townsend prescribe under Medicare Part D?
In 2024, Mary Townsend had 194 Medicare Part D claims for 75 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.