NPPES file of Aug 9, 2026

Neil Nixdorff, MD

Geriatric Medicine (Internal Medicine) Physician · Ann Arbor, MI

Neil Nixdorff, MD is a geriatric medicine (internal medicine) physician with a practice address in Ann Arbor, Michigan, and NPI 1215252549, issued on Mar 30, 2010. Check the license (Michigan 4301508388, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1215252549
Name
Neil Nixdorff
Credential
MD
Primary taxonomy
Geriatric Medicine (Internal Medicine) Physician 207RG0300X
License numbers
4301508388 MI
MD.207223 LA
MED-PHYS-LIC-34400 MT
MD449905 PA
Self-reported in NPPES; status is on the state search
Practice location
4260 Plymouth RD, Ann Arbor, MI 48109
Phone
(734) 764-6831
Enumerated
Mar 30, 2010
Record last updated
Jul 9, 2024
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 4260 Plymouth RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Regina Abney, MSWClinical Social Worker1518009877
  2. Michelle Adgate, MSWClinical Social Worker1942063235
  3. Neil Alexander, MDGeriatric Medicine (Internal Medicine) Physician1760563118
  4. Marjorie Almeda, DOGeriatric Medicine (Internal Medicine) Physician1295740728
  5. James Baker, MDPediatrics Physician1790791952
  6. Sami Barmada, MD, PHDNeurology Physician1144247891

Verify Neil Nixdorff in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
    Search for license 4301508388
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Michigan license search

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99% fewer Medicare Part D claims than the average geriatric medicine (internal medicine) physician in 2024

27 Medicare Part D claims for 11 beneficiaries, against an average of 4,246 among the 3,116 providers of this specialty who prescribed in Part D.

  1. Neil Nixdorff27
  2. Specialty average4,246

Most prescribed

  1. Donepezil Hcl13 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.

Neil Nixdorff among 184 geriatric medicine (internal medicine) physician records in Michigan

Neil Nixdorff, MD is one of 184 geriatric medicine (internal medicine) physician records with a practice address in Michigan. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 75% of them.

  • NPI issued2010 · 75% of these records are older, 21% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileNo · 54% of these records are
  • Record last updated2024 · 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 207RG0300X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Geriatric Medicine (Internal Medicine) Physician providers in Michigan

There are 184 geriatric medicine (internal medicine) physician records in Michigan.

The 8 geriatric medicine (internal medicine) physician records with the nearest ZIP codes

  1. Marjorie Almeda, DOAnn Arbor, MI 481091295740728
  2. Julie Bynum, MDAnn Arbor, MI 481091851333959
  3. Karen Hall, M.D., PH.D.Ann Arbor, MI 481091134214687
  4. Jeffrey Halter, MDAnn Arbor, MI 481091902987357
  5. Robert Hogikyan, M.D.Ann Arbor, MI 481091871686121
  6. Darius Joshi, M.D.Ann Arbor, MI 481091750483061
  7. Tatyana Krivchenya, MDAnn Arbor, MI 481091942239686
  8. Lillian Min, MDAnn Arbor, MI 481091386663219

Common questions

What is Neil Nixdorff, MD's NPI number?

Neil Nixdorff, MD's National Provider Identifier (NPI) is 1215252549, issued on Mar 30, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Neil Nixdorff, MD located?

The NPPES record lists a practice address at 4260 Plymouth RD, Ann Arbor, MI, 48109. Phone: (734) 764-6831. Providers update this record themselves, so call before visiting.

How can I verify Neil Nixdorff, MD's license?

NPPES lists Michigan license number 4301508388, 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 Neil Nixdorff, MD prescribe under Medicare Part D?

In 2024, Neil Nixdorff, MD had 27 Medicare Part D claims for 11 beneficiaries; the average among geriatric medicine (internal medicine) physician prescribers was 4,246. 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.