NPPES file of Aug 9, 2026

David Robert Weidendorf, MD

Internal Medicine Physician · Ann Arbor, MI

David Robert Weidendorf, MD is an internal medicine physician with a practice address in Ann Arbor, Michigan, and NPI 1497088876, issued on Sep 16, 2009. Check the license (Michigan 4301095466, 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
1497088876
Name
David Robert Weidendorf
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
4301095466 MI
Self-reported in NPPES; status is on the state search
Practice location
2200 Green RD Ste B, Ann Arbor, MI 48105
Phone
(734) 994-7446
Enumerated
Sep 16, 2009
Record last updated
Nov 8, 2023
Fax
(734) 623-8590
Medicare enrollment
Enrolled (PECOS I20120824000796); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 2200 Green RD Ste B

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

  1. Mariam Asadullah, MDFamily Medicine Physician1851039267
  2. Blanka Girard, MDInternal Medicine Physician1295730745

Verify David Robert Weidendorf 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 4301095466
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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19% fewer Medicare Part D claims than the average internal medicine physician in 2024

2,570 Medicare Part D claims for 655 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 34 claims were for opioids.

  1. David Weidendorf2,570
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium171 claims
  2. Lisinopril141 claims
  3. Losartan Potassium105 claims
  4. Amlodipine Besylate99 claims
  5. Amoxicillin89 claims
  6. Gabapentin63 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.

Bills Medicare through 2 group practices

  1. Partners IN Internal Medicine PLLCAnn Arbor, MI
  2. Powerback Rehabilitation LLCJackson, MI

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

David Robert Weidendorf among 5,735 internal medicine physician records in Michigan

David Robert Weidendorf, MD is one of 5,735 internal medicine physician records with a practice address in Michigan. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 51% of them.

  • NPI issued2009 · 51% of these records are older, 46% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated2008 · median 2006 among the 3,564 with a school on file
  • Record last updated2023 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

479 internal medicine physician records list a practice address in Ann Arbor

They are 479 of the 15,616 NPPES records with a practice address in Ann Arbor, and 5,735 internal medicine physician records in Michigan.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Karl Brenner, M.D.Ann Arbor, MI 481051033186770
  2. Catherine Foster, MDAnn Arbor, MI 481051710966486
  3. Blanka Girard, MDAnn Arbor, MI 481051295730745
  4. Martha Gray, MDAnn Arbor, MI 481051801892294
  5. Sara Hashemian, MDAnn Arbor, MI 481051427054006
  6. Jyotsna Kapoor, M.D.Ann Arbor, MI 481051750359527
  7. Peter Paul, MDAnn Arbor, MI 481051407853617
  8. Edward Post, MDAnn Arbor, MI 481051851366306

Common questions

What is David Robert Weidendorf, MD's NPI number?

David Robert Weidendorf, MD's National Provider Identifier (NPI) is 1497088876, issued on Sep 16, 2009. An NPI identifies a provider in billing; it is not a license.

Where is David Robert Weidendorf, MD located?

The NPPES record lists a practice address at 2200 Green RD Ste B, Ann Arbor, MI, 48105. Phone: (734) 994-7446. Providers update this record themselves, so call before visiting.

How can I verify David Robert Weidendorf, MD's license?

NPPES lists Michigan license number 4301095466, 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 David Robert Weidendorf, MD prescribe under Medicare Part D?

In 2024, David Robert Weidendorf, MD had 2,570 Medicare Part D claims for 655 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.