David A. Fox, MD
Rheumatology Physician · Ann Arbor, MI
David A. Fox, MD is a rheumatology physician with a practice address in Ann Arbor, Michigan, and NPI 1154406767, issued on Oct 25, 2006. Check the license (Michigan 4301048978, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- David A. Fox
- Credential
- MD
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- License number
- 4301048978 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
- Oct 25, 2006
- Record last updated
- Nov 19, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicaid ID
- 1671879 MI
- Entity
- Type 1 · individual
8 nearest rheumatology physician records → All 226 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 David A. Fox in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301048978Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average rheumatology physician in 2024
82 Medicare Part D claims for 42 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims.
Most prescribed
- Prednisone17 claims
- Methotrexate14 claims
- Hydroxychloroquine Sulfate11 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.
David A. Fox among 226 rheumatology physician records in Michigan
David A. Fox, MD is one of 226 rheumatology physician records with a practice address in Michigan. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 9% of them.
- NPI issued2006 · 9% of these records are older, 49% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileNo · 69% of these records are
- Record last updated2019 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RR0500X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Rheumatology Physician providers in Michigan
There are 226 rheumatology physician records in Michigan.
All 226 in Michigan → Every provider in Ann Arbor → Rheumatology Physician nationwide →
The 8 rheumatology physician records with the nearest ZIP codes
- Daniel Clauw, MDAnn Arbor, MI 481091518042126
- Inocencio Cuesta, MDAnn Arbor, MI 481091992746820
- Samardeep Gupta, M.D.Ann Arbor, MI 481091891712253
- Joseph Holoshitz, MDAnn Arbor, MI 481091508941113
- Mariana Kaplan, MDAnn Arbor, MI 481091235214842
- Puja Khanna, MDAnn Arbor, MI 481091396825071
- Timothy Laing, MDAnn Arbor, MI 481091396820908
- Wendy Marder, MDAnn Arbor, MI 481091205911815
Common questions
What is David A. Fox, MD's NPI number?
David A. Fox, MD's National Provider Identifier (NPI) is 1154406767, issued on Oct 25, 2006. An NPI identifies a provider in billing; it is not a license.
Where is David A. Fox, MD 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 David A. Fox, MD's license?
NPPES lists Michigan license number 4301048978, 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 A. Fox, MD prescribe under Medicare Part D?
In 2024, David A. Fox, MD had 82 Medicare Part D claims for 42 beneficiaries; the average among rheumatology physician prescribers was 1,978. 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.