NPPES file of Aug 9, 2026

James David Katz, M.D.

Rheumatology Physician · Washington, DC

James David Katz, M.D. is a rheumatology physician with a practice address in Washington, District of Columbia, and NPI 1013086214, issued on Nov 6, 2006. Check the license (District of Columbia MD 30953, as entered in NPPES) on the District of Columbia Board of Medicine; the federal record below is the public data PlainDoctor holds for this provider.

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

NPPES recordNPPES file of Aug 9, 2026
1013086214
Name
James David Katz
Credential
M.D.
Primary taxonomy
Rheumatology Physician 207RR0500X
License number
MD 30953 DC
Self-reported in NPPES; status is on the state search
Practice location
2150 Pennsylvania Ave NW, Washington, DC 20037
Phone
(202) 741-2222
Enumerated
Nov 6, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(202) 741-3396
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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8 nearest rheumatology physician records → All 57 in District of Columbia → Look up another NPI →

Also registered at 2150 Pennsylvania Ave NW

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

  1. Ahmad AalamStudent in an Organized Health Care Education/Training Program1851786909
  2. Nawaf Abaalkhail, MDCritical Care Medicine (Internal Medicine) Physician1104246958
  3. Theophilus Abah, MDAnesthesiology Physician1245810696
  4. Yoosif Abdalla, MDNephrology Physician1679851760
  5. Rim Abdallah, M.D.Student in an Organized Health Care Education/Training Program1962896886
  6. Rami AbdulbakiAnatomic Pathology & Clinical Pathology Physician1851950109

Verify James David Katz in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersDistrict of Columbia Board of Medicine
    Search for license MD 30953    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 District of Columbia 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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James David Katz among 57 rheumatology physician records in District of Columbia

James David Katz, M.D. is one of 57 rheumatology physician records with a practice address in District of Columbia. 68% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 12% of them.

  • NPI issued2006 · 12% of these records are older, 60% newer
  • In a Medicare fileNo · 68% of these records are
  • In the CMS Doctors and Clinicians fileNo · 51% of these records are
  • Record last updated2007 · 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 District of Columbia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Rheumatology Physician providers in District of Columbia

There are 57 rheumatology physician records in District of Columbia. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 57 in District of Columbia → Every provider in Washington → Rheumatology Physician nationwide →

The 8 rheumatology physician records with the nearest ZIP codes

  1. Gelareh Atefi, MDWashington, DC 200371700190956
  2. Saira Bilal, M.D.Washington, DC 200371770899627
  3. Colleen Caldwell, M.D.Washington, DC 200371437682275
  4. Rodolfo Curiel, MDWashington, DC 200371982663878
  5. Joseph Laukaitis, M.D.Washington, DC 200371083726210
  6. Andrea Leonard-SegalWashington, DC 200371235287483
  7. Ndelela Nadine Mbuyi, M.D.Washington, DC 200371467893230
  8. Marta Michalska-SmithWashington, DC 200371568996304

Common questions

What is James David Katz, M.D.'s NPI number?

James David Katz, M.D.'s National Provider Identifier (NPI) is 1013086214, issued on Nov 6, 2006. An NPI identifies a provider in billing; it is not a license.

Where is James David Katz, M.D. located?

The NPPES record lists a practice address at 2150 Pennsylvania Ave NW, Washington, DC, 20037. Phone: (202) 741-2222. Providers update this record themselves, so call before visiting.

How can I verify James David Katz, M.D.'s license?

NPPES lists District of Columbia license number MD 30953, as entered by the provider. Search the District of Columbia Board of Medicine at https://dchealth.dc.gov/bomed. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.