David Aaron Kellner
Rheumatology Physician · Los Angeles, CA
David Aaron Kellner is a rheumatology physician with a practice address in Los Angeles, California, and NPI 1902433840, issued on Mar 23, 2020. Check the license (California A186975, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- David Aaron Kellner
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- License number
- A186975 CA
Self-reported in NPPES; status is on the state search - Practice location
- 200 Ucla Medical Plz Ste 365B, Los Angeles, CA 90095
- Phone
- (310) 825-2448
- Enumerated
- Mar 23, 2020
- Record last updated
- Jun 30, 2026
- Medicare enrollment
- Enrolled (PECOS I20260529000418); may accept Medicare assignment
- Medical or professional school
- University Of California, Geffen School Of Medicine, 2020
- Entity
- Type 1 · individual
8 nearest rheumatology physician records → All 926 in California → Look up another NPI →
Also registered at 200 Ucla Medical Plz Ste 365B
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Igor Barjaktarevic, M.D., M.SCPulmonary Disease Physician1932345105
- Adam Brownstein, MDPulmonary Disease Physician1164910949
- Jessica ChannickPulmonary Disease Physician1053816892
Verify David Aaron Kellner in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A186975Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average rheumatology physician in 2024
17 Medicare Part D claims, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D.
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 Aaron Kellner among 926 rheumatology physician records in California
David Aaron Kellner is one of 926 rheumatology physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 95% of them.
- NPI issued2020 · 95% of these records are older, 2% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2020 · median 2003 among the 641 with a school on file
- Record last updated2026 · 62% 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 California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Rheumatology Physician providers in California
There are 926 rheumatology physician records in California.
All 926 in California → Every provider in Los Angeles → Rheumatology Physician nationwide →
The 8 rheumatology physician records with the nearest ZIP codes
- Ernest Brahn, MDLos Angeles, CA 900951528092079
- Ken Bulpitt, MDLos Angeles, CA 900951619902764
- Philip Clements, MDLos Angeles, CA 900951811913924
- Meika Fang, MDLos Angeles, CA 900951801821095
- John Fitzgerald, MDLos Angeles, CA 900951841215027
- Alan Gorn, MDLos Angeles, CA 900951952321176
- Jennifer Grossman, MDLos Angeles, CA 900951548289820
- Bevra Hahn, MDLos Angeles, CA 900951992723936
Common questions
What is David Aaron Kellner's NPI number?
David Aaron Kellner's National Provider Identifier (NPI) is 1902433840, issued on Mar 23, 2020. An NPI identifies a provider in billing; it is not a license.
Where is David Aaron Kellner located?
The NPPES record lists a practice address at 200 Ucla Medical Plz Ste 365B, Los Angeles, CA, 90095. Phone: (310) 825-2448. Providers update this record themselves, so call before visiting.
How can I verify David Aaron Kellner's license?
NPPES lists California license number A186975, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does David Aaron Kellner prescribe under Medicare Part D?
In 2024, David Aaron Kellner had 17 Medicare Part D claims; 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.