NPPES file of Aug 9, 2026

Robert J. Brown, M.D.

Pediatric Hematology & Oncology Physician · Los Angeles, CA

Robert J. Brown, M.D. is a pediatric hematology & oncology physician with a practice address in Los Angeles, California, and NPI 1174712962, issued on Oct 17, 2007. Check the license (California A 108632, as entered in NPPES) on the Medical Board of California; 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
1174712962
Name
Robert J. Brown
Credential
M.D.
Primary taxonomy
Pediatric Hematology & Oncology Physician 2080P0207X
License number
A 108632 CA
Self-reported in NPPES; status is on the state search
Practice location
4650 Sunset Boulevard, Los Angeles, CA 90027
Phone
(323) 361-4460
Enumerated
Oct 17, 2007
Record last updated
Nov 20, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(323) 361-8165
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 pediatric hematology & oncology physician records → All 417 in California → Look up another NPI →

Also registered at 4650 Sunset Boulevard

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

  1. Anna Ganster, M.D.Neonatal-Perinatal Medicine Physician1861657082
  2. Alan Hermanson, FAMILY NURSE PRACTITFamily Nurse Practitioner1659697043
  3. Dianne Ito, PNPPediatric Nurse Practitioner1467778696
  4. Melanie Moya, FAMILY NURSE PRACTITFamily Nurse Practitioner1932427796
  5. Tena Rosser, M.D.Neurology with Special Qualifications in Child Neurology Physician1285720292
  6. Maureen Saint Georges Chaumet, M.D.Pediatrics Physician1336526920

Verify Robert J. Brown in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A 108632    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 California license search

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Robert J. Brown among 417 pediatric hematology & oncology physician records in California

Robert J. Brown, M.D. is one of 417 pediatric hematology & oncology physician records with a practice address in California. 53% 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 2007, is newer than 35% of them.

  • NPI issued2007 · 35% of these records are older, 47% newer
  • In a Medicare fileNo · 53% of these records are
  • In the CMS Doctors and Clinicians fileNo · 29% of these records are
  • Record last updated2020 · 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 2080P0207X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Pediatric Hematology & Oncology Physician providers in California

There are 417 pediatric hematology & oncology physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 417 in California → Every provider in Los Angeles → Pediatric Hematology & Oncology Physician nationwide →

The 8 pediatric hematology & oncology physician records with the nearest ZIP codes

  1. Anna Butturini, MDLos Angeles, CA 900271467551499
  2. Jerry Cheng, M.D.Los Angeles, CA 900271093741175
  3. Thomas Coates, MDLos Angeles, CA 900271790885697
  4. Andrew Dietz, MD, MSLos Angeles, CA 900271700992443
  5. Edward Gomperts, MDLos Angeles, CA 900271306946215
  6. Rima Jubran, MDLos Angeles, CA 900271649379140
  7. William May, MDLos Angeles, CA 900271790884898
  8. Fariba Navid, MDLos Angeles, CA 900271144223926

Common questions

What is Robert J. Brown, M.D.'s NPI number?

Robert J. Brown, M.D.'s National Provider Identifier (NPI) is 1174712962, issued on Oct 17, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Robert J. Brown, M.D. located?

The NPPES record lists a practice address at 4650 Sunset Boulevard, Los Angeles, CA, 90027. Phone: (323) 361-4460. Providers update this record themselves, so call before visiting.

How can I verify Robert J. Brown, M.D.'s license?

NPPES lists California license number A 108632, 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.

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.