NPPES file of Aug 9, 2026

Robert Alan Gross, MD

Gastroenterology Physician · Culver City, CA

Robert Alan Gross, MD is a gastroenterology physician with a practice address in Culver City, California, and NPI 1790821163, issued on Jan 30, 2007. Check the license (California G21342, 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
1790821163
Name
Robert Alan Gross
Credential
MD
Primary taxonomy
Gastroenterology Physician 207RG0100X
License number
G21342 CA
Self-reported in NPPES; status is on the state search
Practice location
3831 Hughes Ave, Culver City, CA 90232
Phone
(310) 204-4044
Enumerated
Jan 30, 2007
Record last updated
Oct 29, 2010 (not updated in 16 years: call before relying on the address or phone)
Fax
(310) 204-1449
Medicaid ID
000G21342 CA
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 gastroenterology physician records → All 2,140 in California → Look up another NPI →

Also registered at 3831 Hughes Ave

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

  1. Behrad Aynehchi, M.D.Otolaryngology/Facial Plastic Surgery Physician1275709040
  2. Mary Baker, D.P.TPhysical Therapist1255503132
  3. Betsy Blechman, M.D.Ophthalmology Physician1134225147
  4. Theodawn Brown, PA-CMedical Physician Assistant1265467575
  5. Blake Crawford, M.D.Ophthalmology Physician1831381888
  6. Jeremy Defranco, M.D.Psychiatry Physician1114291010

Verify Robert Alan Gross in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G21342    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

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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Robert Alan Gross among 2,140 gastroenterology physician records in California

Robert Alan Gross, MD is one of 2,140 gastroenterology physician records with a practice address in California. 83% 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 52% of them.

  • NPI issued2007 · 52% of these records are older, 37% newer
  • In a Medicare fileNo · 83% of these records are
  • In the CMS Doctors and Clinicians fileNo · 72% of these records are
  • Record last updated2010 · 60% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Gastroenterology Physician providers in California

There are 2,140 gastroenterology physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 2,140 in California → Every provider in Culver City → Gastroenterology Physician nationwide →

The 8 gastroenterology physician records with the nearest ZIP codes

  1. Paul Key, MDCulver City, CA 902321013945328
  2. Paul Frenkiel, M.D.Downey, CA 902401245284645
  3. Gaurang Chaurushia, MDDowney, CA 902411538126131
  4. Kevin Dholaria, M.D.Downey, CA 902411629343736
  5. Ann Lee, M.D.Downey, CA 902411396979126
  6. Andrew Nguyen, MDDowney, CA 902411154784783
  7. Sushil Ojha, MDDowney, CA 902411053377093
  8. Rajeev Attam, MDDowney, CA 902421184694309

Common questions

What is Robert Alan Gross, MD's NPI number?

Robert Alan Gross, MD's National Provider Identifier (NPI) is 1790821163, issued on Jan 30, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Robert Alan Gross, MD located?

The NPPES record lists a practice address at 3831 Hughes Ave, Culver City, CA, 90232. Phone: (310) 204-4044. Providers update this record themselves, so call before visiting.

How can I verify Robert Alan Gross, MD's license?

NPPES lists California license number G21342, 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.