Hyman Gross, M.D.
Specialist · Santa Monica, CA
Hyman Gross, M.D. is a specialist with a practice address in Santa Monica, California, and NPI 1356383350, issued on Jun 12, 2006. Check the license with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Hyman Gross
- Credential
- M.D.
- Primary taxonomy
- Specialist 174400000X
- Practice location
- 2021 Santa Monica Blvd, Santa Monica, CA 90404
- Phone
- (310) 998-2287
- Enumerated
- Jun 12, 2006
- Record last updated
- Sep 25, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (310) 998-2247
- Medicare enrollment
- Enrolled (PECOS I20120605000209); accepts Medicare assignment
- Medical or professional school
- University Of California, Geffen School Of Medicine, 1973
- Entity
- Type 1 · individual
8 nearest specialist records → All 5,749 in California → Look up another NPI →
Also registered at 2021 Santa Monica Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Hyman Gross in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% fewer Medicare Part D claims than the average specialist in 2024
102 Medicare Part D claims for 13 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D.
Most prescribed
- Escitalopram Oxalate13 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.
Industry payments in 2024: $61.17
3 payments; by number, the most common kind was food and beverage; the largest payer was Eisai Inc. The 5,844 providers of this specialty with any payment received $4,760.79 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Hyman Gross among 5,749 specialist records in California
Hyman Gross, M.D. is one of 5,749 specialist records with a practice address in California. 30% 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 7% of them.
- NPI issued2006 · 7% of these records are older, 60% newer
- In a Medicare fileYes · 30% of these records are
- In the CMS Doctors and Clinicians fileYes · 19% of these records are
- Graduated1973 · median 1989 among the 1,075 with a school on file
- Record last updated2012 · 77% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Specialist providers in California
There are 5,749 specialist records in California.
All 5,749 in California → Every provider in Santa Monica → Specialist nationwide →
The 8 specialist records with the nearest ZIP codes
- Robert Adair, M.D.Santa Monica, CA 904041629013321
- Prabhtej Brara, M.D.Santa Monica, CA 904041215917752
- John Edwards, M.DSanta Monica, CA 904041952326928
- Sean Lai, M.D,Santa Monica, CA 904041396739470
- Robert Levin, M.D.Santa Monica, CA 904041992725527
- Terry Reichelderfer, M.D.Santa Monica, CA 904041992818736
- Lee Rosen, M.D.Santa Monica, CA 904041346295870
- John Schofield, D.O.Santa Monica, CA 904041205811023
Common questions
What is Hyman Gross, M.D.'s NPI number?
Hyman Gross, M.D.'s National Provider Identifier (NPI) is 1356383350, issued on Jun 12, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Hyman Gross, M.D. located?
The NPPES record lists a practice address at 2021 Santa Monica Blvd, Santa Monica, CA, 90404. Phone: (310) 998-2287. Providers update this record themselves, so call before visiting.
How can I verify Hyman Gross, M.D.'s license?
Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Hyman Gross, M.D. prescribe under Medicare Part D?
In 2024, Hyman Gross, M.D. had 102 Medicare Part D claims for 13 beneficiaries; the average among specialist prescribers was 1,380. 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.