Herbert Marshak, MD
General Practice Physician · Los Angeles, CA
Herbert Marshak, MD is a general practice physician with a practice address in Los Angeles, California, and NPI 1235232802, issued on Sep 7, 2006. Check the license (California A29118, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Herbert Marshak
- Credential
- MD
- Primary taxonomy
- General Practice Physician 208D00000X
- License number
- A29118 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1711 W Temple St, Los Angeles, CA 90026
- Phone
- (213) 484-6681
- Enumerated
- Sep 7, 2006
- Record last updated
- Jul 14, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (213) 484-6860
- Medicaid ID
- 00A291180 CA
- Entity
- Type 1 · individual
8 nearest general practice physician records → All 1,956 in California → Look up another NPI →
Also registered at 1711 W Temple St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Samuel Agra, M.D.Specialist1598719791
- Yvonne Alanes, M.DSpecialist1437196250
- Vincent Anthony, M.D., M.P.H.Nephrology Physician1396851903
- Pinky Jane Biag, RNRegistered Nurse1063066140
Verify Herbert Marshak in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A29118Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average general practice physician in 2024
255 Medicare Part D claims, against an average of 3,030 among the 8,395 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims.
Most prescribed
- Levothyroxine Sodium36 claims
- Atorvastatin Calcium22 claims
- Metoprolol Tartrate14 claims
- Escitalopram Oxalate13 claims
- Allopurinol12 claims
- Amantadine12 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.
Herbert Marshak among 1,956 general practice physician records in California
Herbert Marshak, MD is one of 1,956 general practice physician records with a practice address in California. 48% 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 5% of them.
- NPI issued2006 · 5% of these records are older, 66% newer
- In a Medicare fileYes · 48% of these records are
- In the CMS Doctors and Clinicians fileNo · 27% of these records are
- Record last updated2015 · 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 208D00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
General Practice Physician providers in California
There are 1,956 general practice physician records in California.
All 1,956 in California → Every provider in Los Angeles → General Practice Physician nationwide →
The 8 general practice physician records with the nearest ZIP codes
- Shivangi AminLos Angeles, CA 900261023454899
- Yen Doan, M.D.Los Angeles, CA 900261295767010
- Alberto Natividad, MDLos Angeles, CA 900261851464838
- Cesar Velez, MDLos Angeles, CA 900261922043587
- Jason Aguirre, M.D.Los Angeles, CA 900251003200957
- Aret Akian, M.D.Los Angeles, CA 900271285792762
- Amanda Garces, MDLos Angeles, CA 900271639376882
- Priya JagadeesanLos Angeles, CA 900271770110587
Common questions
What is Herbert Marshak, MD's NPI number?
Herbert Marshak, MD's National Provider Identifier (NPI) is 1235232802, issued on Sep 7, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Herbert Marshak, MD located?
The NPPES record lists a practice address at 1711 W Temple St, Los Angeles, CA, 90026. Phone: (213) 484-6681. Providers update this record themselves, so call before visiting.
How can I verify Herbert Marshak, MD's license?
NPPES lists California license number A29118, 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 Herbert Marshak, MD prescribe under Medicare Part D?
In 2024, Herbert Marshak, MD had 255 Medicare Part D claims; the average among general practice physician prescribers was 3,030. 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.