Marvin Ambriz, MD
Family Medicine Physician · Los Angeles, CA
Marvin Ambriz, MD is a family medicine physician with a practice address in Los Angeles, California, and NPI 1124648845, issued on Apr 22, 2020. Check the license (California A185334, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Marvin Ambriz
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- A185334 CA
Self-reported in NPPES; status is on the state search - Practice location
- 5850 S Main St, Los Angeles, CA 90003
- Phone
- (323) 897-6000
- Enumerated
- Apr 22, 2020
- Record last updated
- Feb 7, 2025
- Medicare enrollment
- Enrolled (PECOS I20250831000401); accepts Medicare assignment
- Medical or professional school
- University Of California, Geffen School Of Medicine, 2020
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 5850 S Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Revery Barnes, MDFamily Medicine Physician1669812467
- Mikki Beermann, LCSWClinical Social Worker1518042191
- Abaynesh BeleteLicensed Vocational Nurse1760198139
Verify Marvin Ambriz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A185334Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- County OF Los AngelesLos Angeles, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marvin Ambriz among 17,133 family medicine physician records in California
Marvin Ambriz, MD is one of 17,133 family medicine 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 88% of them.
- NPI issued2020 · 88% of these records are older, 9% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2020 · median 2005 among the 10,652 with a school on file
- Record last updated2025 · 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 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
829 family medicine physician records list a practice address in Los Angeles
They are 829 of the 69,537 NPPES records with a practice address in Los Angeles, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Los Angeles → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Lutful Akhanjee, MDLos Angeles, CA 900031073655866
- Revery Barnes, MDLos Angeles, CA 900031669812467
- Darcy Benedict, MD, MPHLos Angeles, CA 900031689057127
- David Bermon, M.D.Los Angeles, CA 900031770899346
- Melvin DayritLos Angeles, CA 900031518063676
- Luz Felix-Marquez, M.D.Los Angeles, CA 900031538456991
- Sandarae OsborneLos Angeles, CA 900031275674087
- Fred Sedighi, MDLos Angeles, CA 900031225258189
Common questions
What is Marvin Ambriz, MD's NPI number?
Marvin Ambriz, MD's National Provider Identifier (NPI) is 1124648845, issued on Apr 22, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Marvin Ambriz, MD located?
The NPPES record lists a practice address at 5850 S Main St, Los Angeles, CA, 90003. Phone: (323) 897-6000. Providers update this record themselves, so call before visiting.
How can I verify Marvin Ambriz, MD's license?
NPPES lists California license number A185334, 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. 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.