Marvin Eric Belzer, MD
Pediatric Adolescent Medicine Physician · Los Angeles, CA
Marvin Eric Belzer, MD is a pediatric adolescent medicine physician with a practice address in Los Angeles, California, and NPI 1013009778, issued on Sep 29, 2006. Check the license (California G61403, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Marvin Eric Belzer
- Credential
- MD
- Primary taxonomy
- Pediatric Adolescent Medicine Physician 2080A0000X
- License number
- G61403 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4650 W Sunset Blvd, Los Angeles, CA 90027
- Phone
- (323) 669-2153
- Enumerated
- Sep 29, 2006
- Record last updated
- Aug 15, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (323) 913-3691
- Medicaid ID
- 00G614030 CA
- Medicare enrollment
- Enrolled (PECOS I20040205000453); accepts Medicare assignment
- Medical or professional school
- University Of Southern California Keck School Of Medicine, 1986
- Entity
- Type 1 · individual
8 nearest pediatric adolescent medicine physician records → All 280 in California → Look up another NPI →
Also registered at 4650 W Sunset Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Joanna Aceto, D.D.S.Pediatric Dentistry1033522578
- Etai Adam, M.D.Pediatrics Physician1578811998
Verify Marvin Eric Belzer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G61403Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
89% fewer Medicare Part D claims than the average pediatric adolescent medicine physician in 2024
17 Medicare Part D claims, against an average of 148 among the 384 providers of this specialty who prescribed in Part D.
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.
Bills Medicare through one group practice
- Childrens Hospital Los Angeles Medical Group IncLos Angeles, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marvin Eric Belzer among 280 pediatric adolescent medicine physician records in California
Marvin Eric Belzer, MD is one of 280 pediatric adolescent medicine physician records with a practice address in California. 42% 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, 37% newer
- In a Medicare fileYes · 42% of these records are
- In the CMS Doctors and Clinicians fileYes · 5% of these records are
- Graduated1986 · median 2007 among the 13 with a school on file
- Record last updated2011 · 72% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2080A0000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pediatric Adolescent Medicine Physician providers in California
There are 280 pediatric adolescent medicine physician records in California.
All 280 in California → Every provider in Los Angeles → Pediatric Adolescent Medicine Physician nationwide →
The 8 pediatric adolescent medicine physician records with the nearest ZIP codes
- Claudia Borzutzky, MDLos Angeles, CA 900271326130956
- Sameh Elamir, MDLos Angeles, CA 900271821386491
- Cyrus Rangan, MDLos Angeles, CA 900271043306129
- Michele Roland, MDLos Angeles, CA 900271962598938
- Diane Tanaka, MDLos Angeles, CA 900271861588626
- Curren Warf, MDLos Angeles, CA 900271124123245
- Shelly Bar, M.D.Los Angeles, CA 900251548518525
- Svetlana Kruglyakov, M.DLos Angeles, CA 900361124107149
Common questions
What is Marvin Eric Belzer, MD's NPI number?
Marvin Eric Belzer, MD's National Provider Identifier (NPI) is 1013009778, issued on Sep 29, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Marvin Eric Belzer, MD located?
The NPPES record lists a practice address at 4650 W Sunset Blvd, Los Angeles, CA, 90027. Phone: (323) 669-2153. Providers update this record themselves, so call before visiting.
How can I verify Marvin Eric Belzer, MD's license?
NPPES lists California license number G61403, 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 Marvin Eric Belzer, MD prescribe under Medicare Part D?
In 2024, Marvin Eric Belzer, MD had 17 Medicare Part D claims; the average among pediatric adolescent medicine physician prescribers was 148. 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.