Marvin L. Tan, MD
Developmental - Behavioral Pediatrics Physician · Bellflower, CA
Marvin L. Tan, MD is a developmental - behavioral pediatrics physician with a practice address in Bellflower, California, and NPI 1942377817, issued on Nov 29, 2006. Check the license (California G74523, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Marvin L. Tan
- Credential
- MD
- Primary taxonomy
- Developmental - Behavioral Pediatrics Physician 2080P0006X
- License number
- G74523 CA
Self-reported in NPPES; status is on the state search - Practice location
- 9400 Rosecrans Ave, Bellflower, CA 90706
- Phone
- (562) 461-3000
- Enumerated
- Nov 29, 2006
- Record last updated
- Nov 30, 2021 (not updated in 5 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest developmental - behavioral pediatrics physician records → All 160 in California → Look up another NPI →
Also registered at 9400 Rosecrans Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Basil Abdelkarim, MDInternal Medicine Physician1003968454
- Le Marie Abellon, NPNurse Practitioner1144389867
- Adrian Acevedo, MDEmergency Medicine Physician1407923303
- Pravin Acharya, MDEmergency Medicine Physician1104993088
- Michele Afshar, PAPhysician Assistant1013065952
- Maria Agbing-Mamangun, MDPsychiatry Physician1063589984
Verify Marvin L. Tan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G74523Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
87% fewer Medicare Part D claims than the average developmental - behavioral pediatrics physician in 2024
14 Medicare Part D claims, against an average of 109 among the 122 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Methylphenidate Er13 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.
Marvin L. Tan among 160 developmental - behavioral pediatrics physician records in California
Marvin L. Tan, MD is one of 160 developmental - behavioral pediatrics physician records with a practice address in California. 18% 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 8% of them.
- NPI issued2006 · 8% of these records are older, 67% newer
- In a Medicare fileYes · 18% of these records are
- In the CMS Doctors and Clinicians fileNo · 6% of these records are
- Record last updated2021 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2080P0006X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Developmental - Behavioral Pediatrics Physician providers in California
There are 160 developmental - behavioral pediatrics physician records in California.
All 160 in California → Every provider in Bellflower → Developmental - Behavioral Pediatrics Physician nationwide →
The 8 developmental - behavioral pediatrics physician records with the nearest ZIP codes
- Leonard Baker, M.D.La Canada, CA 910111255453627
- Ricki Robinson, M.D.La Canada, CA 910111649392317
- Diane Danis, M.D.Pasadena, CA 911011912121328
- Janice Carter, M.D. M.P.H. F.A.A.P.Marina Del Rey, CA 902921134130230
- Preeya DesaiLos Angeles, CA 900951760845671
- Rolanda Gott, MDLos Angeles, CA 900951588617559
- Sai Iyer, M.D.Los Angeles, CA 900951851604474
- Irene Koolwijk, M.D.Los Angeles, CA 900951518164706
Common questions
What is Marvin L. Tan, MD's NPI number?
Marvin L. Tan, MD's National Provider Identifier (NPI) is 1942377817, issued on Nov 29, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Marvin L. Tan, MD located?
The NPPES record lists a practice address at 9400 Rosecrans Ave, Bellflower, CA, 90706. Phone: (562) 461-3000. Providers update this record themselves, so call before visiting.
How can I verify Marvin L. Tan, MD's license?
NPPES lists California license number G74523, 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 L. Tan, MD prescribe under Medicare Part D?
In 2024, Marvin L. Tan, MD had 14 Medicare Part D claims; the average among developmental - behavioral pediatrics physician prescribers was 109. 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.