Nan Chen, M.D.
Internal Medicine Physician · Alhambra, CA
Nan Chen, M.D. is an internal medicine physician with a practice address in Alhambra, California, and NPI 1174750897, issued on Jun 20, 2009. Check the license (California A150154, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Nan Chen
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- A150154 CA
T2009014066 MO
Self-reported in NPPES; status is on the state search - Practice location
- 100 S Raymond Ave, Alhambra, CA 91801
- Phone
- (626) 570-1606
- Enumerated
- Jun 20, 2009
- Record last updated
- Apr 12, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (818) 844-3887
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 100 S Raymond Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Omid AsherianPharmacist1588390397
- Aaron Barro, PA-CPhysician Assistant1255054789
- Shirley Chang, NP-CFamily Nurse Practitioner1841841343
- Priscilla Chao, MDEmergency Medicine Physician1487186425
- Chun Chen, M.D.Anesthesiology Physician1083620934
- Tammy Chen, NP-CFamily Nurse Practitioner1174019095
Verify Nan Chen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A150154Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $142.61
3 payments; by number, the most common kind was food and beverage; the largest payer was Stemline Therapeutics Inc. The 50,334 providers of this specialty with any payment received $1,303.06 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.
Nan Chen among 17,696 internal medicine physician records in California
Nan Chen, M.D. is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 60% of them.
- NPI issued2009 · 60% of these records are older, 37% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2018 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
41 internal medicine physician records list a practice address in Alhambra
They are 41 of the 1,802 NPPES records with a practice address in Alhambra, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Alhambra → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Robert Chan, MDAlhambra, CA 918011508826488
- Alexander Chan, MDAlhambra, CA 918011467413666
- Joyce Chang, M.D.Alhambra, CA 918011952357600
- Max Chiou, MDAlhambra, CA 918011316963051
- Jin Hong, M.D.Alhambra, CA 918011972516441
- Thein Htay, M.D.Alhambra, CA 918011861594228
- Nu Khin, M.D.Alhambra, CA 918011881655199
- Eddie Lam, M.D.Alhambra, CA 918011518969971
Common questions
What is Nan Chen, M.D.'s NPI number?
Nan Chen, M.D.'s National Provider Identifier (NPI) is 1174750897, issued on Jun 20, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Nan Chen, M.D. located?
The NPPES record lists a practice address at 100 S Raymond Ave, Alhambra, CA, 91801. Phone: (626) 570-1606. Providers update this record themselves, so call before visiting.
How can I verify Nan Chen, M.D.'s license?
NPPES lists California license number A150154, 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.