Sandar Chen, MD
Internal Medicine Physician · El Monte, CA
Sandar Chen, MD is an internal medicine physician with a practice address in El Monte, California, and NPI 1255747069, issued on Jul 1, 2014. Check the license (California A145303, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Sandar Chen
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A145303 CA
Self-reported in NPPES; status is on the state search - Practice location
- 10418 Valley Blvd, El Monte, CA 91731
- Enumerated
- Jul 1, 2014
- Record last updated
- Mar 17, 2018 (not updated in 8 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
Also registered at 10418 Valley Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Karla AmayaAdministrator Registered Nurse1578913091
- Madeleine Matilde Ayllon, MSN, FNP-CFamily Nurse Practitioner1811401557
- Mylen BenitezFamily Nurse Practitioner1487021036
- Salvador Castillo, RDNRegistered Dietitian1679037477
- Maria ChanNurse's Aide1306188404
- Amber ChavezNurse's Aide1811239494
Verify Sandar Chen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A145303Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
10% more Medicare Part D claims than the average internal medicine physician in 2024
3,486 Medicare Part D claims for 99 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 23% of claims. 32 claims were for opioids.
Most prescribed
- Atorvastatin Calcium140 claims
- Gabapentin116 claims
- Losartan Potassium115 claims
- Albuterol Sulfate Hfa107 claims
- Amlodipine Besylate100 claims
- Furosemide96 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.
Industry payments in 2024: $238.77
14 payments; by number, the most common kind was food and beverage; the largest payer was GlaxoSmithKline, LLC. 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.
25 internal medicine physician records list a practice address in El Monte
They are 25 of the 1,528 NPPES records with a practice address in El Monte, and 17,696 internal medicine physician records in California.
All 25 in El Monte → All 17,696 in California → Every provider in El Monte →
Other internal medicine physician records in California
- Jacob Aaron, MDSan Francisco, CA1407202518
- Alistair Aaronson, MDStanford, CA1457628760
- Jose Abad., MDSacramento, CA1144607219
- Donna Abare, MDOakland, CA1386722155
- Marce AbareScotts Valley, CA1457744708
- Samuel Abarte, M.D.Chula Vista, CA1578535498
- Alexander Abary, MDLong Beach, CA1104995919
- Luba Abascal, MDSan Francisco, CA1023180874
- Michael Abate, MDSacramento, CA1548248131
- Wali Abawi, D.O.Joshua Tree, CA1104362268
Common questions
What is Sandar Chen, MD's NPI number?
Sandar Chen, MD's National Provider Identifier (NPI) is 1255747069, issued on Jul 1, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Sandar Chen, MD located?
The NPPES record lists a practice address at 10418 Valley Blvd, El Monte, CA, 91731. Providers update this record themselves, so call before visiting.
How can I verify Sandar Chen, MD's license?
NPPES lists California license number A145303, 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 Sandar Chen, MD prescribe under Medicare Part D?
In 2024, Sandar Chen, MD had 3,486 Medicare Part D claims for 99 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.