Alagiasingam Rangarajan, M.D.
Pediatrics Physician · El Monte, CA
Alagiasingam Rangarajan, M.D. is a pediatrics physician with a practice address in El Monte, California, and NPI 1841382025, issued on Sep 28, 2006. Check the license (California A311172, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Alagiasingam Rangarajan
- Credential
- M.D.
- Primary taxonomy
- Pediatrics Physician 208000000X
- License number
- A311172 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3131 Santa Anita Ave, El Monte, CA 91733
- Phone
- (626) 448-6222
- Enumerated
- Sep 28, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (626) 448-0232
- Entity
- Type 1 · individual
8 nearest pediatrics physician records → All 9,272 in California → Look up another NPI →
Also registered at 3131 Santa Anita Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Samantha Chen, D.D.SDentist1326218173
- Tien DuSocial Worker1235632787
- Parveen Kaur, MDInternal Medicine Physician1346235686
- Heber Lopez, RADTIAddiction (Substance Use Disorder) Counselor1134777857
- Timothy MayAddiction (Substance Use Disorder) Counselor1639567498
Verify Alagiasingam Rangarajan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A311172Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average pediatrics physician in 2024
11 Medicare Part D claims, against an average of 375 among the 5,609 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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: $21.62
1 payment: food and beverage; the largest payer was GlaxoSmithKline, LLC. The 21,580 providers of this specialty with any payment received $842.05 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.
Alagiasingam Rangarajan among 9,272 pediatrics physician records in California
Alagiasingam Rangarajan, M.D. is one of 9,272 pediatrics physician records with a practice address in California. 31% 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 4% of them.
- NPI issued2006 · 4% of these records are older, 56% newer
- In a Medicare fileYes · 31% of these records are
- In the CMS Doctors and Clinicians fileNo · 8% of these records are
- Record last updated2007 · 65% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208000000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
26 pediatrics physician records list a practice address in El Monte
They are 26 of the 1,528 NPPES records with a practice address in El Monte, and 9,272 pediatrics physician records in California.
All 9,272 in California → Every provider in El Monte → Pediatrics Physician nationwide →
The 8 pediatrics physician records with the nearest ZIP codes
- Oscar Devera, M.D.El Monte, CA 917331205946639
- Sandy Koh, M.D.El Monte, CA 917331083726905
- Tan Nguyen, M.D.S El Monte, CA 917331326073644
- Mayra Rosado, M.D.El Monte, CA 917331295703262
- Rekha Sachdeva, M.D.,El Monte, CA 917331164583282
- Maria Khalatian, M.D.El Monte, CA 917321427191055
- Jill Abramson, MD, MPH, FAAPEl Monte, CA 917311053418079
- Barbara Adler, M.D.El Monte, CA 917311952519068
Common questions
What is Alagiasingam Rangarajan, M.D.'s NPI number?
Alagiasingam Rangarajan, M.D.'s National Provider Identifier (NPI) is 1841382025, issued on Sep 28, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Alagiasingam Rangarajan, M.D. located?
The NPPES record lists a practice address at 3131 Santa Anita Ave, El Monte, CA, 91733. Phone: (626) 448-6222. Providers update this record themselves, so call before visiting.
How can I verify Alagiasingam Rangarajan, M.D.'s license?
NPPES lists California license number A311172, 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 Alagiasingam Rangarajan, M.D. prescribe under Medicare Part D?
In 2024, Alagiasingam Rangarajan, M.D. had 11 Medicare Part D claims; the average among pediatrics physician prescribers was 375. 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.