Cynthia Pathmathasan, M.D.
Family Medicine Physician · Los Angeles, CA
Cynthia Pathmathasan, M.D. is a family medicine physician with a practice address in Los Angeles, California, and NPI 1538738240, issued on Jun 18, 2021. Check the license (California 203333, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Cynthia Pathmathasan
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- 203333 CA
MD485896 PA
Self-reported in NPPES; status is on the state search - Practice location
- 3782 W Martin Luther King JR Blvd Ste 430, Los Angeles, CA 90008
- Phone
- (323) 421-2200
- Enumerated
- Jun 18, 2021
- Record last updated
- Sep 23, 2025
- Medicare enrollment
- Enrolled (PECOS I20251030004677); may accept Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Verify Cynthia Pathmathasan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 203333Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average family medicine physician in 2024
88 Medicare Part D claims, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 26% of claims.
Most prescribed
- Eliquis13 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.
Cynthia Pathmathasan among 17,133 family medicine physician records in California
Cynthia Pathmathasan, M.D. is one of 17,133 family medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 91% of them.
- NPI issued2021 · 91% of these records are older, 6% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2021 · median 2005 among the 10,652 with a school on file
- Record last updated2025 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
829 family medicine physician records list a practice address in Los Angeles
They are 829 of the 69,537 NPPES records with a practice address in Los Angeles, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Los Angeles → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Elizabeth Covington, M.D.Los Angeles, CA 900081447270988
- Jimmy Huang, D.O.Los Angeles, CA 900081780649442
- Nolan JonesLos Angeles, CA 900081679799456
- Amos Ladouceur, M.D.Los Angeles, CA 900081033413265
- Amarachi Okoro Swift, MD, MPHLos Angeles, CA 900081083065825
- Christina Cummings, M.D.Los Angeles, CA 900071639203730
- Erin Higginbotham, MDLos Angeles, CA 900071538694294
- Shahnaz HomayounshadLos Angeles, CA 900071174640429
Common questions
What is Cynthia Pathmathasan, M.D.'s NPI number?
Cynthia Pathmathasan, M.D.'s National Provider Identifier (NPI) is 1538738240, issued on Jun 18, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Cynthia Pathmathasan, M.D. located?
The NPPES record lists a practice address at 3782 W Martin Luther King JR Blvd Ste 430, Los Angeles, CA, 90008. Phone: (323) 421-2200. Providers update this record themselves, so call before visiting.
How can I verify Cynthia Pathmathasan, M.D.'s license?
NPPES lists California license number 203333, 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 Cynthia Pathmathasan, M.D. prescribe under Medicare Part D?
In 2024, Cynthia Pathmathasan, M.D. had 88 Medicare Part D claims; the average among family medicine physician prescribers was 3,544. 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.