DR. CYNTHIA PATHMATHASAN M.D.
NPI 1538738240
Family Medicine in Los Angeles, CA
About Dr. Cynthia Pathmathasan M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. CYNTHIA PATHMATHASAN M.D. (NPI 1538738240) is an individual family medicine provider in Los Angeles, California, licensed in California (203333) and active in the NPI registry since June 2021. She is enrolled in Medicare PECOS and is a graduate of Other (2021).
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Cynthia Pathmathasan M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Cynthia Pathmathasan reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Los Angeles, CA 90034
- Reassigned Medicare billing, California enrollment
- 13,921 clinicians in this Medicare group
East Liverpool, OH 43920
- Reassigned Medicare billing, Pennsylvania enrollment
- 7,114 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 90008 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Cynthia Pathmathasan's NPI number?
The NPI number for Cynthia Pathmathasan is 1538738240. It was assigned to this individual provider in the NPPES registry on June 18, 2021.
Where is Cynthia Pathmathasan located?
Cynthia Pathmathasan practices at 3782 W Martin Luther King Jr Blvd Ste 430, Los Angeles, CA 90008. The listed phone number is (323) 421-2200.
What is Cynthia Pathmathasan's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Cynthia Pathmathasan enrolled in Medicare?
Yes. Cynthia Pathmathasan is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Cynthia Pathmathasan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Cynthia Pathmathasan reassigns Medicare benefits to 2 organizations: Southern California Permanente Medical Group (Los Angeles, CA) and University Of Pittsburgh Physicians (East Liverpool, OH). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Cynthia Pathmathasan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Cynthia Pathmathasan was last updated on September 23, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. Cynthia Pathmathasan, M.D. · NPI 1538738240
Family Medicine physician in Los Angeles, California. Individual provider, active in the CMS NPPES registry since June 18, 2021.
## Identity
- **NPI:** 1538738240 (Entity type: Individual)
- **Enumerated:** June 18, 2021
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** 203333 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 3782 W MARTIN LUTHER KING JR BLVD STE 430, Los Angeles, CA 90008-1703
- **Phone:** (323) 421-2200
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Southern California Permanente Medical Group (NPI 1043242563, Los Angeles, CA); University Of Pittsburgh Physicians (NPI 1811945793, East Liverpool, OH) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2021
## Record status
- **NPPES last updated:** September 23, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1538738240) · Data from the CMS NPPES public registry.