SENTHILRAJ NADARAJAH MD
NPI 1164437935
Internal Medicine in Cerritos, CA
About Senthilraj Nadarajah Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SENTHILRAJ NADARAJAH MD (NPI 1164437935) is an individual internal medicine provider in Cerritos, California, licensed in California (CA53084) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, maintains a secondary practice location in Richland, and is a graduate of Other (1992).
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Other Identifiers 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Senthilraj Nadarajah Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
7Medicare enrollment records show Senthilraj Nadarajah reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Montebello, CA 90640
- Reassigned Medicare billing, California enrollment
- 962 clinicians in this Medicare group
Santa Monica, CA 90404
- Reassigned Medicare billing, California enrollment
- 461 clinicians in this Medicare group
Apple Valley, CA 92307
- Reassigned Medicare billing, California enrollment
- 914 clinicians in this Medicare group
Ridgecrest, CA 93555
- Reassigned Medicare billing, California enrollment
- 143 clinicians in this Medicare group
Gilroy, CA 95020
- Reassigned Medicare billing, California enrollment
- 2,460 clinicians in this Medicare group
Mountain View, CA 94040
- Reassigned Medicare billing, California enrollment
- 217 clinicians in this Medicare group
Vancouver, WA 98664
- Reassigned Medicare billing, Washington enrollment
- 915 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.
Areas of Expertise CMS Part B claims 3
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 90703 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 2
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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 Senthilraj Nadarajah's NPI number?
The NPI number for Senthilraj Nadarajah is 1164437935. It was assigned to this individual provider in the NPPES registry on July 30, 2006.
Where is Senthilraj Nadarajah located?
Senthilraj Nadarajah practices at 12855 Moorshire Dr, Cerritos, CA 90703. The listed phone number is (253) 232-7810.
What is Senthilraj Nadarajah's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Senthilraj Nadarajah enrolled in Medicare?
Yes. Senthilraj Nadarajah is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Senthilraj Nadarajah's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Senthilraj Nadarajah reassigns Medicare benefits to 7 organizations: Galen Inpatient Physicians PC (Montebello, CA), Providence Saint Johns Medical Foundation (Santa Monica, CA), Hospitalist Medicine Physicians Of California, Inc (Apple Valley, CA), Ridgecrest Regional Hospital (Ridgecrest, CA), County Of Santa Clara (Gilroy, CA) and 2 more organizations, listed in the Medicare section above. 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 Senthilraj Nadarajah's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Senthilraj Nadarajah accept?
Health plans from Premera Blue Cross Blue Shield of Alaska list Senthilraj Nadarajah as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Senthilraj Nadarajah was last updated on August 5, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 years 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.
# Senthilraj Nadarajah, MD · NPI 1164437935
Internal Medicine physician in Cerritos, California. Individual provider, active in the CMS NPPES registry since July 30, 2006.
## Identity
- **NPI:** 1164437935 (Entity type: Individual)
- **Enumerated:** July 30, 2006
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** CA53084 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 12855 MOORSHIRE DR, Cerritos, CA 90703-7277
- **Phone:** (253) 232-7810
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 7 organizations under Medicare reassignment (form CMS-855R): Galen Inpatient Physicians PC (NPI 1114703006, Montebello, CA); Providence Saint Johns Medical Foundation (NPI 1770093734, Santa Monica, CA); Hospitalist Medicine Physicians Of California, Inc (NPI 1184663965, Apple Valley, CA); Ridgecrest Regional Hospital (NPI 1639448400, Ridgecrest, CA); County Of Santa Clara (NPI 1922093533, Gilroy, CA); and 2 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1992
## Record status
- **NPPES last updated:** August 5, 2019
- **Other identifiers:** Other CA53084 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1164437935) · Data from the CMS NPPES public registry.