DR. AHILAN ARULANANDAN MD
NPI 1992148266
Internal Medicine - Gastroenterology in Whittier, CA
About Dr. Ahilan Arulanandan Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. AHILAN ARULANANDAN MD (NPI 1992148266) is an individual gastroenterology provider in Whittier, California, licensed in California (A132459) and active in the NPI registry since April 2013. He is enrolled in Medicare PECOS, maintains a secondary practice location in San Diego, and is a graduate of University Of California, San Diego School Of Medicine (2013).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
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
Dr. Ahilan Arulanandan 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
2Medicare enrollment records show Ahilan Arulanandan reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Whittier, CA 90606
- Reassigned Medicare billing, California enrollment
- 840 clinicians in this Medicare group
Santa Clara, CA 95051
- Reassigned Medicare billing, California enrollment
- 20,078 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 90606 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 4
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
WHITTIER, CA 90606
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 Ahilan Arulanandan's NPI number?
The NPI number for Ahilan Arulanandan is 1992148266. It was assigned to this individual provider in the NPPES registry on April 16, 2013.
Where is Ahilan Arulanandan located?
Ahilan Arulanandan practices at 12291 Washington Blvd Ste 201, Whittier, CA 90606. The listed phone number is (562) 698-0306.
What is Ahilan Arulanandan's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.
Is Ahilan Arulanandan enrolled in Medicare?
Yes. Ahilan Arulanandan 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 Ahilan Arulanandan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ahilan Arulanandan reassigns Medicare benefits to 2 organizations: Pih Health Physicians (Whittier, CA) and Permanente Medical Group Inc (Santa Clara, CA). 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 Ahilan Arulanandan'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 Ahilan Arulanandan was last updated on December 17, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Dr. Ahilan Arulanandan, MD · NPI 1992148266
Gastroenterology physician in Whittier, California. Individual provider, active in the CMS NPPES registry since April 16, 2013.
## Identity
- **NPI:** 1992148266 (Entity type: Individual)
- **Enumerated:** April 16, 2013
- **Primary specialty:** Internal Medicine - Gastroenterology · taxonomy 207RG0100X
- **State license:** A132459 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 12291 WASHINGTON BLVD STE 201, Whittier, CA 90606-2549
- **Phone:** (562) 698-0306
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Pih Health Physicians (NPI 1376793695, Whittier, CA); Permanente Medical Group Inc (NPI 1073606299, Santa Clara, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of California, San Diego School Of Medicine, class of 2013
## Record status
- **NPPES last updated:** December 17, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1992148266) · Data from the CMS NPPES public registry.