DR. REX M PILLAI MD
NPI 1295979441
Radiology - Vascular & Interventional Radiology in Sacramento, CA
About Dr. Rex M Pillai Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. REX M PILLAI MD (NPI 1295979441) is an individual vascular & interventional radiology provider in Sacramento, California, licensed in California (A119038) and active in the NPI registry since April 2009. He is enrolled in Medicare PECOS and is a graduate of Other (2009).
NPPES Registry Identity
Specialties & Licenses 2
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. Rex M Pillai 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 Rex Pillai reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Sacramento, CA 95817
- Reassigned Medicare billing, California enrollment
- 2,570 clinicians in this Medicare group
Stockton, CA 95210
- Reassigned Medicare billing, California enrollment
- 20,078 clinicians in this Medicare group
Chico, CA 95926
- Reassigned Medicare billing, California enrollment
- 58 clinicians in this Medicare group
Antioch, CA 94509
- Reassigned Medicare billing, California enrollment
- 40 clinicians in this Medicare group
San Jose, CA 95122
- Reassigned Medicare billing, California enrollment
- 20 clinicians in this Medicare group
Oxnard, CA 93036
- Reassigned Medicare billing, California enrollment
- 62 clinicians in this Medicare group
Tamarac, FL 33321
- Reassigned Medicare billing, Florida enrollment
- 84 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 7
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 95817 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SACRAMENTO, CA 95817
SACRAMENTO, CA 95817
SACRAMENTO, CA 95817
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 Rex Pillai's NPI number?
The NPI number for Rex Pillai is 1295979441. It was assigned to this individual provider in the NPPES registry on April 30, 2009.
Where is Rex Pillai located?
Rex Pillai practices at 4860 Y St Suite 3100, Sacramento, CA 95817. The listed phone number is (916) 734-7809.
What is Rex Pillai's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Vascular & Interventional Radiology, with taxonomy code 2085R0204X.
Is Rex Pillai enrolled in Medicare?
Yes. Rex Pillai 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 Rex Pillai's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Rex Pillai reassigns Medicare benefits to 7 organizations: Regents Of The Univ Of Ca (Sacramento, CA), Permanente Medical Group Inc (Stockton, CA), Halo Medical Group (Chico, CA), Inview Imaging Diagnostics Inc A Professional Medical Corporation (Antioch, CA), Silver Creek Radiology Professional Corporation (San Jose, 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 Rex Pillai'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 Rex Pillai was last updated on April 6, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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. Rex M Pillai, MD · NPI 1295979441
Vascular & Interventional Radiology physician in Sacramento, California. Individual provider, active in the CMS NPPES registry since April 30, 2009.
## Identity
- **NPI:** 1295979441 (Entity type: Individual)
- **Enumerated:** April 30, 2009
- **Primary specialty:** Radiology - Vascular & Interventional Radiology · taxonomy 2085R0204X
- **State license:** A119038 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 4860 Y ST, SUITE 3100, Sacramento, CA 95817-2307
- **Phone:** (916) 734-7809
## 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): Regents Of The Univ Of Ca (NPI 1285068783, Sacramento, CA); Permanente Medical Group Inc (NPI 1548343510, Stockton, CA); Halo Medical Group (NPI 1154950236, Chico, CA); Inview Imaging Diagnostics Inc A Professional Medical Corporation (NPI 1285603837, Antioch, CA); Silver Creek Radiology Professional Corporation (NPI 1154790772, San Jose, CA); and 2 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2009
## Record status
- **NPPES last updated:** April 6, 2017
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Source: [NPI Profile](https://npiprofile.com/npi/1295979441) · Data from the CMS NPPES public registry.