PONNANDAI S SOMASUNDAR MD
NPI 1538212923
Surgery in Providence, RI
About Ponnandai S Somasundar Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
PONNANDAI S SOMASUNDAR MD (NPI 1538212923) is an individual surgery provider in Providence, Rhode Island, licensed in Rhode Island (MD12223) and active in the NPI registry since January 2007. He is enrolled in Medicare PECOS, is affiliated with Roger Williams Medical Center, and is a graduate of Other (1990).
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 and accepts Medicare assignment
Ponnandai S Somasundar 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 Ponnandai Somasundar reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Providence, RI 02908
- Reassigned Medicare billing, Rhode Island enrollment
- 96 clinicians in this Medicare group
Providence, RI 02908
- Reassigned Medicare billing, Rhode Island enrollment
- 162 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
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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Roger Williams Medical Center
Acute Care Hospitals · Providence, RIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02908 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.
PROVIDENCE, RI 02908
PROVIDENCE, RI 02908
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 Ponnandai Somasundar's NPI number?
The NPI number for Ponnandai Somasundar is 1538212923. It was assigned to this individual provider in the NPPES registry on January 19, 2007.
Where is Ponnandai Somasundar located?
Ponnandai Somasundar practices at 50 Maude St, Providence, RI 02908. The listed phone number is (401) 456-2441.
What is Ponnandai Somasundar's specialty?
The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.
Is Ponnandai Somasundar enrolled in Medicare?
Yes. Ponnandai Somasundar 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 Ponnandai Somasundar's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ponnandai Somasundar reassigns Medicare benefits to 2 organizations: Chartercare Roger Williams Medical Center (Providence, RI) and Prospect Chartercare Rwmc, LLC (Providence, RI). 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 Ponnandai Somasundar's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Ponnandai Somasundar affiliated with any hospitals?
According to CMS data, Ponnandai Somasundar is affiliated with Roger Williams Medical Center.
When was this NPI record last updated?
The NPPES record for Ponnandai Somasundar was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.
# Ponnandai S Somasundar, MD · NPI 1538212923
Surgery physician in Providence, Rhode Island. Individual provider, active in the CMS NPPES registry since January 19, 2007.
## Identity
- **NPI:** 1538212923 (Entity type: Individual)
- **Enumerated:** January 19, 2007
- **Primary specialty:** Surgery · taxonomy 208600000X
- **State license:** MD12223 (Rhode Island)
- **Sole proprietor:** No
## Practice location
- **Address:** 50 MAUDE ST, Providence, RI 02908-4325
- **Phone:** (401) 456-2441
## 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): Chartercare Roger Williams Medical Center (NPI 1649009507, Providence, RI); Prospect Chartercare Rwmc, LLC (NPI 1285059287, Providence, RI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1990
## Record status
- **NPPES last updated:** July 8, 2007
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Source: [NPI Profile](https://npiprofile.com/npi/1538212923) · Data from the CMS NPPES public registry.