NANDAKUMAR SRINIVASAN MD
NPI 1235270927
Internal Medicine - Gastroenterology in Seattle, WA
About Nandakumar Srinivasan Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
NANDAKUMAR SRINIVASAN MD (NPI 1235270927) is an individual gastroenterology provider in Seattle, Washington, licensed in Washington (MD60349184) and active in the NPI registry since February 2007. He is enrolled in Medicare PECOS, is affiliated with Sacred Heart Medical Center - Riverbend, and is a graduate of Other (2000).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 4
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
Nandakumar Srinivasan 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 Reassignment
Medicare enrollment records show Nandakumar Srinivasan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Springfield, OR 97477
- Reassigned Medicare billing, Oregon enrollment
- 412 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 8
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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Sacred Heart Medical Center - Riverbend
Acute Care Hospitals · Springfield, ORPeace Harbor Medical Center
Critical Access Hospitals · Florence, ORPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 98101 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.
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 Nandakumar Srinivasan's NPI number?
The NPI number for Nandakumar Srinivasan is 1235270927. It was assigned to this individual provider in the NPPES registry on February 8, 2007.
Where is Nandakumar Srinivasan located?
Nandakumar Srinivasan practices at 1100 9th Ave Ms:c3-Gas, Seattle, WA 98101. The listed phone number is (206) 223-2319.
What is Nandakumar Srinivasan's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.
Is Nandakumar Srinivasan enrolled in Medicare?
Yes. Nandakumar Srinivasan 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 organization bills Medicare for Nandakumar Srinivasan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Nandakumar Srinivasan reassigns Medicare benefits to Peacehealth Medical Group (Springfield, OR). The 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 Nandakumar Srinivasan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Nandakumar Srinivasan accept?
Health plans from BridgeSpan Health Company, Kaiser Permanente, Moda Health Plan, Inc., PacificSource Health Plans and Providence Health Plan and 1 other insurer list Nandakumar Srinivasan 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.
Is Nandakumar Srinivasan affiliated with any hospitals?
According to CMS data, Nandakumar Srinivasan is affiliated with Sacred Heart Medical Center - Riverbend and Peace Harbor Medical Center.
When was this NPI record last updated?
The NPPES record for Nandakumar Srinivasan was last updated on July 16, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.
# Nandakumar Srinivasan, MD · NPI 1235270927
Gastroenterology physician in Seattle, Washington. Individual provider, active in the CMS NPPES registry since February 8, 2007.
## Identity
- **NPI:** 1235270927 (Entity type: Individual)
- **Enumerated:** February 8, 2007
- **Primary specialty:** Internal Medicine - Gastroenterology · taxonomy 207RG0100X
- **State license:** MD60349184 (Washington)
- **Sole proprietor:** No
## Practice location
- **Address:** 1100 9TH AVE, MS:C3-GAS, Seattle, WA 98101-2756
- **Phone:** (206) 223-2319 · **Fax:** (206) 341-1188
## 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:** Peacehealth Medical Group (NPI 1881860856, Springfield, OR), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2000
## Record status
- **NPPES last updated:** July 16, 2013
- **Other identifiers:** Other P00849771 (MN); Medicaid 1235270927 (WA); Medicaid ENROLLED (MN); and 1 more
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Source: [NPI Profile](https://npiprofile.com/npi/1235270927) · Data from the CMS NPPES public registry.