DR. NISHA ANN BASU MD
NPI 1790723310
Internal Medicine in Watertown, MA
About Dr. Nisha Ann Basu Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. NISHA ANN BASU MD (NPI 1790723310) is an individual internal medicine provider in Watertown, Massachusetts, licensed in Massachusetts (211506) and active in the NPI registry since June 2006. She is enrolled in Medicare PECOS and maintains a secondary practice location in Boston.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 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 (PECOS)
Dr. Nisha Ann Basu Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Nisha Basu reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Boston, MA 02215
- Reassigned Medicare billing, Massachusetts enrollment
- 1,477 clinicians in this Medicare group
Boston, MA 02215
- Reassigned Medicare billing, Massachusetts enrollment
- 2,579 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 02472 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 9
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 Nisha Basu's NPI number?
The NPI number for Nisha Basu is 1790723310. It was assigned to this individual provider in the NPPES registry on June 4, 2006.
Where is Nisha Basu located?
Nisha Basu practices at 101 Walnut St, Watertown, MA 02472. The listed phone number is (888) 897-1887.
What is Nisha Basu's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Nisha Basu enrolled in Medicare?
Yes. Nisha Basu is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Nisha Basu's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Nisha Basu reassigns Medicare benefits to 2 organizations: Beth Israel Deaconess Medical Center, Inc. (Boston, MA) and Harvard Medical Faculty Phys At Beth Israel Deaconess Med Ctr Inc (Boston, MA). 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 Nisha Basu's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Nisha Basu accept?
Health plans from Anthem Blue Cross and Blue Shield and Taro Health list Nisha Basu 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 Nisha Basu was last updated on July 1, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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. Nisha Ann Basu, MD · NPI 1790723310
Internal Medicine physician in Watertown, Massachusetts. Individual provider, active in the CMS NPPES registry since June 4, 2006.
## Identity
- **NPI:** 1790723310 (Entity type: Individual)
- **Enumerated:** June 4, 2006
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 211506 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 101 WALNUT ST, Watertown, MA 02472-4054
- **Phone:** (888) 897-1887
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **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): Beth Israel Deaconess Medical Center, Inc. (NPI 1548202641, Boston, MA); Harvard Medical Faculty Phys At Beth Israel Deaconess Med Ctr Inc (NPI 1194765438, Boston, MA) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** July 1, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1790723310) · Data from the CMS NPPES public registry.