DR. PETER ANDRIJA NIGROVIC MD
NPI 1154388528
Internal Medicine - Rheumatology in Boston, MA
About Dr. Peter Andrija Nigrovic Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. PETER ANDRIJA NIGROVIC MD (NPI 1154388528) is an individual rheumatology provider in Boston, Massachusetts, licensed in Massachusetts (155108) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS, is affiliated with Brigham And Women's Hospital, and is a graduate of Harvard Medical School (1995).
NPPES Registry Identity
Specialties & Licenses 2
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
Dr. Peter Andrija Nigrovic 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 Peter Nigrovic reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Boston, MA 02115
- Reassigned Medicare billing, Massachusetts enrollment
- 4,574 clinicians in this Medicare group
Boston, MA 02115
- Reassigned Medicare billing, Massachusetts enrollment
- 1,358 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Brigham And Women's Hospital
Acute Care Hospitals · Boston, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02115 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 Peter Nigrovic's NPI number?
The NPI number for Peter Nigrovic is 1154388528. It was assigned to this individual provider in the NPPES registry on April 28, 2006.
Where is Peter Nigrovic located?
Peter Nigrovic practices at One Jimmy Fund Way Rheumatology Div Smith Bldg Room 516C, Boston, MA 02115. The listed phone number is (617) 525-1031.
What is Peter Nigrovic's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.
Is Peter Nigrovic enrolled in Medicare?
Yes. Peter Nigrovic 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 Peter Nigrovic's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Peter Nigrovic reassigns Medicare benefits to 2 organizations: Brigham & Womens Physicians Organization Inc (Boston, MA) and Children's Hospital Pediatric Associates, 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 Peter Nigrovic's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Peter Nigrovic accept?
Health plans from Anthem Blue Cross and Blue Shield and Taro Health list Peter Nigrovic 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 Peter Nigrovic affiliated with any hospitals?
According to CMS data, Peter Nigrovic is affiliated with Brigham And Women's Hospital.
When was this NPI record last updated?
The NPPES record for Peter Nigrovic was last updated on June 27, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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. Peter Andrija Nigrovic, MD · NPI 1154388528
Rheumatology physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since April 28, 2006.
## Identity
- **NPI:** 1154388528 (Entity type: Individual)
- **Enumerated:** April 28, 2006
- **Primary specialty:** Internal Medicine - Rheumatology · taxonomy 207RR0500X
- **State license:** 155108 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** ONE JIMMY FUND WAY, RHEUMATOLOGY DIV SMITH BLDG ROOM 516C, Boston, MA 02115
- **Phone:** (617) 525-1031 · **Fax:** (617) 525-1010
## 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): Brigham & Womens Physicians Organization Inc (NPI 1033535497, Boston, MA); Children's Hospital Pediatric Associates, Inc (NPI 1457306664, Boston, MA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Harvard Medical School, class of 1995
## Record status
- **NPPES last updated:** June 27, 2012
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Source: [NPI Profile](https://npiprofile.com/npi/1154388528) · Data from the CMS NPPES public registry.