AMNA DIWAN M.D.
NPI 1518162189
Orthopaedic Surgery in Brighton, MA
About Amna Diwan M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
AMNA DIWAN M.D. (NPI 1518162189) is an individual orthopaedic surgery provider in Brighton, Massachusetts, licensed in Massachusetts (264866) and active in the NPI registry since June 2007. She is enrolled in Medicare PECOS, is affiliated with St Elizabeth's Medical Center, and maintains a secondary practice location in Worcester.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Other Identifiers 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 and accepts Medicare assignment
Amna Diwan M.d. 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
4Medicare enrollment records show Amna Diwan reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Watertown, MA 02472
- Reassigned Medicare billing, Massachusetts enrollment
- 1,103 clinicians in this Medicare group
Boston, MA 02118
- Reassigned Medicare billing, Massachusetts enrollment
- 716 clinicians in this Medicare group
Brockton, MA 02301
- Reassigned Medicare billing, Massachusetts enrollment
- 264 clinicians in this Medicare group
Springfield, MA 01104
- Reassigned Medicare billing, Massachusetts enrollment
- 7 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 2
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.
St Elizabeth's Medical Center
Acute Care Hospitals · Brighton, MAMercy Medical Ctr
Acute Care Hospitals · Springfield, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02135 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.
BOSTON, MA 02135
BRIGHTON, MA 02135
BOSTON, MA 02135
BRIGHTON, MA 02135
BRIGHTON, MA 02135
BOSTON, MA 02135
BRIGHTON, MA 02135
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 Amna Diwan's NPI number?
The NPI number for Amna Diwan is 1518162189. It was assigned to this individual provider in the NPPES registry on June 15, 2007.
Where is Amna Diwan located?
Amna Diwan practices at 736 Cambridge St 9th Floor, Brighton, MA 02135. The listed phone number is (617) 779-6500.
What is Amna Diwan's specialty?
The primary specialty registered for this NPI is Orthopaedic Surgery with taxonomy code 207X00000X.
Is Amna Diwan enrolled in Medicare?
Yes. Amna Diwan 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 Amna Diwan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Amna Diwan reassigns Medicare benefits to 4 organizations: Steward Medical Group, Inc (Watertown, MA), Bmc Affiliated Physicians, Inc. (Boston, MA), Revere Medical Of Massachusetts, PC (Brockton, MA) and Sc Orthopedics Of New England,pc. (Springfield, 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 Amna Diwan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Amna Diwan accept?
Health plans from Anthem Blue Cross and Blue Shield and WellSense Health Plan list Amna Diwan 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 Amna Diwan affiliated with any hospitals?
According to CMS data, Amna Diwan is affiliated with St Elizabeth's Medical Center and Mercy Medical Ctr.
When was this NPI record last updated?
The NPPES record for Amna Diwan was last updated on March 10, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 months 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.
# Amna Diwan, M.D. · NPI 1518162189
Orthopaedic Surgery physician in Brighton, Massachusetts. Individual provider, active in the CMS NPPES registry since June 15, 2007.
## Identity
- **NPI:** 1518162189 (Entity type: Individual)
- **Enumerated:** June 15, 2007
- **Primary specialty:** Orthopaedic Surgery · taxonomy 207X00000X
- **State license:** 264866 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 736 CAMBRIDGE ST, 9TH FLOOR, Brighton, MA 02135
- **Phone:** (617) 779-6500 · **Fax:** (617) 779-6785
## 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:** 4 organizations under Medicare reassignment (form CMS-855R): Steward Medical Group, Inc (NPI 1629398219, Watertown, MA); Bmc Affiliated Physicians, Inc. (NPI 1245320910, Boston, MA); Revere Medical Of Massachusetts, PC (NPI 1336976539, Brockton, MA); Sc Orthopedics Of New England,pc. (NPI 1922502095, Springfield, MA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Baylor College Of Medicine, class of 2006
## Record status
- **NPPES last updated:** March 10, 2025
- **Other identifiers:** Medicaid 110105281A (MA)
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Source: [NPI Profile](https://npiprofile.com/npi/1518162189) · Data from the CMS NPPES public registry.