NIZAM UD DIN
NPI 1861659625
Internal Medicine in Southbridge, MA
About Nizam Ud Din NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
NIZAM UD DIN (NPI 1861659625) is an individual internal medicine provider in Southbridge, Massachusetts, licensed in Virginia (0101266349) and active in the NPI registry since May 2008. He is enrolled in Medicare PECOS, is affiliated with Bon Secours Richmond Community Hospital, and is a graduate of Other (2002).
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
Nizam Ud Din 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
10Medicare enrollment records show Nizam Din reassigns Medicare billing to 10 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Baltimore, MD 21239
- Reassigned Medicare billing, District of Columbia enrollment
- 3,530 clinicians in this Medicare group
Washington, DC 20010
- Reassigned Medicare billing, District of Columbia enrollment
- Medicare enrollment name: Whc Physician Group LLC
- 613 clinicians in this Medicare group
Falls Church, VA 22042
- Reassigned Medicare billing, Virginia enrollment
- 1,294 clinicians in this Medicare group
Winchester, VA 22601
- Reassigned Medicare billing, Virginia enrollment
- 371 clinicians in this Medicare group
Fredericksburg, VA 22401
- Reassigned Medicare billing, Virginia enrollment
- 258 clinicians in this Medicare group
Richmond, VA 23226
- Reassigned Medicare billing, Virginia enrollment
- 104 clinicians in this Medicare group
Richmond, VA 23226
- Reassigned Medicare billing, Virginia enrollment
- 172 clinicians in this Medicare group
Elizabeth City, NC 27909
- Reassigned Medicare billing, North Carolina enrollment
- 176 clinicians in this Medicare group
Akron, OH 44304
- Reassigned Medicare billing, Ohio enrollment
- 259 clinicians in this Medicare group
Springfield, OH 45504
- Reassigned Medicare billing, Ohio enrollment
- 494 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.
Bon Secours Richmond Community Hospital
Acute Care Hospitals · Richmond, VAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 01550 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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.
SOUTHBRIDGE, MA 01550
SOUTHBRIDGE, MA 01550
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 Nizam Din's NPI number?
The NPI number for Nizam Din is 1861659625. It was assigned to this individual provider in the NPPES registry on May 20, 2008.
Where is Nizam Din located?
Nizam Din practices at 100 South St, Southbridge, MA 01550. The listed phone number is (508) 765-9771.
What is Nizam Din's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Nizam Din enrolled in Medicare?
Yes. Nizam Din 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 Nizam Din's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Nizam Din reassigns Medicare benefits to 10 organizations: Medstar Medical Group II LLC (Baltimore, MD), Whc Emerg Phys (Washington, DC), Emergency Medicine Associates P.A., P.C. (Falls Church, VA), Hospitalist Medicine Physicians Of Virginia LLC (Winchester, VA), Hospitalist Medicine Physicians Of Fredericksburg, LLC (Fredericksburg, VA) and 5 more organizations, listed in the Medicare section above. 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 Nizam Din's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Nizam Din accept?
Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian and CareSource list Nizam Din 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 Nizam Din affiliated with any hospitals?
According to CMS data, Nizam Din is affiliated with Bon Secours Richmond Community Hospital.
When was this NPI record last updated?
The NPPES record for Nizam Din was last updated on May 1, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Nizam Ud Din · NPI 1861659625
Internal Medicine physician in Southbridge, Massachusetts. Individual provider, active in the CMS NPPES registry since May 20, 2008.
## Identity
- **NPI:** 1861659625 (Entity type: Individual)
- **Enumerated:** May 20, 2008
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 0101266349 (Virginia)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 100 SOUTH ST, Southbridge, MA 01550-4051
- **Phone:** (508) 765-9771 · **Fax:** (508) 909-7735
## 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:** 10 organizations under Medicare reassignment (form CMS-855R): Medstar Medical Group II LLC (NPI 1184046187, Baltimore, MD); Whc Emerg Phys (NPI 1306260625, Washington, DC); Emergency Medicine Associates P.A., P.C. (NPI 1134117393, Falls Church, VA); Hospitalist Medicine Physicians Of Virginia LLC (NPI 1770756991, Winchester, VA); Hospitalist Medicine Physicians Of Fredericksburg, LLC (NPI 1447577572, Fredericksburg, VA); and 5 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2002
## Record status
- **NPPES last updated:** May 1, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1861659625) · Data from the CMS NPPES public registry.