DR. NYI NYI TUN M.D.
NPI 1831444132
Internal Medicine in Springfield, MA
About Dr. Nyi Nyi Tun M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. NYI NYI TUN M.D. (NPI 1831444132) is an individual internal medicine provider in Springfield, Massachusetts, licensed in Massachusetts (1025608) and active in the NPI registry since July 2012. He is enrolled in Medicare PECOS, is affiliated with Baystate Wing Hospital, and is a graduate of Other (2006).
NPPES Registry Identity
Specialties & Licenses 2
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. Nyi Nyi Tun 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
3Medicare enrollment records show Nyi Nyi Tun reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Springfield, MA 01199
- Reassigned Medicare billing, Massachusetts enrollment
- 1,537 clinicians in this Medicare group
Jamestown, OH 45335
- Reassigned Medicare billing, Ohio enrollment
- 744 clinicians in this Medicare group
Troy, OH 45373
- Reassigned Medicare billing, Ohio enrollment
- 405 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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Baystate Wing Hospital
Acute Care Hospitals · Palmer, MABaystate Medical Center
Acute Care Hospitals · Springfield, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 01107 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.
Referred Medical Equipment & Supplies CMS DME claims
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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.
SPRINGFIELD, MA 01107
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 Nyi Nyi Tun's NPI number?
The NPI number for Nyi Nyi Tun is 1831444132. It was assigned to this individual provider in the NPPES registry on July 23, 2012.
Where is Nyi Nyi Tun located?
Nyi Nyi Tun practices at 759 Chestnut St Ste C3350, Springfield, MA 01107. The listed phone number is (413) 794-4320.
What is Nyi Nyi Tun's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Nyi Nyi Tun enrolled in Medicare?
Yes. Nyi Nyi Tun 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 Nyi Nyi Tun's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Nyi Nyi Tun reassigns Medicare benefits to 3 organizations: Baystate Medical Practices, Inc (Springfield, MA), Mvhe Inc (Jamestown, OH) and Upper Valley Professional Corporation (Troy, OH). 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 Nyi Nyi Tun's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Nyi Nyi Tun affiliated with any hospitals?
According to CMS data, Nyi Nyi Tun is affiliated with Baystate Wing Hospital and Baystate Medical Center.
When was this NPI record last updated?
The NPPES record for Nyi Nyi Tun was last updated on February 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.
# Dr. Nyi Nyi Tun, M.D. · NPI 1831444132
Internal Medicine physician in Springfield, Massachusetts. Individual provider, active in the CMS NPPES registry since July 23, 2012.
## Identity
- **NPI:** 1831444132 (Entity type: Individual)
- **Enumerated:** July 23, 2012
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 1025608 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 759 CHESTNUT ST STE C3350, Springfield, MA 01107-1619
- **Phone:** (413) 794-4320 · **Fax:** (413) 794-1767
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Baystate Medical Practices, Inc (NPI 1548205909, Springfield, MA); Mvhe Inc (NPI 1982657318, Jamestown, OH); Upper Valley Professional Corporation (NPI 1407872518, Troy, OH) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2006
## Record status
- **NPPES last updated:** February 9, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1831444132) · Data from the CMS NPPES public registry.