DR. DIEMTHUY NANCY NGUYEN M.D.
NPI 1053605451
Anesthesiology in Rochester, NY
About Dr. Diemthuy Nancy Nguyen M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. DIEMTHUY NANCY NGUYEN M.D. (NPI 1053605451) is an individual anesthesiology provider in Rochester, New York, licensed in New York (279314) and active in the NPI registry since June 2011. She is enrolled in Medicare PECOS, is affiliated with Newark-wayne Community Hospital, and maintains 4 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 4
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. Diemthuy Nancy Nguyen 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
6Medicare enrollment records show Diemthuy Nguyen reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Rochester, NY 14621
- Reassigned Medicare billing, New York enrollment
- 2,285 clinicians in this Medicare group
Rochester, NY 14617
- Reassigned Medicare billing, New York enrollment
- 1,442 clinicians in this Medicare group
Rochester, NY 14618
- Reassigned Medicare billing, New York enrollment
- Medicare enrollment name: Anesthesia Associates Of Rochester PC
- 142 clinicians in this Medicare group
Newark, NY 14513
- Reassigned Medicare billing, New York enrollment
- 679 clinicians in this Medicare group
Clifton Springs, NY 14432
- Reassigned Medicare billing, New York enrollment
- 872 clinicians in this Medicare group
Batavia, NY 14020
- Reassigned Medicare billing, New York enrollment
- 782 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 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Newark-Wayne Community Hospital
Acute Care Hospitals · Newark, NYRochester General Hospital
Acute Care Hospitals · Rochester, NYUnity Hospital
Acute Care Hospitals · Rochester, NYOther Providers at the Same Location NPPES 20
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 Diemthuy Nguyen's NPI number?
The NPI number for Diemthuy Nguyen is 1053605451. It was assigned to this individual provider in the NPPES registry on June 2, 2011.
Where is Diemthuy Nguyen located?
Diemthuy Nguyen practices at 1425 Portland Ave, Rochester, NY 14621. The listed phone number is (585) 922-4159.
What is Diemthuy Nguyen's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Diemthuy Nguyen enrolled in Medicare?
Yes. Diemthuy Nguyen 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 Diemthuy Nguyen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Diemthuy Nguyen reassigns Medicare benefits to 6 organizations: Rochester General Hospital (Rochester, NY), The Unity Hospital Of Rochester (Rochester, NY), Anesthesia Associates Of Rochester, P.C. (Rochester, NY), Newark Wayne Community Hospital (Newark, NY), Clifton Springs Sanitarium Co (Clifton Springs, NY) and 1 more organization, 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 Diemthuy Nguyen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Diemthuy Nguyen affiliated with any hospitals?
According to CMS data, Diemthuy Nguyen is affiliated with Newark-Wayne Community Hospital, Rochester General Hospital and Unity Hospital.
When was this NPI record last updated?
The NPPES record for Diemthuy Nguyen was last updated on January 23, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 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. Diemthuy Nancy Nguyen, M.D. · NPI 1053605451
Anesthesiology physician in Rochester, New York. Individual provider, active in the CMS NPPES registry since June 2, 2011.
## Identity
- **NPI:** 1053605451 (Entity type: Individual)
- **Enumerated:** June 2, 2011
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** 279314 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 1425 PORTLAND AVE, Rochester, NY 14621-3011
- **Phone:** (585) 922-4159 · **Fax:** (585) 922-3731
## 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:** 6 organizations under Medicare reassignment (form CMS-855R): Rochester General Hospital (NPI 1063531929, Rochester, NY); The Unity Hospital Of Rochester (NPI 1457395766, Rochester, NY); Anesthesia Associates Of Rochester, P.C. (NPI 1760421788, Rochester, NY); Newark Wayne Community Hospital (NPI 1346369212, Newark, NY); Clifton Springs Sanitarium Co (NPI 1366505463, Clifton Springs, NY); and 1 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** State University Of New York At Buffalo School Of Medicine, class of 2011
## Record status
- **NPPES last updated:** January 23, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1053605451) · Data from the CMS NPPES public registry.