DIANE L SERENSON-UNGAR APN
NPI 1245266360
Nurse Practitioner in Fayetteville, AR
About Diane L Serenson-ungar Apn NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DIANE L SERENSON-UNGAR APN (NPI 1245266360) is an individual nurse practitioner in Fayetteville, Arkansas, licensed in Arkansas (A01004ANP) and active in the NPI registry since June 2006. She is enrolled in Medicare PECOS, is affiliated with Bassett Healthcare, and is a graduate of Other (1989).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 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
Diane L Serenson-ungar Apn 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 Diane Serenson-ungar reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Cooperstown, NY 13326
- Reassigned Medicare billing, New York enrollment
- 1,052 clinicians in this Medicare group
Little Falls, NY 13365
- Reassigned Medicare billing, New York enrollment
- 21 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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Bassett Healthcare
Acute Care Hospitals · Cooperstown, NYLittle Falls Hospital
Critical Access Hospitals · Little Falls, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 72704 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.
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 Diane Serenson-ungar's NPI number?
The NPI number for Diane Serenson-ungar is 1245266360. It was assigned to this individual provider in the NPPES registry on June 23, 2006.
Where is Diane Serenson-ungar located?
Diane Serenson-ungar practices at 2885 W Howard Nickell Rd, Fayetteville, AR 72704. The listed phone number is (479) 409-5267.
What is Diane Serenson-ungar's specialty?
The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.
Is Diane Serenson-ungar enrolled in Medicare?
Yes. Diane Serenson-ungar 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 Diane Serenson-ungar's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Diane Serenson-ungar reassigns Medicare benefits to 2 organizations: Mary Imogene Bassett Hospital (Cooperstown, NY) and Little Falls Hospital (Little Falls, NY). 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 Diane Serenson-ungar's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Diane Serenson-ungar affiliated with any hospitals?
According to CMS data, Diane Serenson-ungar is affiliated with Bassett Healthcare and Little Falls Hospital.
When was this NPI record last updated?
The NPPES record for Diane Serenson-ungar was last updated on September 10, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.
# Diane L Serenson-Ungar, APN · NPI 1245266360
Nurse Practitioner physician in Fayetteville, Arkansas. Individual provider, active in the CMS NPPES registry since June 23, 2006.
## Identity
- **NPI:** 1245266360 (Entity type: Individual)
- **Enumerated:** June 23, 2006
- **Primary specialty:** Nurse Practitioner · taxonomy 363L00000X
- **State license:** A01004ANP (Arkansas)
- **Sole proprietor:** No
## Practice location
- **Address:** 2885 W HOWARD NICKELL RD, Fayetteville, AR 72704-5459
- **Phone:** (479) 409-5267
## 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): Mary Imogene Bassett Hospital (NPI 1083664221, Cooperstown, NY); Little Falls Hospital (NPI 1467593202, Little Falls, NY) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1989
## Record status
- **NPPES last updated:** September 10, 2020
- **Other identifiers:** Other 5T997 (AR); Medicaid 136354758 (AR)
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Source: [NPI Profile](https://npiprofile.com/npi/1245266360) · Data from the CMS NPPES public registry.