DEANNA M PIECZYNSKI AGPCNP
NPI 1578023172
Nurse Practitioner - Adult Health in Williamsville, NY
About Deanna M Pieczynski Agpcnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DEANNA M PIECZYNSKI AGPCNP (NPI 1578023172) is an individual adult health provider in Williamsville, New York, licensed in New York (309099) and active in the NPI registry since March 2019. She is enrolled in Medicare PECOS, is affiliated with Sisters Of Charity Hospital, and maintains a secondary practice location in Orchard Park.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
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
Deanna M Pieczynski Agpcnp 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 Reassignment
Medicare enrollment records show Deanna Pieczynski reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Williamsville, NY 14221
- Reassigned Medicare billing, New York enrollment
- 344 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 10
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.
Sisters Of Charity Hospital
Acute Care Hospitals · Buffalo, NYMercy Hospital Of Buffalo
Acute Care Hospitals · Buffalo, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 14221 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
WILLIAMSVILLE, NY 14221
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 Deanna Pieczynski's NPI number?
The NPI number for Deanna Pieczynski is 1578023172. It was assigned to this individual provider in the NPPES registry on March 21, 2019.
Where is Deanna Pieczynski located?
Deanna Pieczynski practices at 295 Essjay Rd, Williamsville, NY 14221. The listed phone number is (716) 630-2639.
What is Deanna Pieczynski's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Adult Health, with taxonomy code 363LA2200X.
Is Deanna Pieczynski enrolled in Medicare?
Yes. Deanna Pieczynski 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 organization bills Medicare for Deanna Pieczynski's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Deanna Pieczynski reassigns Medicare benefits to Buffalo Medical Group, P.C. (Williamsville, NY). The 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 Deanna Pieczynski's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Deanna Pieczynski affiliated with any hospitals?
According to CMS data, Deanna Pieczynski is affiliated with Sisters Of Charity Hospital and Mercy Hospital Of Buffalo.
When was this NPI record last updated?
The NPPES record for Deanna Pieczynski was last updated on March 21, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.
# Deanna M Pieczynski, AGPCNP · NPI 1578023172
Adult Health physician in Williamsville, New York. Individual provider, active in the CMS NPPES registry since March 21, 2019.
## Identity
- **NPI:** 1578023172 (Entity type: Individual)
- **Enumerated:** March 21, 2019
- **Primary specialty:** Nurse Practitioner - Adult Health · taxonomy 363LA2200X
- **State license:** 309099 (New York)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 295 ESSJAY RD, Williamsville, NY 14221-8216
- **Phone:** (716) 630-2639
## 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:** Buffalo Medical Group, P.C. (NPI 1881659506, Williamsville, NY), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2019
## Record status
- **NPPES last updated:** March 21, 2019
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Source: [NPI Profile](https://npiprofile.com/npi/1578023172) · Data from the CMS NPPES public registry.