JOHN F STANIEVICH MD
NPI 1851333892
Otolaryngology in Williamsville, NY
About John F Stanievich Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOHN F STANIEVICH MD (NPI 1851333892) is an individual otolaryngology provider in Williamsville, New York, licensed in New York (143100) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 7
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
John F Stanievich Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show John Stanievich 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
- 4 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.
Physician 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.
Other Providers at the Same Location NPPES 12
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
WILLIAMSVILLE, NY 14221
WILLIAMSVILLE, NY 14221
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 John Stanievich's NPI number?
The NPI number for John Stanievich is 1851333892. It was assigned to this individual provider in the NPPES registry on June 12, 2006.
Where is John Stanievich located?
John Stanievich practices at 180 Park Club Ln Suite 200, Williamsville, NY 14221. The listed phone number is (716) 634-7350.
What is John Stanievich's specialty?
The primary specialty registered for this NPI is Otolaryngology with taxonomy code 207Y00000X.
Is John Stanievich enrolled in Medicare?
Yes. John Stanievich is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for John Stanievich's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Stanievich reassigns Medicare benefits to Buffalo Ent Specialists, LLP (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 John Stanievich's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for John Stanievich was last updated on June 23, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.
# John F Stanievich, MD · NPI 1851333892
Otolaryngology physician in Williamsville, New York. Individual provider, active in the CMS NPPES registry since June 12, 2006.
## Identity
- **NPI:** 1851333892 (Entity type: Individual)
- **Enumerated:** June 12, 2006
- **Primary specialty:** Otolaryngology · taxonomy 207Y00000X
- **State license:** 143100 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 180 PARK CLUB LN, SUITE 200, Williamsville, NY 14221-5263
- **Phone:** (716) 634-7350
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Buffalo Ent Specialists, LLP (NPI 1366528077, Williamsville, NY), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** June 23, 2010
- **Other identifiers:** Other P00145049 (NY); Other 1000417 (NY); Medicare UPIN B71649 (NY); and 4 more
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Source: [NPI Profile](https://npiprofile.com/npi/1851333892) · Data from the CMS NPPES public registry.