RYAN PETER DENHAESE M.D.
NPI 1356563381
Neurological Surgery in Williamsville, NY
About Ryan Peter Denhaese M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
RYAN PETER DENHAESE M.D. (NPI 1356563381) is an individual neurological surgery provider in Williamsville, New York, licensed in New York (243525-1) and active in the NPI registry since May 2007. He is enrolled in Medicare PECOS, is affiliated with Kenmore Mercy Hospital, and is a graduate of State University Of New York At Buffalo School Of Medicine (2001).
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
Ryan Peter Denhaese 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 Reassignment
Medicare enrollment records show Ryan Denhaese 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
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 4
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.
Kenmore Mercy Hospital
Acute Care Hospitals · Kenmore, NYOlean General Hospital
Acute Care Hospitals · Olean, 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 2
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 4
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Ryan Denhaese's NPI number?
The NPI number for Ryan Denhaese is 1356563381. It was assigned to this individual provider in the NPPES registry on May 2, 2007.
Where is Ryan Denhaese located?
Ryan Denhaese practices at 19 Limestone Dr Suite 11, Williamsville, NY 14221. The listed phone number is (716) 634-3500.
What is Ryan Denhaese's specialty?
The primary specialty registered for this NPI is Neurological Surgery with taxonomy code 207T00000X.
Is Ryan Denhaese enrolled in Medicare?
Yes. Ryan Denhaese 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 Ryan Denhaese's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ryan Denhaese reassigns Medicare benefits to Axis Neurosurgery And Spine Of Wny PLLC (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 Ryan Denhaese's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Ryan Denhaese affiliated with any hospitals?
According to CMS data, Ryan Denhaese is affiliated with Kenmore Mercy Hospital and Olean General Hospital.
When was this NPI record last updated?
The NPPES record for Ryan Denhaese was last updated on February 11, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.