MERCY HOSPITAL OF BUFFALO
NPI 1851929954
General Acute Care Hospital in Buffalo, NY
About Mercy Hospital Of Buffalo NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MERCY HOSPITAL OF BUFFALO (NPI 1851929954), doing business as Mercy Hospital Professional Services, is a healthcare organization registered as a general acute care hospital in Buffalo, New York and active in the NPI registry since April 2020. The organization lists David P Macholz, Authorized Official, as its authorized official.
NPPES Registry Identity
Specialties & Licenses 12
Other Names 1
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment, revalidation and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Mercy Hospital Of Buffalo is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Revalidation Due Date
Revalidation due by November 30, 2026
Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.
Clinicians Billing Medicare Through This Organization
497Medicare enrollment records show 497 clinicians reassign Medicare billing to Mercy Hospital Of Buffalo, which bills Medicare for the services they deliver. Of these, 39 practice at this address and 322 within 10 miles. Listed here are the 20 practicing nearest to this location.
Clinicians by Medicare Specialty 38
Nearest to this location (20)
See all 497Buffalo, NY 14220
Buffalo, NY 14220
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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 Mercy Hospital Of Buffalo's NPI number?
The NPI number for Mercy Hospital Of Buffalo is 1851929954. It was assigned to this organization in the NPPES registry on April 1, 2020. The provider is doing business as Mercy Hospital Professional Services.
Where is Mercy Hospital Of Buffalo located?
Mercy Hospital Of Buffalo is located at 565 Abbott Rd, Buffalo, NY 14220. The listed phone number is (716) 826-7000.
What is Mercy Hospital Of Buffalo's specialty?
The primary specialty registered for this NPI is General Acute Care Hospital with taxonomy code 282N00000X.
Is Mercy Hospital Of Buffalo enrolled in Medicare?
Yes. Mercy Hospital Of Buffalo is registered in the Medicare PECOS enrollment system.
When is Mercy Hospital Of Buffalo's Medicare revalidation due?
According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Non-DME Part B enrollment for this organization (New York, Clinic/Group Practice) is due for revalidation by November 30, 2026. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.
How many clinicians bill Medicare through Mercy Hospital Of Buffalo?
According to the CMS Revalidation Reassignment List (October 2026 release), 497 clinicians in 38 Medicare specialties reassign their Medicare billing to Mercy Hospital Of Buffalo. A 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 the clinician's services. The largest specialties are Nurse Practitioner (136), Internal Medicine (89) and Obstetrics/Gynecology (56). Of these, 39 practice at this address and 322 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Mercy Hospital Of Buffalo was last updated on April 1, 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.
# Mercy Hospital Of Buffalo · NPI 1851929954
General Acute Care Hospital organization in Buffalo, New York. Organization record, active in the CMS NPPES registry since April 1, 2020.
## Identity
- **NPI:** 1851929954 (Entity type: Organization)
- **Enumerated:** April 1, 2020
- **Primary specialty:** General Acute Care Hospital · taxonomy 282N00000X
- **Also known as:** Mercy Hospital Professional Services (Doing Business As)
- **Organization subpart:** Yes (part of Mercy Hospital Of Buffalo)
- **Authorized official:** David Macholz, AUTHORIZED OFFICIAL
## Practice location
- **Address:** 565 ABBOTT RD, Buffalo, NY 14220-2039
- **Phone:** (716) 826-7000
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Medicare revalidation due:** November 30, 2026 (Non-DME Part B, New York, Clinic/Group Practice) · CMS Revalidation Due Date List, October 2026 release
- **Clinicians billing through this organization:** 497 clinicians in 38 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Nurse Practitioner (136), Internal Medicine (89), Obstetrics/Gynecology (56); 39 practice at this address and 322 within 10 miles; [full list](https://npiprofile.com/npi/1851929954/clinicians) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** April 1, 2020
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Source: [NPI Profile](https://npiprofile.com/npi/1851929954) · Data from the CMS NPPES public registry.