JUSTIN MCMASTER MD
NPI 1851748560
Anesthesiology in Buffalo, NY
About Justin Mcmaster Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JUSTIN MCMASTER MD (NPI 1851748560) is an individual anesthesiology provider in Buffalo, New York, licensed in New York (311116) and active in the NPI registry since May 2016. He is enrolled in Medicare PECOS, is affiliated with Champlain Valley Physicians Hospital Medical Ctr, and maintains 3 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 3
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
Justin Mcmaster Md 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
3Medicare enrollment records show Justin Mcmaster reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Buffalo, NY 14263
- Reassigned Medicare billing, New York enrollment
- 602 clinicians in this Medicare group
Malone, NY 12953
- Reassigned Medicare billing, New York enrollment
- 326 clinicians in this Medicare group
Plattsburgh, NY 12901
- Reassigned Medicare billing, New York enrollment
- 675 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 2
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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Champlain Valley Physicians Hospital Medical Ctr
Acute Care Hospitals · Plattsburgh, NYOther Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BUFFALO, NY 14263
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 Justin Mcmaster's NPI number?
The NPI number for Justin Mcmaster is 1851748560. It was assigned to this individual provider in the NPPES registry on May 23, 2016.
Where is Justin Mcmaster located?
Justin Mcmaster practices at Elm And Carlton Streets, Buffalo, NY 14263. The listed phone number is (716) 845-2300.
What is Justin Mcmaster's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Justin Mcmaster enrolled in Medicare?
Yes. Justin Mcmaster 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 Justin Mcmaster's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Justin Mcmaster reassigns Medicare benefits to 3 organizations: Roswell Park Cancer Institute (Buffalo, NY), Alice Hyde Medical Center (Malone, NY) and Champlain Valley Physicians Hospital Medical Center (Plattsburgh, 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 Justin Mcmaster's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Justin Mcmaster affiliated with any hospitals?
According to CMS data, Justin Mcmaster is affiliated with Champlain Valley Physicians Hospital Medical Ctr.
When was this NPI record last updated?
The NPPES record for Justin Mcmaster was last updated on June 11, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.