DR. GAYATRI VAIDYANATHAN MBBS
NPI 1750524591
Internal Medicine - Hematology & Oncology in Williamsville, NY
About Dr. Gayatri Vaidyanathan Mbbs NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. GAYATRI VAIDYANATHAN MBBS (NPI 1750524591) is an individual hematology & oncology provider in Williamsville, New York, licensed in New York (278391) and active in the NPI registry since April 2009. She is enrolled in Medicare PECOS, is affiliated with Kaleida Health, and is a graduate of Other (2004).
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
Dr. Gayatri Vaidyanathan Mbbs 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
2Medicare enrollment records show Gayatri Vaidyanathan reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Williamsville, NY 14221
- Reassigned Medicare billing, New York enrollment
- 344 clinicians in this Medicare group
Cheektowaga, NY 14225
- Reassigned Medicare billing, New York enrollment
- 515 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 34
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 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Kaleida Health
Acute Care Hospitals · Buffalo, NYSisters Of Charity Hospital
Acute Care Hospitals · Buffalo, NYBertrand Chaffee Hospital
Acute Care Hospitals · Springville, NYMount St. Mary's Hospital & Health Center
Acute Care Hospitals · Lewiston, 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.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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 Gayatri Vaidyanathan's NPI number?
The NPI number for Gayatri Vaidyanathan is 1750524591. It was assigned to this individual provider in the NPPES registry on April 9, 2009.
Where is Gayatri Vaidyanathan located?
Gayatri Vaidyanathan practices at 295 Essjay Rd, Williamsville, NY 14221. The listed phone number is (716) 630-1343.
What is Gayatri Vaidyanathan's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.
Is Gayatri Vaidyanathan enrolled in Medicare?
Yes. Gayatri Vaidyanathan 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 Gayatri Vaidyanathan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gayatri Vaidyanathan reassigns Medicare benefits to 2 organizations: Buffalo Medical Group, P.C. (Williamsville, NY) and Sisters Of Charity Hospital Of Buffalo New York (Cheektowaga, 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 Gayatri Vaidyanathan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Gayatri Vaidyanathan affiliated with any hospitals?
According to CMS data, Gayatri Vaidyanathan is affiliated with Kaleida Health, Sisters Of Charity Hospital, Bertrand Chaffee Hospital, Mount St. Mary's Hospital & Health Center and Mercy Hospital Of Buffalo.
When was this NPI record last updated?
The NPPES record for Gayatri Vaidyanathan was last updated on December 14, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.