Gayatri Vaidyanathan, MBBS
Hematology & Oncology Physician · Williamsville, NY
Gayatri Vaidyanathan, MBBS is a hematology & oncology physician with a practice address in Williamsville, New York, and NPI 1750524591, issued on Apr 9, 2009. Check the license (New York 278391, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Gayatri Vaidyanathan
- Credential
- MBBS
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- 278391 NY
Self-reported in NPPES; status is on the state search - Practice location
- 295 Essjay RD, Williamsville, NY 14221
- Phone
- (716) 630-1343
- Enumerated
- Apr 9, 2009
- Record last updated
- Dec 14, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (716) 817-1780
- Medicare enrollment
- Enrolled (PECOS I20170224001529); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 1,163 in New York → Look up another NPI →
Also registered at 295 Essjay RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Renee Andreeff, PHYSICIAN ASSISTANTPhysician Assistant1063567444
- Melissa Apa, PHARMDPharmacist1922383447
- Bashir Attuwaybi, M.D.Colon & Rectal Surgery Physician1578791992
- Tracy Bauer, PAPhysician Assistant1629036207
- Nicole BlessPhysician Assistant1245707538
- Alicia Bommersbach, PHYSICIAN ASSISTANTMedical Physician Assistant1245244516
Verify Gayatri Vaidyanathan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 278391Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.5 times the Medicare Part D claims of the average hematology & oncology physician in 2024
2,159 Medicare Part D claims for 398 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 22% of claims. 126 claims were for opioids.
Most prescribed
- Anastrozole436 claims
- Hydroxyurea144 claims
- Letrozole123 claims
- Exemestane113 claims
- Prednisone98 claims
- Tamoxifen Citrate81 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 87.1 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Buffalo Medical Group, P.C.Williamsville, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gayatri Vaidyanathan among 1,163 hematology & oncology physician records in New York
Gayatri Vaidyanathan, MBBS is one of 1,163 hematology & oncology physician records with a practice address in New York. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 62% of them.
- NPI issued2009 · 62% of these records are older, 34% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2004 · median 2002 among the 833 with a school on file
- Record last updated2021 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology & Oncology Physician providers in New York
There are 1,163 hematology & oncology physician records in New York.
All 1,163 in New York → Every provider in Williamsville → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Yijun Cheng, M.D.Williamsville, NY 142211013058213
- James Conway, MDWilliamsville, NY 142211952367252
- Marcus Dempster, MDWilliamsville, NY 142211881223519
- Frederick Hong, MDWilliamsville, NY 142211366436198
- Ankita Kapoor, MDWilliamsville, NY 142211184285785
- Adam Kotowski, MDWilliamsville, NY 142211992813828
- Michael Krabak, MDWilliamsville, NY 142211578557302
- Hong Liu, MD PHDWilliamsville, NY 142211942383807
Common questions
What is Gayatri Vaidyanathan, MBBS's NPI number?
Gayatri Vaidyanathan, MBBS's National Provider Identifier (NPI) is 1750524591, issued on Apr 9, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Gayatri Vaidyanathan, MBBS located?
The NPPES record lists a practice address at 295 Essjay RD, Williamsville, NY, 14221. Phone: (716) 630-1343. Providers update this record themselves, so call before visiting.
How can I verify Gayatri Vaidyanathan, MBBS's license?
NPPES lists New York license number 278391, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Gayatri Vaidyanathan, MBBS prescribe under Medicare Part D?
In 2024, Gayatri Vaidyanathan, MBBS had 2,159 Medicare Part D claims for 398 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.
What is Gayatri Vaidyanathan, MBBS's MIPS final score?
The 2023 MIPS final score is 87.1 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.