Christos Fountzilas, M.D.
Medical Oncology Physician · Buffalo, NY
Christos Fountzilas, M.D. is a medical oncology physician with a practice address in Buffalo, New York, and NPI 1558672105, issued on Jun 29, 2010. Check the license (New York 287267, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Christos Fountzilas
- Credential
- M.D.
- Primary taxonomy
- Medical Oncology Physician 207RX0202X
- License number
- 287267 NY
Self-reported in NPPES; status is on the state search - Practice location
- Elm And Carlton Streets, Buffalo, NY 14263
- Phone
- (716) 845-2300
- Enumerated
- Jun 29, 2010
- Record last updated
- Jul 15, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20170724001006); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest medical oncology physician records → All 548 in New York → Look up another NPI →
Also registered at Elm And Carlton Streets
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ajay Abad, MDNeurology Physician1639311244
- Ronald Alberico, MDDiagnostic Radiology Physician1366447567
- Nikolaos Almyroudis, MDInfectious Disease Physician1962407163
- Marycatherine Aungst, FNPNurse Practitioner1881188639
- Molly Aungst, ANPNurse Practitioner1699117606
- Barbara Bambach, MDPediatric Hematology & Oncology Physician1710982418
Verify Christos Fountzilas 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 287267Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
65% fewer Medicare Part D claims than the average medical oncology physician in 2024
249 Medicare Part D claims for 82 beneficiaries, against an average of 703 among the 4,230 providers of this specialty who prescribed in Part D. Brand-name drugs were 29% of claims. 19 claims were for opioids.
Most prescribed
- Prochlorperazine Maleate28 claims
- Mirtazapine20 claims
- Metoclopramide Hcl16 claims
- Xarelto16 claims
- Eliquis15 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.
Bills Medicare through one group practice
- Roswell Park Cancer InstituteBuffalo, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Christos Fountzilas among 548 medical oncology physician records in New York
Christos Fountzilas, M.D. is one of 548 medical oncology physician records with a practice address in New York. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 62% of them.
- NPI issued2010 · 62% of these records are older, 35% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated2006 · median 2005 among the 389 with a school on file
- Record last updated2019 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RX0202X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Medical Oncology Physician providers in New York
There are 548 medical oncology physician records in New York.
All 548 in New York → Every provider in Buffalo → Medical Oncology Physician nationwide →
The 8 medical oncology physician records with the nearest ZIP codes
- Ajlan Atasoy, MDBuffalo, NY 142631538320023
- Gurkamal Chatta, MDBuffalo, NY 142631114999083
- Hongbin Chen, MD PHDBuffalo, NY 142631306982020
- Marco Davila, M.D.Buffalo, NY 142631326204322
- Saby George, MDBuffalo, NY 142631063686418
- Liveleen Gill, M.D.Buffalo, NY 142631427042647
- Francisco Hernandez-Ilizaliturri, MDBuffalo, NY 142631477559359
- Renuka Iyer, MDBuffalo, NY 142631891792982
Common questions
What is Christos Fountzilas, M.D.'s NPI number?
Christos Fountzilas, M.D.'s National Provider Identifier (NPI) is 1558672105, issued on Jun 29, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Christos Fountzilas, M.D. located?
The NPPES record lists a practice address at Elm And Carlton Streets, Buffalo, NY, 14263. Phone: (716) 845-2300. Providers update this record themselves, so call before visiting.
How can I verify Christos Fountzilas, M.D.'s license?
NPPES lists New York license number 287267, 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 Christos Fountzilas, M.D. prescribe under Medicare Part D?
In 2024, Christos Fountzilas, M.D. had 249 Medicare Part D claims for 82 beneficiaries; the average among medical oncology physician prescribers was 703. Part D covers Medicare prescriptions only.
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.