Daniel Eric Fass, M.D.
Radiation Oncology Physician · Rye, NY
Daniel Eric Fass, M.D. is a radiation oncology physician with a practice address in Rye, New York, and NPI 1215049184, issued on Aug 31, 2006. Check the license (New York 1611931, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Daniel Eric Fass
- Credential
- M.D.
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License number
- 1611931 NY
Self-reported in NPPES; status is on the state search - Practice location
- 1 Theall RD, Rye, NY 10580
- Phone
- (914) 848-8950
- Enumerated
- Aug 31, 2006
- Record last updated
- Oct 31, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (914) 848-8951
- Medicare enrollment
- Enrolled (PECOS I20220920000158); accepts Medicare assignment
- Medical or professional school
- Howard University College Of Medicine, 1983
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 449 in New York → Look up another NPI →
Also registered at 1 Theall RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Diane Alesi, O.D.Optometrist1891730990
- Lisa Anthony, M.D.Dermatology Physician1407177553
- Jeffrey Barr, MDDermatology Physician1871756908
- Joseph Batac, MDPlastic and Reconstructive Surgery Physician1245541382
- Annette Bond, MDMaternal & Fetal Medicine Physician1467453159
- George Boutis, MDInternal Medicine Physician1891956769
Verify Daniel Eric Fass 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 1611931Check 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 radiation oncology physician in 2024
47 Medicare Part D claims for 21 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Tamsulosin Hcl45 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.
Industry payments in 2024: $145.58
2 payments; by number, the most common kind was food and beverage; the largest payer was Progenics Pharmaceuticals, Inc. The 3,275 providers of this specialty with any payment received $1,897.85 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Roger Williams Radiation Therapy LLCProvidence, RI
- Southern New England Regional Cancer Center, LLCWoonsocket, RI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Daniel Eric Fass among 449 radiation oncology physician records in New York
Daniel Eric Fass, M.D. is one of 449 radiation 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 2006, is newer than 14% of them.
- NPI issued2006 · 14% of these records are older, 53% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated1983 · median 2005 among the 331 with a school on file
- Record last updated2013 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0001X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Radiation Oncology Physician providers in New York
There are 449 radiation oncology physician records in New York.
All 449 in New York → Every provider in Rye → Radiation Oncology Physician nationwide →
The 8 radiation oncology physician records with the nearest ZIP codes
- Niti Dube, MDRye, NY 105801629289277
- Rajni Singh, D.O.Rye, NY 105801972746816
- Boris Mueller, MDSleepy Hollow, NY 105911205816451
- Borys Mychalczak, MDSleepy Hollow, NY 105911932189180
- Aishwarya Shah, MDCortlandt Manor, NY 105671750965125
- Aviva Berkowitz, M.D.Valhalla, NY 105951801277405
- Edward Halperin, M.D.Valhalla, NY 105951821184268
- Mark Hurwitz, M.D.Valhalla, NY 105951891751046
Common questions
What is Daniel Eric Fass, M.D.'s NPI number?
Daniel Eric Fass, M.D.'s National Provider Identifier (NPI) is 1215049184, issued on Aug 31, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Daniel Eric Fass, M.D. located?
The NPPES record lists a practice address at 1 Theall RD, Rye, NY, 10580. Phone: (914) 848-8950. Providers update this record themselves, so call before visiting.
How can I verify Daniel Eric Fass, M.D.'s license?
NPPES lists New York license number 1611931, 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 Daniel Eric Fass, M.D. prescribe under Medicare Part D?
In 2024, Daniel Eric Fass, M.D. had 47 Medicare Part D claims for 21 beneficiaries; the average among radiation oncology physician prescribers was 134. 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.