Keith A. Meritz, MD
Radiation Oncology Physician · Valhalla, NY
Keith A. Meritz, MD is a radiation oncology physician with a practice address in Valhalla, New York, and NPI 1801956974, issued on Dec 11, 2006. Check the license (New York 159026, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Keith A. Meritz
- Credential
- MD
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License numbers
- 159026 NY
25MA05601300 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 100 Woods RD Ste 1297, Valhalla, NY 10595
- Phone
- (201) 388-9766
- Enumerated
- Dec 11, 2006
- Record last updated
- Jan 10, 2022
- Medicare enrollment
- Enrolled (PECOS I20080114000067); accepts Medicare assignment
- Medical or professional school
- Medical College Of Pennsylvania, 1983
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 449 in New York → Look up another NPI →
Verify Keith A. Meritz 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 159026Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Westchester Medical Center Advanced Physician Services PCValhalla, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Keith A. Meritz among 449 radiation oncology physician records in New York
Keith A. Meritz, MD 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 updated2022 · 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 Valhalla → Radiation Oncology Physician nationwide →
The 8 radiation oncology physician records with the nearest ZIP codes
- Aviva Berkowitz, M.D.Valhalla, NY 105951801277405
- Edward Halperin, M.D.Valhalla, NY 105951821184268
- Mark Hurwitz, M.D.Valhalla, NY 105951891751046
- Nagwa Saleh, M.D.Valhalla, NY 105951265436802
- Rohil ShekherValhalla, NY 105951831652270
- Boris Mueller, MDSleepy Hollow, NY 105911205816451
- Borys Mychalczak, MDSleepy Hollow, NY 105911932189180
- Nabil Arslan, M.D.White Plains, NY 106011154415735
Common questions
What is Keith A. Meritz, MD's NPI number?
Keith A. Meritz, MD's National Provider Identifier (NPI) is 1801956974, issued on Dec 11, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Keith A. Meritz, MD located?
The NPPES record lists a practice address at 100 Woods RD Ste 1297, Valhalla, NY, 10595. Phone: (201) 388-9766. Providers update this record themselves, so call before visiting.
How can I verify Keith A. Meritz, MD's license?
NPPES lists New York license number 159026, 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.
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.