Jonathan Gamss, M.D.
Internal Medicine Physician · Mount Kisco, NY
Jonathan Gamss, M.D. is an internal medicine physician with a practice address in Mount Kisco, New York, and NPI 1598922874, issued on May 22, 2008. Check the license (New York 246486, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Jonathan Gamss
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 246486 NY
DR.0076561 CO
ME178297 FL
25MA08623200 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 400 E Main St, Mount Kisco, NY 10549
- Phone
- (914) 666-1680
- Enumerated
- May 22, 2008
- Record last updated
- Jun 11, 2026
- Fax
- (914) 666-1965
- Medicaid ID
- 03040282 NY
- Medicare enrollment
- Enrolled (PECOS I20100325000556); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 12,067 in New York → Look up another NPI →
Also registered at 400 E Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Neha Aggarwal, PHYSICIAN ASSISTANTPhysician Assistant1710318696
- Sameer AhmadStudent in an Organized Health Care Education/Training Program1770422172
- Ashitha AlexStudent in an Organized Health Care Education/Training Program1609715226
- Emmanuel Snr Amoateng, MDStudent in an Organized Health Care Education/Training Program1871353342
- Nandini Anandu, MDInternal Medicine Physician1023056678
Verify Jonathan Gamss 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 246486Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average internal medicine physician in 2024
258 Medicare Part D claims for 123 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims.
Most prescribed
- Famotidine16 claims
- Amlodipine Besylate13 claims
- Albuterol Sulfate Hfa12 claims
- Metoprolol Succinate12 claims
- Azithromycin11 claims
- Cefdinir11 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: $441.11
19 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 50,334 providers of this specialty with any payment received $1,303.06 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
- Rwjbh Emergency Medicine Associates, LLCBelleville, NJ
- Vladimir Zelenko MD PCMonroe, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jonathan Gamss among 12,067 internal medicine physician records in New York
Jonathan Gamss, M.D. is one of 12,067 internal medicine physician records with a practice address in New York. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 56% of them.
- NPI issued2008 · 56% of these records are older, 40% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2004 · median 2002 among the 7,221 with a school on file
- Record last updated2026 · 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 207R00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
43 internal medicine physician records list a practice address in Mount Kisco
They are 43 of the 1,003 NPPES records with a practice address in Mount Kisco, and 12,067 internal medicine physician records in New York.
All 12,067 in New York → Every provider in Mount Kisco → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Barbara Alpert, MDMount Kisco, NY 105491194775536
- Alphonse Aversa, MDMount Kisco, NY 105491053361378
- Lisa Bardack, MDMount Kisco, NY 105491669421053
- Bernadette Davis, MDMount Kisco, NY 105491942253323
- Paul Kandel, MDMount Kisco, NY 105491013960194
- Marla Koroly, MDMount Kisco, NY 105491780677336
- Sharon Krieger, MDMount Kisco, NY 105491255386710
- Peter Levi, MDMount Kisco, NY 105491629064217
Common questions
What is Jonathan Gamss, M.D.'s NPI number?
Jonathan Gamss, M.D.'s National Provider Identifier (NPI) is 1598922874, issued on May 22, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Jonathan Gamss, M.D. located?
The NPPES record lists a practice address at 400 E Main St, Mount Kisco, NY, 10549. Phone: (914) 666-1680. Providers update this record themselves, so call before visiting.
How can I verify Jonathan Gamss, M.D.'s license?
NPPES lists New York license number 246486, 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 Jonathan Gamss, M.D. prescribe under Medicare Part D?
In 2024, Jonathan Gamss, M.D. had 258 Medicare Part D claims for 123 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.