Ronald J. Grossman, MD
Internal Medicine Physician · New York, NY
Ronald J. Grossman, MD is an internal medicine physician with a practice address in New York, New York, and NPI 1720114853, issued on Feb 25, 2007. Check the license (New York 105739, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Ronald J. Grossman
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 105739 NY
Self-reported in NPPES; status is on the state search - Practice location
- 240 Central S Park 2R, New York, NY 10019
- Phone
- (212) 818-0853
- Enumerated
- Feb 25, 2007
- Record last updated
- Dec 20, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (212) 265-0217
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 12,067 in New York → Look up another NPI →
Verify Ronald J. Grossman 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 105739Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
70% fewer Medicare Part D claims than the average internal medicine physician in 2024
963 Medicare Part D claims for 52 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium100 claims
- Biktarvy98 claims
- Ezetimibe51 claims
- Nebivolol Hcl28 claims
- Febuxostat26 claims
- Valacyclovir24 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: $50.71
1 payment: food and beverage; the largest payer was Philips North America LLC. 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.
Ronald J. Grossman among 12,067 internal medicine physician records in New York
Ronald J. Grossman, MD 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 2007, is newer than 47% of them.
- NPI issued2007 · 47% of these records are older, 44% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 60% of these records are
- Record last updated2015 · 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).
2,434 internal medicine physician records list a practice address in New York
They are 2,434 of the 98,468 NPPES records with a practice address in New York, and 12,067 internal medicine physician records in New York.
All 12,067 in New York → Every provider in New York → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
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- David Kamlet, M.D.New York, NY 100191205839917
- Yelena Karasina, MDNew York, NY 100191326022666
- Steven Katz, MDNew York, NY 100191801871066
- John Lupiano, MDNew York, NY 100191881634954
- Martin Malachovsky, M.D, M.P.HNew York, NY 100191568402261
- Susan Minkowitz, M.D.New York, NY 100191487651238
Common questions
What is Ronald J. Grossman, MD's NPI number?
Ronald J. Grossman, MD's National Provider Identifier (NPI) is 1720114853, issued on Feb 25, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Ronald J. Grossman, MD located?
The NPPES record lists a practice address at 240 Central S Park 2R, New York, NY, 10019. Phone: (212) 818-0853. Providers update this record themselves, so call before visiting.
How can I verify Ronald J. Grossman, MD's license?
NPPES lists New York license number 105739, 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 Ronald J. Grossman, MD prescribe under Medicare Part D?
In 2024, Ronald J. Grossman, MD had 963 Medicare Part D claims for 52 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.