Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Ronald J. Grossman, MD

Individual provider Internal Medicine Physician · NPI 1720114853

Dr. Ronald J. Grossman, MD is an Internal Medicine Physician in New York, New York. Practices as a sole proprietor. Licensed in New York.

Licensed in
NY
In the registry since
2007
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

240 Central S Park 2R
New York, NY 10019-1435 Not confirmed with CMS for 10 years — call before visiting
Phone: (212) 818-0853
Fax: (212) 265-0217
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 105739 (NY)

Record details

NPI number1720114853
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedFebruary 25, 2007
Last updated in NPPESDecember 20, 2015

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients28
Services billed 72 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

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