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Medical Research Associates,PC

Internal Medicine Physician in Valhalla, NY · enumerated 2006 · authorized official William Frishman, Chairman.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1801841895

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Registry record

Entity type Organization (Type 2)
Legal business name Medical Research Associates,PC
Other name <Unavail>
Practice address 95 Grasslands Rd, Dept of Medicine-Munger Pavilion, Valhalla, NY, 10595
Phone (914) 594-4388
Fax (914) 594-4434
Enumeration date May 24, 2006
Last updated in NPPES Mar 21, 2008

Taxonomy & classification

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians Primary
207RA0201X Allergy & Immunology (Internal Medicine) Physician Allopathic & Osteopathic Physicians Secondary
207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians Secondary
207RE0101X Endocrinology, Diabetes & Metabolism Physician Allopathic & Osteopathic Physicians Secondary
207RH0000X Hematology (Internal Medicine) Physician Allopathic & Osteopathic Physicians Secondary
207RI0200X Infectious Disease Physician Allopathic & Osteopathic Physicians Secondary
207RP1001X Pulmonary Disease Physician Allopathic & Osteopathic Physicians Secondary
207RR0500X Rheumatology Physician Allopathic & Osteopathic Physicians Secondary

Authorized official

Name William Frishman
Title Chairman
Phone (914) 594-4388

Other identifiers

Identifier Type State Issuer
0492324 Other NY AETNA HMO GROUP #
CA0199 Other NY RAILROAD MEDICARE GROUP #
5199477 Other NY AETNA PPO GROUP #

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

What type of organization is Medical Research Associates,PC?
Medical Research Associates,PC is registered in NPPES as a Internal Medicine Physician (its primary provider taxonomy).
What is a Type 2 NPI?
A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-03-21.