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South Nassau Internal Medicine Associates, LLP

Endocrinology, Diabetes & Metabolism Physician in Freeport, NY · enumerated 2007 · authorized official Barbara Martin, Office Administrator.

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

National Provider Identifier

1508045279

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Registry record

Entity type Organization (Type 2)
Legal business name South Nassau Internal Medicine Associates, LLP
Practice address 155 W Merrick Rd, Suite 101, Freeport, NY, 11520
Phone (516) 379-3139
Fax (516) 868-0683
Enumeration date Oct 30, 2007
Last updated in NPPES Oct 31, 2007

Taxonomy & classification

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 164466 (NY) Secondary
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License F46077 (NY) Secondary
207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians · License 149408 (NY) Secondary
207RE0101X Endocrinology, Diabetes & Metabolism Physician Allopathic & Osteopathic Physicians · License 112891 (NY) Primary
363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 0107171 (NY) Secondary
363LA2200X Adult Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License F3019041 (NY) Secondary

Authorized official

Name Barbara Martin
Title Office Administrator
Phone (516) 379-3139

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

Who is the authorized official for South Nassau Internal Medicine Associates, LLP?
NPPES lists Barbara Martin (Office Administrator) as the authorized official for this organization.
What is the NPI number for South Nassau Internal Medicine Associates, LLP?
The NPI for South Nassau Internal Medicine Associates, LLP is 1508045279, a Type 2 (organization) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-10-31.