Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Internal Medicine Associates of Union, P.C.

Internal Medicine Physician in Watchung, NJ · enumerated 2006 · authorized official Patricia Barsanti, Ownerphysician.

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

National Provider Identifier

1073671772

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Registry record

Entity type Organization (Type 2)

Legal business name Internal Medicine Associates of Union, P.C.

Practice address 10 Shawnee Dr, Suite 3, Watchung, NJ, 07069

Phone (908) 755-5400

Fax (908) 755-6979

Enumeration date Dec 5, 2006

Last updated in NPPES Aug 22, 2020

Taxonomy & classification

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 25MB07478500 (NJ) Primary

Authorized official

Name Patricia Barsanti

Title Ownerphysician

Phone (908) 755-5400

Other identifiers

Identifier	Type	State	Issuer
0102687	Medicaid	NJ	-

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.

Read the full guide → Validate an NPI →

Frequently asked questions

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.

What type of organization is Internal Medicine Associates of Union, P.C.?

Internal Medicine Associates of Union, P.C. is registered in NPPES as a Internal Medicine Physician (its primary provider taxonomy).

Providers at this address

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Paul Hadley Optometrist · Watchung, NJ NPI 1619936648 Ronald Sheppard Foot & Ankle Surgery Podiatrist · Watchung, NJ NPI 1679589261 Patricia Barsanti Internal Medicine Physician · Watchung, NJ NPI 1699859371 Michelle Sabater-Weddle Dentist · Watchung, NJ NPI 1063581700 Great Smiles of New Jersey LLC General Practice Dentistry · Watchung, NJ NPI 1477622140 Ronald Howard Sheppard D Durable Medical Equipment & Medical Supplies · Watchung, NJ NPI 1073790465 Jersey Shore Foot and Leg Cent Foot & Ankle Surgery Podiatrist · Watchung, NJ NPI 1265688774 Laura Stemmler Clinical Social Worker · Watchung, NJ NPI 1629437884

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-08-22.