Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Melrose Internal Medicine Assoc PC

Internal Medicine Physician in Melrose, MA · enumerated 2005 · authorized official Sandra Criss, Attorney/Business.

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

National Provider Identifier

1629055538

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Registry record

Entity type Organization (Type 2)

Legal business name Melrose Internal Medicine Assoc PC

Practice address 50 Rowe St, Suite 500, Melrose, MA, 02176

Phone (781) 979-3800

Fax (781) 662-2778

Enumeration date Dec 30, 2005

Last updated in NPPES Jan 16, 2025

Taxonomy & classification

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Sandra Criss

Title Attorney/Business

Phone (617) 281-4119

Other identifiers

Identifier	Type	State	Issuer
702274	Other	MA	TUFTS
9702156	Medicaid	MA	-
CE3073	Other	MA	RAILROAD MEDICARE

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 Melrose Internal Medicine Assoc PC?

Melrose Internal Medicine Assoc PC is registered in NPPES as a Internal Medicine Physician (its primary provider taxonomy).

Providers at this address

Browse all →

Josee Laplante Obstetrics & Gynecology Physician · Melrose, MA NPI 1265426878 Elizabeth Bettencourt Obstetrics & Gynecology Physician · Melrose, MA NPI 1366436974 Susan Shnidman Psychologist · Melrose, MA NPI 1689659500 David Criss Cardiovascular Disease Physician · Melrose, MA NPI 1437135779 Neal Nadelson Internal Medicine Physician · Melrose, MA NPI 1427035948 Allen Criss Cardiovascular Disease Physician · Melrose, MA NPI 1336126853 Carl Turissini Interventional Cardiology Physician · Melrose, MA NPI 1609840990 Alfonso Serrano Vascular Surgery Physician · Melrose, MA NPI 1558320929

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-01-16.