NPI Portal NPI Lookup & Verification

Daniel I Tanenbaum MD PC

Daniel I Tanenbaum MD PC is a healthcare organization registered as Physical Medicine & Rehabilitation Physician in Worcester, MA, holding Type 2 (organization) NPI 1518156850 since 2007. The authorized official on file is Daniel Tanenbaum, MD PC Owner.

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NPI 1518156850
Entity type Organization (Type 2)
Legal business name Daniel I Tanenbaum MD PC
Practice address 189 MAY ST, Worcester, MA, 01602
Phone 5084719507
Fax 5088655226
Enumeration date 2007-10-23
Last updated in NPPES 2007-10-23

Authorized official

Name Daniel Tanenbaum
Title MD PC Owner
Phone 5084719507

Taxonomy & classification

Taxonomy code Specialty Primary License State
208100000X Physical Medicine & Rehabilitation Physician Primary 56412 MA

Other identifiers

Identifier Type State Issuer
3047067 Medicaid MA
Copy-ready billing details
Provider: Daniel I Tanenbaum MD PC
NPI: 1518156850
Taxonomy: 208100000X (Physical Medicine & Rehabilitation Physician)
Address: 189 MAY ST, Worcester, MA, 01602

Providers at this address

NPI Name Type Specialty Location
1316930142 Sheree Estes Individual Clinical Neuropsychologist Worcester, MA
1073501557 Ralph Brutus Individual Physical Medicine & Rehabilitation Physician Worcester, MA
1902889983 Vasanthi Arakali Individual Internal Medicine Physician Worcester, MA
1437132297 Howard Fixler Individual Internal Medicine Physician Worcester, MA
1952373193 Emily Lachiatto Individual Physician Assistant Worcester, MA
1225002983 New England Rehabilitation Services of Central Massachusetts Inc Organization Rehabilitation Hospital Worcester, MA
1578502662 Daniel Tanenbaum Individual Physical Medicine & Rehabilitation Physician Worcester, MA
1114951076 John Meyers Individual Psychiatry Physician Worcester, MA

Verify this record

Cross-check NPI 1518156850 against the authoritative CMS record: view Daniel I Tanenbaum MD PC on the official NPPES registry .

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 or validate an NPI number.

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 Daniel I Tanenbaum MD PC?
Daniel I Tanenbaum MD PC is registered in NPPES as a Physical Medicine & Rehabilitation Physician (its primary provider taxonomy).

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2007-10-23.