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Mark Russell MD PC

Q: What type of organization is Mark Russell MD PC?

Mark Russell MD PC is registered in NPPES as a Internal Medicine Physician (its primary provider taxonomy).

Internal Medicine Physician in Brooklyn, NY · enumerated 2006 · authorized official Mark Russell, President.

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

National Provider Identifier

1184668295

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Registry record

Entity type Organization (Type 2)

Legal business name Mark Russell MD PC

Practice address 61 Marine Ave, Brooklyn, NY, 11209

Phone (917) 362-4263

Enumeration date Jun 16, 2006

Last updated in NPPES Aug 22, 2020

Taxonomy & classification

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Mark Russell

Title President

Phone (917) 362-4263

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 type of organization is Mark Russell MD PC?

Mark Russell MD 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 2020-08-22.