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Brennan Geriatric Medicine PC

Q: What type of organization is Brennan Geriatric Medicine PC?

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

Geriatric Medicine (Internal Medicine) Physician in Glen Allen, VA · enumerated 2016 · authorized official Sirisha Brennan, President.

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

National Provider Identifier

1265899124

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Registry record

Entity type Organization (Type 2)

Legal business name Brennan Geriatric Medicine PC

Practice address 5717 Park Creste Dr, Glen Allen, VA, 23059

Phone (804) 426-2977

Fax (855) 392-9700

Enumeration date Jan 24, 2016

Last updated in NPPES Jul 29, 2016

Taxonomy & classification

207RG0300X Geriatric Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License 0101242464 (VA) Primary

Authorized official

Name Sirisha Brennan

Title President

Phone (804) 426-2977

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 Brennan Geriatric Medicine PC?

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

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-07-29.