Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Allan M. Weinstein, MD PC

Q: What is the NPI number for Allan M. Weinstein, MD PC?

The NPI for Allan M. Weinstein, MD PC is 1972783009, a Type 2 (organization) record in the CMS NPPES registry.

Specialist in Washington, DC · enumerated 2007 · authorized official Lucy Seifert, Office Manager.

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

National Provider Identifier

1972783009

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Registry record

Entity type Organization (Type 2)

Legal business name Allan M. Weinstein, MD PC

Practice address 3301 New Mexico Ave Nw, #302, Washington, DC, 20016

Phone (202) 966-2222

Fax (202) 686-7079

Enumeration date Nov 6, 2007

Last updated in NPPES Dec 18, 2007

Taxonomy & classification

174400000X Specialist Other Service Providers Primary

Authorized official

Name Lucy Seifert

Title Office Manager

Phone (202) 966-2222

Other identifiers

Identifier	Type	State	Issuer
G00211	Other	DC	MEDICARE GROUP NUMBER

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

Who is the authorized official for Allan M. Weinstein, MD PC?

NPPES lists Lucy Seifert (Office Manager) as the authorized official for this organization.

What is the NPI number for Allan M. Weinstein, MD PC?

The NPI for Allan M. Weinstein, MD PC is 1972783009, a Type 2 (organization) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-12-18.