Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Tobin S Naidorf MD Pllc

Specialist in Alexandria, VA · enumerated 2007 · authorized official Tobin Naidorf, Proprietor.

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

National Provider Identifier

1164644779

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Registry record

Entity type Organization (Type 2)

Legal business name Tobin S Naidorf MD Pllc

Practice address 7910 Andrus Rd, #6, Alexandria, VA, 22306

Phone (703) 799-1688

Fax (703) 799-4092

Enumeration date May 3, 2007

Last updated in NPPES May 3, 2011

Taxonomy & classification

174400000X Specialist Other Service Providers · License 0101043875 (VA) Primary

Authorized official

Name Tobin Naidorf

Title Proprietor

Phone (703) 799-1688

Other identifiers

Identifier	Type	State	Issuer
1457306318	Other	VA	NPI
006043003	Medicaid	VA	-
181852	Other	VA	PTAN

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

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2011-05-03. Verify at npiregistry.cms.hhs.gov.

Where is Tobin S Naidorf MD Pllc located?

The practice location on file with NPPES is in Alexandria, VA.

Providers at this address

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John Klousia Urology Physician · Alexandria, VA NPI 1063491603 John W Klousia MD PC Urology Physician · Alexandria, VA NPI 1669778080

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-05-03.