NPI Portal NPI Lookup & Verification

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Lee W Haak, MD

Family Medicine Physician in Grapevine, TX · enumerated 2005 · practices at Vista Rehab Partners, Lp.

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

National Provider Identifier

1104803923

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Registry record

Entity type Individual (Type 1)
Name Lee W Haak
Credential MD
Sex Male
Practice address 5301 William D Tate Ave, Grapevine, TX, 76051
Fax (817) 421-5041
Enumeration date Dec 22, 2005
Last updated in NPPES Apr 30, 2025

Taxonomy & licenses

208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License L2296 (TX) Secondary
207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License L2296 (TX) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
740054 Other TX MEDICARE
146776321 Medicaid TX -
146776307 Medicaid TX -

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.

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Frequently asked questions

Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Lee Haak?
Lee Haak is registered in NPPES with the primary taxonomy of Family Medicine Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-04-30.