Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Alexandra Hammerquist, MD

Obstetrics & Gynecology Physician in Houston, TX · enumerated 2020.

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

National Provider Identifier

1518581446

Verified

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Registry record

Entity type Individual (Type 1)

Name Alexandra Hammerquist

Credential MD

Sex Female

Practice address 1504 Taub Loop, Houston, TX, 77030

Phone (713) 873-8890

Enumeration date Jun 6, 2020

Last updated in NPPES Aug 8, 2024

Taxonomy & licenses

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians · License 2020014714 (MO) Secondary

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians · License U7685 (TX) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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 specialty is Alexandra Hammerquist?

Alexandra Hammerquist is registered in NPPES with the primary taxonomy of Obstetrics & Gynecology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-08-08.