NPI Portal NPI Lookup & Verification

Nancy G Marquez, M.D.

Nancy G Marquez is a Surgery Physician provider (Surgery) practicing in Austin, TX, registered in the NPPES registry with NPI 1912986803 since 2006. The credential MD stands for Doctor of Medicine. Practices at Capital Surgeons Group, Pllc (listed at the same practice address in NPPES).

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NPI 1912986803
Entity type Individual (Type 1)
Name Nancy G Marquez
Credential M.D.
Sex Female
Practice address 3705 MEDICAL PKWY STE 250, Austin, TX, 78705
Phone 5123021210
Fax 5124519752
Enumeration date 2006-01-10
Last updated in NPPES 2021-02-03

Taxonomy & licenses

Taxonomy code Specialty Primary License State
208600000X Surgery Physician Primary H2562 TX

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

Copy-ready billing details
Provider: Nancy Marquez, M.D.
NPI: 1912986803
Taxonomy: 208600000X (Surgery Physician)
Address: 3705 MEDICAL PKWY STE 250, Austin, TX, 78705

Other providers at this practice address

NPI Name Type Specialty Location
1093711012 Jack Walzel Individual Surgery Physician Austin, TX
1114906070 Tim Faulkenberry Individual Surgery Physician Austin, TX
1932188711 Steven Fass Individual Surgery Physician Austin, TX
1730152448 Eric Acheson Individual Surgery Physician Austin, TX
1891745592 Capital Surgeons Group, Pllc Organization Surgery Physician Austin, TX
1518157031 Romeo Lainez Individual Surgery Physician Austin, TX
1215110440 Erik Lough Individual Surgery Physician Austin, TX
1396064952 Roy Lirov Individual Surgery Physician Austin, TX

Verify this record

Cross-check NPI 1912986803 against the authoritative CMS record: view Nancy G Marquez on the official NPPES registry .

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 or validate an NPI number.

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 Nancy Marquez?
Nancy Marquez is registered in NPPES with the primary taxonomy of Surgery Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2021-02-03.