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AUSTIN OB-GYN ASSOCIATES PA
NPI 1235399478
Obstetrics & Gynecology in Austin, TX

Active since June 11, 2008CLIA 45D2269070 · Microscopy
2911 MEDICAL ARTS ST, BLDG 3, AUSTIN, TX 78705(512) 391-0175(512) 476-4078 Get Directions Write a Review

NPPES record last updated: November 4, 2009. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Austin Ob-gyn Associates Pa NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

AUSTIN OB-GYN ASSOCIATES PA (NPI 1235399478) is a healthcare organization registered as an obstetrics & gynecology in Austin, Texas and active in the NPI registry since June 2008. The organization holds a CLIA Microscopy certificate valid through September 19, 2026 and lists Melissa Guzman Winn, Owner / Provider, as its authorized official.

NPPES Registry Identity

NPI1235399478
Entity TypeOrganization
Primary Taxonomy207V00000X
Legal Business NameAUSTIN OB-GYN ASSOCIATES PA
Location Address2911 MEDICAL ARTS ST, BLDG 3Austin, TX 78705-3376
Mailing Address2911 Medical Arts St, Bldg 3Austin, TX 78705-3376 · (512) 391-0175 · Fax (512) 476-4078
Phone(512) 391-0175
Fax(512) 476-4078
Organization SubpartNo
Authorized OfficialMelissa Guzman WinnOwner / Provider · (512) 391-0175
Enumeration DateJune 11, 2008
Last NPPES UpdateNovember 4, 2009
✔ NPI 1235399478 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
License✔ Licensed in TX · K7752
Definition
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.
2911 MEDICAL ARTS ST, Austin, TX 78705
Open in Google Maps ↗

Other Identifiers 1

Medicare PIN00W029

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate for Provider-Performed Microscopy Procedures (PPMP) 45D2269070

Austin Obgyn Associates, PLLC · Austin, TX
Active · expires Sep 19, 2026
CLIA Number45D2269070
Laboratory TypePhysician Office
Certificate Effective DateSeptember 20, 2024
Certificate Expiration DateSeptember 19, 2026
Laboratory DirectorChristie S. Mileur
Laboratory Phone(512) 391-0175
Laboratory LocationAustin Obgyn Associates, PLLC2911 Medical Arts Bldgs 2 & 3, Austin, TX 78705
CLIA data matches this NPI record on: Phone
This certificate is issued to a laboratory in which a physician, midlevel practitioner or dentist performs no tests other than the microscopy procedures. This certificate permits the laboratory to also perform waived tests.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

CHARLIE P ROSS MD
Surgery
2911 MEDICAL ARTS ST, BLDG 2 ATTN: AUSTIN SURGICAL CLINIC ASSN
AUSTIN, TX 78705
Travis County (512) 478-3402
MELISSA GUZMAN WINN MD
Obstetrics & Gynecology
2911 MEDICAL ARTS ST, BUILDING 3
AUSTIN, TX 78705
Travis County (512) 391-0175
SRIDHAR PATLOLLA REDDY M.D.
Internal Medicine (Gastroenterology)
2911 MEDICAL ARTS ST, STE 9
AUSTIN, TX 78705
Travis County (512) 474-6321
YU-HAN VIRGINIA HU M.D.
Obstetrics & Gynecology
2911 MEDICAL ARTS ST, BLDG 3
AUSTIN, TX 78705
Travis County (512) 391-0175
R MICHELLE CHOUTEAU MD PA
Obstetrics & Gynecology
2911 MEDICAL ARTS ST, STE 19A
AUSTIN, TX 78705
Travis County (512) 477-1954
DR. CARLOS RUBIN DE CELIS MD
Internal Medicine (Medical Oncology)
2911 MEDICAL ARTS ST, SUITE 13
AUSTIN, TX 78705
Travis County (512) 478-9990
MRS. GERALDINE SADIE LANSANG NP
Nurse Practitioner (Primary Care)
2911 MEDICAL ARTS ST
AUSTIN, TX 78705
Travis County (866) 473-0663
CAROLINE COHEN PA
Obstetrics & Gynecology
2911 MEDICAL ARTS ST, SUITE 3
AUSTIN, TX 78705
Travis County (512) 391-0175

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Austin Ob-Gyn Associates PA's NPI number?

The NPI number for Austin Ob-Gyn Associates PA is 1235399478. It was assigned to this organization in the NPPES registry on June 11, 2008.

Where is Austin Ob-Gyn Associates PA located?

Austin Ob-Gyn Associates PA is located at 2911 Medical Arts St Bldg 3, Austin, TX 78705. The listed phone number is (512) 391-0175.

What is Austin Ob-Gyn Associates PA's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Does Austin Ob-Gyn Associates PA hold a CLIA laboratory certificate?

Yes. A Certificate for Provider-Performed Microscopy Procedures (PPMP) (number 45D2269070) is associated with this NPI, valid through September 19, 2026. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Austin Ob-Gyn Associates PA was last updated on November 4, 2009. NPI Profile syncs with the weekly NPPES data releases published by CMS.