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AMERICAN ONCOLOGY PARTNERS, P.A.
NPI 1124916606
Internal Medicine - Hematology & Oncology in Georgetown, TX

Active since June 25, 2025CLIA Certified · 2 labs
3201 S AUSTIN AVE STE 315, GEORGETOWN, TX 78626(512) 358-9428(737) 710-1920 Get Directions Write a Review

NPPES record last updated: June 25, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About American Oncology Partners, P.a. NPPES

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

AMERICAN ONCOLOGY PARTNERS, P.A. (NPI 1124916606), doing business as Lone Star Oncology, is a healthcare organization registered as a hematology & oncology in Georgetown, Texas and active in the NPI registry since June 2025. The organization holds 2 active CLIA laboratory certificates and lists Ryan K Olson, Owner/president, as its authorized official.

NPPES Registry Identity

NPI1124916606
Entity TypeOrganization
Primary Taxonomy207RH0003X
Legal Business NameAMERICAN ONCOLOGY PARTNERS, P.A.
Location Address3201 S AUSTIN AVE STE 315Georgetown, TX 78626-7642
Mailing AddressPo Box 749495Atlanta, GA 30374-9495 · (855) 963-2100 · Fax (813) 321-1296
Phone(512) 358-9428
Fax(737) 710-1920
Organization SubpartNo
Authorized OfficialRyan K OlsonOwner/president · (239) 561-9622
Enumeration DateJune 25, 2025
NPPES CertifiedJune 25, 2025
✔ NPI 1124916606 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RH0003X
Definition
An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.
Also ListedInternal Medicine · HematologyTaxonomy 207RH0000X
Also ListedInternal Medicine · Medical OncologyTaxonomy 207RX0202X
3201 S AUSTIN AVE STE 315, Georgetown, TX 78626
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Other Names 1

Doing Business AsLone Star Oncology

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

CLIA Laboratory Certificates CMS CLIA 2

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 of Accreditation 45D2065485

American Oncology Partners, PA Dba Lone Star Oncology · Georgetown, TX
Active · expires Oct 13, 2027
CLIA Number45D2065485
Laboratory TypePhysician Office
Certificate Effective DateOctober 14, 2025
Certificate Expiration DateOctober 13, 2027
Laboratory DirectorBrian Shimkus
Laboratory Phone(512) 358-9428
Laboratory LocationAmerican Oncology Partners, PA Dba Lone Star Oncology3201 S Austin Ave, Suite 315, Georgetown, TX 78626
CLIA data matches this NPI record on: Address Name Phone
This is a certificate that is issued to a laboratory on the basis of the laboratory's accreditation by an accreditation organization approved by CMS.

Certificate of Accreditation 45D2336614

American Oncology Partners, PA Dba Lone Star Oncology · Kyle, TX
Active · expires Jan 6, 2028
CLIA Number45D2336614
Laboratory TypePhysician Office
Certificate Effective DateJanuary 7, 2026
Certificate Expiration DateJanuary 6, 2028
Laboratory DirectorDr. Brian J. Shimkus
Laboratory Phone(512) 358-9428
Laboratory LocationAmerican Oncology Partners, PA Dba Lone Star Oncology1180 Seton Pkwy., Suite 150, Kyle, TX 78640
CLIA data matches this NPI record on: Name Phone
This is a certificate that is issued to a laboratory on the basis of the laboratory's accreditation by an accreditation organization approved by CMS.

Other Providers at the Same Location NPPES 3

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

RHONDA SUE CAMPBELL PA-C
Physician Assistant
3201 S AUSTIN AVE STE 315
GEORGETOWN, TX 78626
Williamson County (512) 358-9428
DR. DERRICK DUONG NGUYEN MD
Internal Medicine (Medical Oncology)
3201 S AUSTIN AVE STE 315
GEORGETOWN, TX 78626
Williamson County (512) 358-9428
BRIAN JAY SHIMKUS MD
Internal Medicine (Medical Oncology)
3201 S AUSTIN AVE STE 315
GEORGETOWN, TX 78626
Williamson County (512) 358-9428

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 American Oncology Partners, P.A.'s NPI number?

The NPI number for American Oncology Partners, P.A. is 1124916606. It was assigned to this organization in the NPPES registry on June 25, 2025. The provider is doing business as Lone Star Oncology.

Where is American Oncology Partners, P.A. located?

American Oncology Partners, P.A. is located at 3201 S Austin Ave Ste 315, Georgetown, TX 78626. The listed phone number is (512) 358-9428.

What is American Oncology Partners, P.A.'s specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

Does American Oncology Partners, P.A. hold CLIA laboratory certificates?

Yes. 2 active CLIA laboratory certificates are associated with this NPI under the federal Clinical Laboratory Improvement Amendments program. The certificates are listed in the CLIA Laboratory Certificates section above.

When was this NPI record last updated?

The NPPES record for American Oncology Partners, P.A. was last updated on June 25, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.