LONE STAR OB/GYN ASSOCIATES, P.A.
NPI 1063441921
Obstetrics & Gynecology in San Antonio, TX
About Lone Star Ob/gyn Associates, P.a. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
LONE STAR OB/GYN ASSOCIATES, P.A. (NPI 1063441921) is a healthcare organization registered as an obstetrics & gynecology in San Antonio, Texas and active in the NPI registry since July 2006. The organization holds a CLIA Microscopy certificate valid through April 2, 2028 and lists Patrick L Williamson, President, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
Group Practice 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Lone Star Ob/gyn Associates, P.a. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
64Medicare enrollment records show 64 clinicians reassign Medicare billing to Lone Star Ob/Gyn Associates, P.A., which bills Medicare for the services they deliver. Of these, 12 practice at this address and 32 within 10 miles. Listed here are the 20 practicing nearest to this location.
Clinicians by Medicare Specialty 2
Nearest to this location (20)
See all 64San Antonio, TX 76229
San Antonio, TX 78229
San Antonio, TX 78229
San Antonio, TX 78229
San Antonio, TX 78229
San Antonio, TX 78229
San Antonio, TX 78229
San Antonio, TX 78229
San Antonio, TX 78229
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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) 45D0913550
Lone Star Ob/Gyn Associates · San Antonio, TXFrequently 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 Lone Star Ob/Gyn Associates, P.A.'s NPI number?
The NPI number for Lone Star Ob/Gyn Associates, P.A. is 1063441921. It was assigned to this organization in the NPPES registry on July 2, 2006.
Where is Lone Star Ob/Gyn Associates, P.A. located?
Lone Star Ob/Gyn Associates, P.A. is located at 7950 Floyd Curl Dr Suite 300 & 400, San Antonio, TX 78229. The listed phone number is (210) 615-6505.
What is Lone Star Ob/Gyn Associates, P.A.'s specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Lone Star Ob/Gyn Associates, P.A. enrolled in Medicare?
Yes. Lone Star Ob/Gyn Associates, P.A. is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Lone Star Ob/Gyn Associates, P.A.?
According to the CMS Revalidation Reassignment List (October 2026 release), 64 clinicians in 2 Medicare specialties reassign their Medicare billing to Lone Star Ob/Gyn Associates, P.A.. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. The largest specialties are Obstetrics/Gynecology (61) and Certified Nurse Midwife (CNM) (3). Of these, 12 practice at this address and 32 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Does Lone Star Ob/Gyn Associates, P.A. hold a CLIA laboratory certificate?
Yes. A Certificate for Provider-Performed Microscopy Procedures (PPMP) (number 45D0913550) is associated with this NPI, valid through April 2, 2028. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.
What insurance does Lone Star Ob/Gyn Associates, P.A. accept?
Health plans from Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Superior HealthPlan and Ambetter of Oklahoma and 2 other insurers list Lone Star Ob/Gyn Associates, P.A. as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Lone Star Ob/Gyn Associates, P.A. was last updated on July 19, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 years 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.