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ALEXANDER S. ROKA M.D. P.A.
NPI 1154569655
Family Medicine in San Antonio, TX

Active since January 22, 2009CLIA 45D2089441 · Waiver
20658 STONE OAK PKWY UNIT 108, SAN ANTONIO, TX 78258(210) 403-3220(210) 403-3221 Get Directions Write a Review

NPPES record last updated: April 2, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Apr 2, 2025, Jun 26, 2024 (2 updates tracked since 2024).

About Alexander S. Roka M.d. P.a. NPPES

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

ALEXANDER S. ROKA M.D. P.A. (NPI 1154569655) is a healthcare organization registered as a family medicine in San Antonio, Texas and active in the NPI registry since January 2009. The organization holds a CLIA Waiver certificate valid through December 29, 2026, maintains a secondary practice location in San Antonio, and lists James Ivy, Director Of Operations, as its authorized official.

NPPES Registry Identity

NPI1154569655
Entity TypeOrganization
Primary Taxonomy207Q00000X
Legal Business NameALEXANDER S. ROKA M.D. P.A.
Location Address20658 STONE OAK PKWY UNIT 108San Antonio, TX 78258-7361
Mailing Address20658 Stone Oak Pkwy Unit 108San Antonio, TX 78258-7361 · (210) 403-3220 · Fax (210) 403-3221
Phone(210) 403-3220
Fax(210) 403-3221
Organization SubpartNo
Authorized OfficialJames IvyDirector Of Operations · (210) 403-3220
Enumeration DateJanuary 22, 2009
Last NPPES UpdateApril 2, 20252 updates tracked since enumeration
NPPES CertifiedApril 2, 2025
✔ NPI 1154569655 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
20658 STONE OAK PKWY UNIT 108, San Antonio, TX 78258
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Secondary Practice Location 1

Location 17333 Barlite Blvd Ste 380San Antonio, TX 78224-1359 · Phone (210) 403-3220 · Fax (210) 403-3221

Other Identifiers 1

Other0009EJTX · Blue Cross Blue Shield

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

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Harbor Health.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, revalidation and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Alexander S. Roka M.d. P.a. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Revalidation Due Date

Revalidation due by February 28, 2027

Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.

StateEnrollment IDDue date
StateTexasEnrollment IDO20090619000300Non-DME Part B · Clinic/Group PracticeDue dateFebruary 28, 2027
Source: CMS Revalidation Due Date List, October 2026 release.

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Alexander S. Roka M.D. P.A., which bills Medicare for the services this clinician delivers.

Clinician (1)

Alexander Roka, M.D., P.A.
General Practice
NPI 1982602264
20658 STONE OAK PKWY STE. 108
San Antonio, TX 78258
(210) 403-3220
✔ PECOS✔ Accepts MedicareSame address

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 of Waiver 45D2089441

Alexander S Roka MD · San Antonio, TX
Active · expires Dec 29, 2026
CLIA Number45D2089441
Laboratory TypePhysician Office
Certificate Effective DateDecember 30, 2024
Certificate Expiration DateDecember 29, 2026
Laboratory DirectorAlexander S. Roka
Laboratory Phone(210) 921-0050
Laboratory LocationAlexander S Roka MD7333 Barlite Blvd, Suite 380, San Antonio, TX 78224
CLIA data matches this NPI record on: Address
This certificate is issued to a laboratory to perform only waived tests.

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 Alexander S. Roka M.D. P.A.'s NPI number?

The NPI number for Alexander S. Roka M.D. P.A. is 1154569655. It was assigned to this organization in the NPPES registry on January 22, 2009.

Where is Alexander S. Roka M.D. P.A. located?

Alexander S. Roka M.D. P.A. is located at 20658 Stone Oak Pkwy Unit 108, San Antonio, TX 78258. The listed phone number is (210) 403-3220.

What is Alexander S. Roka M.D. P.A.'s specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Alexander S. Roka M.D. P.A. enrolled in Medicare?

Yes. Alexander S. Roka M.D. P.A. is registered in the Medicare PECOS enrollment system.

When is Alexander S. Roka M.D. P.A.'s Medicare revalidation due?

According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Non-DME Part B enrollment for this organization (Texas, Clinic/Group Practice) is due for revalidation by February 28, 2027. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.

How many clinicians bill Medicare through Alexander S. Roka M.D. P.A.?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (General Practice) reassigns their Medicare billing to Alexander S. Roka M.D. 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. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Alexander S. Roka M.D. P.A. hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 45D2089441) is associated with this NPI, valid through December 29, 2026. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

What insurance does Alexander S. Roka M.D. P.A. accept?

Health plans from Harbor Health list Alexander S. Roka M.D. 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 Alexander S. Roka M.D. P.A. was last updated on April 2, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.