Ahsan Siddiqi, MD

Medicare activity in 2024

Official CMS public-use data for Ahsan Siddiqi, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Most frequent services

1. Pathology examination of tissue using a microscope, intermediate complexity (88305)187 services
2. Special stained specimen slides to examine tissue, each additional procedure (88341)55 services
3. Surgical pathology consultation and report on referred slides prepared elsewhere (88321)48 services
4. Special stained specimen slides to identify organisms including interpretation and report (88312)39 services
5. Special stained specimen slides to examine tissue, initial procedure (88342)34 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

• High blood pressure75%
• High cholesterol75%
• Arthritis48%
• Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)41%
• Diabetes40%
• Chronic kidney disease39%

Hospitals where Ahsan Siddiqi works

Medicare's Facility Affiliation Data lists Ahsan Siddiqi at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

• HCA Houston Healthcare KingwoodKingwood, TX · Acute Care Hospital · Medicare rating: 3 of 5 stars · CCN 450775
• Methodist HospitalSan Antonio, TX · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 450388

Practice locations

Addresses where Ahsan Siddiqi is enrolled with Medicare (CMS data updated October 2, 2026).

• 4000 Spencer HwyPasadena, TX 77504 (713) 359‑1600
• 500 W Medical Ctr BlvdWebster, TX 77598 (281) 338‑3208
• 7700 Floyd Curl DrSan Antonio, TX 78229 (210) 558‑6288

Group practices

Medicare enrollment lists Ahsan Siddiqi as a member of these groups (CMS data updated October 2, 2026).

• Gulf Coast Pathology Program PLLC36 clinicians in the group
• South Texas Pathology Associates LLP25 clinicians in the group

Specialties

• Pathologyprimary

Find other Pathology doctors in Texas →

Other pathologists in Pasadena

Clinicians with the same Medicare primary specialty in Pasadena, TX — not a recommendation.

• Crystal J. Trujillo, MD
• Bharati S. Helekar, MD
• Peter A. Powaser, MD
• Jabeen F. Naqvi, MD

All pathologists in Pasadena →

Other clinicians in Gulf Coast Pathology Program PLLC

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

• Hula Taha, MD
• David N. Rundell, DO
• Warda Ibrar, MD
• John G. Buck, MD
• Crystal J. Trujillo, MD
• Hongbo Wang, MD

Clinician information

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
6. Medicare Care Compare — official Medicare tool to look up clinicians