Quick answers
- Does Syed A. Ahsan accept Medicare assignment?
- Yes. Medicare's clinician data says Syed A. Ahsan accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Syed A. Ahsan see?
- In 2024, CMS data shows 270 Original Medicare patients and 1,003 services for Syed A. Ahsan. This counts Original Medicare only and measures volume, not quality.
- What is Syed A. Ahsan's NPI number?
- 1720461023. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Syed A. Ahsan, 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.
| Original Medicare patients | 270 |
|---|---|
| Services billed to Medicare | 1,003 |
| Different services or procedures | 32 |
| Participating Medicare provider | Yes |
| Average age of these patients | 70 |
Most frequent services
- Critical care, first 30-74 minutes (99291)230 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)216 services
- Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)110 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)100 services
- Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)55 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%
- Ischemic heart disease75%
- Chronic kidney disease75%
- Heart failure75%
- Diabetes67%
Hospitals where Syed A. Ahsan works
Medicare's Facility Affiliation Data lists Syed A. Ahsan 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.
- Houston Methodist Clear Lake HospitalNassau Bay, TX · Acute Care Hospital · Medicare rating: 5 of 5 stars · CCN 450709
- Houston Methodist HospitalHouston, TX · Acute Care Hospital · Medicare rating: 5 of 5 stars · CCN 450358
- Houston Methodist The Woodlands HospitalThe Woodlands, TX · Acute Care Hospital · Medicare rating: 5 of 5 stars · CCN 670122
- Houston Methodist West HospitalHouston, TX · Acute Care Hospital · Medicare rating: 5 of 5 stars · CCN 670077
- Houston Methodist Willowbrook HospitalHouston, TX · Acute Care Hospital · Medicare rating: 5 of 5 stars · CCN 450844
Practice locations
Addresses where Syed A. Ahsan is enrolled with Medicare (CMS data updated October 2, 2026).
- 6445 Main St, Suite 2500Houston, TX 77030 (713) 441‑3150
- 6550 Fannin St, Suite 1901Houston, TX 77030 (713) 441‑1100
- 6565 Fannin StHouston, TX 77030
- 6565 Fannin St, Suite 520Houston, TX 77030
Group practices
Medicare enrollment lists Syed A. Ahsan as a member of these groups (CMS data updated October 2, 2026).
- TMH Physician Associates PLLC1,690 clinicians in the group
- Houston Methodist Specialty Physicians1,528 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in Texas →
Other cardiologists in Houston
Clinicians with the same Medicare primary specialty in Houston, TX — not a recommendation.
Other clinicians in TMH Physician Associates PLLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2015 (11 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1720461023 |
| Corrections | Report an error or suggest an update → |
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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians