Quick answers
- Does Syed Z. Hasnain accept Medicare assignment?
- Yes. Medicare's clinician data says Syed Z. Hasnain 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 Z. Hasnain see?
- In 2024, CMS data shows 357 Original Medicare patients and 2,734 services for Syed Z. Hasnain. This counts Original Medicare only and measures volume, not quality.
- What is Syed Z. Hasnain's NPI number?
- 1992755953. 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 Z. Hasnain, 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 | 357 |
|---|---|
| Services billed to Medicare | 2,734 |
| Different services or procedures | 11 |
| Participating Medicare provider | Yes |
| Average age of these patients | 80 |
Most frequent services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)1,302 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)773 services
- Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)251 services
- Hospital discharge day management, more than 30 minutes (99239)248 services
- Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)132 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%
- Arthritis69%
- Ischemic heart disease55%
- Chronic kidney disease49%
- Diabetes45%
Hospitals where Syed Z. Hasnain works
Medicare's Facility Affiliation Data lists Syed Z. Hasnain 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 West HospitalHouston, TX · Acute Care Hospital · Medicare rating: 5 of 5 stars · CCN 670077
- Memorial Hermann Katy HospitalKaty, TX · Acute Care Hospital · Medicare rating: 3 of 5 stars · CCN 450847
Practice locations
Addresses where Syed Z. Hasnain is enrolled with Medicare (CMS data updated October 2, 2026).
- 18400 Katy Fwy, Suite 430Houston, TX 77094 (832) 476‑0007
- 18500 Katy FwyHouston, TX 77094 (832) 476‑0007
- 800 College PkwyLewisville, TX 75077 (972) 420‑8543
Group practices
Medicare enrollment lists Syed Z. Hasnain as a member of these groups (CMS data updated October 2, 2026).
- Legacy Healthcare Services Inc3,223 clinicians in the group
- Family Health Consultants P A.2 clinicians in the group
Specialties
Other internal medicine doctors in Houston
Clinicians with the same Medicare primary specialty in Houston, TX — not a recommendation.
Other clinicians in Legacy Healthcare Services Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1989 (37 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) | 1992755953 |
| 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