Quick answers
- Which hospitals does Marshall B. Hamill work at?
- Medicare's official clinician data lists Marshall B. Hamill at 2 hospitals: Baylor St. Luke's Medical Center and Houston Methodist Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Marshall B. Hamill see patients?
- Medicare's clinician data lists 7 practice locations, including Houston, TX. Call before your visit to confirm the address.
- What is Marshall B. Hamill's specialty?
- Medicare lists Ophthalmology as the primary specialty.
- Does Marshall B. Hamill accept Medicare assignment?
- Yes. Medicare's clinician data says Marshall B. Hamill accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Marshall B. Hamill?
- (713) 873-4900, as listed in official Medicare / NPI Registry data.
- What is Marshall B. Hamill's NPI number?
- 1972592384. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Marshall B. Hamill works
Medicare's Facility Affiliation Data lists Marshall B. Hamill at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Baylor St. Luke's Medical CenterHouston, TX · Acute Care Hospital · CCN 450193
- Houston Methodist HospitalHouston, TX · Acute Care Hospital · CCN 450358
Practice locations
Addresses where Marshall B. Hamill is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 7; the Medicare profile lists all.
- 1502 Taub LoopHouston, TX 77030 (713) 873‑4900
- 1504 Taub LoopHouston, TX 77030 (713) 873‑2000
- 1977 Butler BlvdHouston, TX 77030
- 1977 Butler BoulevardHouston, TX 77030
- 1977 Butler Boulevard 6th Floor, 200 Bcm PhysiciansHouston, TX 77030 (713) 798‑6131
Group practices
Medicare enrollment lists Marshall B. Hamill as a member of these groups (CMS data updated 2026-10-02).
- Baylor College of Medicine1,240 clinicians in the group
- Baylor College of Medicine809 clinicians in the group
Specialties
- Ophthalmologyprimary
Other ophthalmologists in Houston
Clinicians with the same Medicare primary specialty in Houston, TX — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Baylor College Of Medicine |
| Graduation year | 1979 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1972592384 |
| 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 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- 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