Quick answers
- Which hospitals does Dennis T. Williams work at?
- Medicare's official clinician data lists Dennis T. Williams at 1 hospital: Shannon Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Dennis T. Williams see patients?
- Medicare's clinician data lists 1 practice location in San Angelo, TX. Call before your visit to confirm the address.
- What is Dennis T. Williams's specialty?
- Medicare lists Anesthesiology as the primary specialty.
- Does Dennis T. Williams accept Medicare assignment?
- Yes. Medicare's clinician data says Dennis T. Williams 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 Dennis T. Williams?
- (325) 747-6741, as listed in official Medicare / NPI Registry data.
- What is Dennis T. Williams's NPI number?
- 1992864755. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Dennis T. Williams works
Medicare's Facility Affiliation Data lists Dennis T. Williams at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Shannon Medical CenterSan Angelo, TX · Acute Care Hospital · CCN 450571
Practice locations
Addresses where Dennis T. Williams is enrolled with Medicare (CMS data updated 2026-10-02).
- 120 E Harris AveSan Angelo, TX 76903 (325) 747‑6741
Group practices
Medicare enrollment lists Dennis T. Williams as a member of this group (CMS data updated 2026-10-02).
- Shannon Clinic559 clinicians in the group
Specialties
- Anesthesiologyprimary
Other anesthesiologists in San Angelo
Clinicians with the same Medicare primary specialty in San Angelo, TX — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Baylor College Of Medicine |
| Graduation year | 1996 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1992864755 |
| 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