Quick answers
- Does Sara F. McWilliams accept Medicare assignment?
- Yes. Medicare's clinician data says Sara F. McWilliams 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 Sara F. McWilliams see?
- In 2024, CMS data shows 169 Original Medicare patients and 224 services for Sara F. McWilliams. This counts Original Medicare only and measures volume, not quality.
- What is Sara F. McWilliams's NPI number?
- 1114360559. 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 Sara F. McWilliams, 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 | 169 |
|---|---|
| Services billed to Medicare | 224 |
| Different services or procedures | 39 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Anesthesia for other procedure on upper abdomen (00790)23 services
- Injection of anesthetic agent and/or steroid into arm nerve bundle (brachial plexus) (64415)18 services
- Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)18 services
- Anesthesia for other procedure on lower abdomen (00840)16 services
- Anesthesia for procedure for total knee joint replacement (01402)13 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%
- Arthritis63%
- Ischemic heart disease28%
- Diabetes25%
- Anxiety22%
Hospitals where Sara F. McWilliams works
Medicare's Facility Affiliation Data lists Sara F. McWilliams 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.
- Methodist HospitalSan Antonio, TX · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 450388
- Methodist Hospital Stone OakSan Antonio, TX · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 670055
- South Texas Specialty HospitalSan Antonio, TX · Acute Care Hospital · Emergency services: not listed by Medicare · CCN 670112
Practice locations
Addresses where Sara F. McWilliams is enrolled with Medicare (CMS data updated October 2, 2026).
- 1927 Rogers RdSan Antonio, TX 78251 (210) 267‑1589
- 4411 Medical Dr, Suite 200San Antonio, TX 78229 (210) 575‑4584
Group practices
Medicare enrollment lists Sara F. McWilliams as a member of this group (CMS data updated October 2, 2026).
- Orthomed Staffing LLC416 clinicians in the group
Specialties
- Anesthesiologyprimary
Other anesthesiologists in San Antonio
Clinicians with the same Medicare primary specialty in San Antonio, TX — not a recommendation.
Other clinicians in Orthomed Staffing LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Texas Medical Branch At Galveston |
| Graduation year | 2013 (13 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1114360559 |
| 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