Quick answers
- Does William I. Sawyer accept Medicare assignment?
- Yes. Medicare's clinician data says William I. Sawyer 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 William I. Sawyer see?
- In 2024, CMS data shows 1,196 Original Medicare patients and 4,090 services for William I. Sawyer. This counts Original Medicare only and measures volume, not quality.
- What is William I. Sawyer's NPI number?
- 1699969634. 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 William I. Sawyer, 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 | 1,196 |
|---|---|
| Services billed to Medicare | 4,090 |
| Different services or procedures | 45 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Established patient complete exam of visual system (92014)637 services
- Imaging of retina (92134)474 services
- Measurement of corneal curvature and depth of eye (92136)334 services
- Established patient problem focused exam of visual system (92012)326 services
- Removal of cataract with insertion of prosthetic lens (66984)319 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%
- Arthritis50%
- Diabetes29%
- Ischemic heart disease27%
- Chronic kidney disease21%
Hospitals where William I. Sawyer works
Medicare's Facility Affiliation Data lists William I. Sawyer 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.
- Lake Granbury Medical CenterGranbury, TX · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 450596
Practice locations
Addresses where William I. Sawyer is enrolled with Medicare (CMS data updated October 2, 2026).
- 925 Santa Fe Dr, Suite 105Weatherford, TX 76086
- 950 Whitehead DrGranbury, TX 76048 (682) 300‑2020
Group practices
Medicare enrollment lists William I. Sawyer as a member of this group (CMS data updated October 2, 2026).
- Sawyer Eye Center, PLLC6 clinicians in the group
Specialties
- Ophthalmologyprimary
Other ophthalmologists in Texas
Clinicians with the same Medicare primary specialty in Texas — not a recommendation.
Other clinicians in Sawyer Eye Center, PLLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | University Of North Texas Hsc, College Of Osteopathic Med |
| Graduation year | 2006 (20 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1699969634 |
| 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