Quick answers
- Does William L. Pistel accept Medicare assignment?
- Yes. Medicare's clinician data says William L. Pistel 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 L. Pistel see?
- In 2024, CMS data shows 488 Original Medicare patients and 3,809 services for William L. Pistel. This counts Original Medicare only and measures volume, not quality.
- What is William L. Pistel's NPI number?
- 1518979418. 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 L. Pistel, 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 | 488 |
|---|---|
| Services billed to Medicare | 3,809 |
| Different services or procedures | 101 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Most frequent services
- Injection, triamcinolone acetonide, not otherwise specified, 10 mg (J3301)1,849 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)399 services
- Aspiration and/or injection of fluid from large joint (20610)250 services
- X-ray of knee, 1-2 views (73560)112 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)110 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%
- Arthritis75%
- Diabetes41%
- Depression28%
- Anxiety28%
Hospitals where William L. Pistel works
Medicare's Facility Affiliation Data lists William L. Pistel 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.
- Adventist Health SonoraSonora, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: not listed by Medicare · CCN 050335
- Doctors Hospital of MantecaManteca, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 050118
- Doctors Medical CenterModesto, CA · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 050464
- Oak Valley Hospital DistrictOakdale, CA · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 050067
Practice locations
Addresses where William L. Pistel is enrolled with Medicare (CMS data updated October 2, 2026).
- 1524 McHenry Ave, Suite 300Modesto, CA 95350 (209) 722‑4842
- 609 E Orangeburg Ave, Suite 201Modesto, CA 95350 (209) 572‑3224
Group practices
Medicare enrollment lists William L. Pistel as a member of these groups (CMS data updated October 2, 2026).
- Golden Valley Health Centers113 clinicians in the group
- Stanislaus Orthopaedic and Sports Medicine Clinic9 clinicians in the group
Specialties
- Orthopedic Surgeryprimary
Other orthopedic surgeons in Modesto
Clinicians with the same Medicare primary specialty in Modesto, CA — not a recommendation.
Other clinicians in Golden Valley Health Centers
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 | 1991 (35 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1518979418 |
| 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