Quick answers
- Does William F. Wagner Jr. accept Medicare assignment?
- Yes. Medicare's clinician data says William F. Wagner Jr. 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 F. Wagner Jr. see?
- In 2024, CMS data shows 436 Original Medicare patients and 2,827 services for William F. Wagner Jr.. This counts Original Medicare only and measures volume, not quality.
- What is William F. Wagner Jr.'s NPI number?
- 1841275476. 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 F. Wagner Jr., 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 | 436 |
|---|---|
| Services billed to Medicare | 2,827 |
| Different services or procedures | 76 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Injection, triamcinolone acetonide, not otherwise specified, 10 mg (J3301)878 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)362 services
- Aspiration and/or injection of fluid from small joint (20600)204 services
- Injection into tendon or ligament (20550)166 services
- New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)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 cholesterol67%
- Arthritis64%
- High blood pressure49%
- Ischemic heart disease19%
- Anxiety15%
- Depression14%
Practice locations
Addresses where William F. Wagner Jr. is enrolled with Medicare (CMS data updated October 2, 2026).
- 600 Broadway, Suite 440Seattle, WA 98122 (206) 292‑6252
Group practices
Medicare enrollment lists William F. Wagner Jr. as a member of this group (CMS data updated October 2, 2026).
- Seattle Hand Surgery Group PC13 clinicians in the group
Specialties
- Hand Surgeryprimary
Other hand surgeons in Seattle
Clinicians with the same Medicare primary specialty in Seattle, WA — not a recommendation.
Other clinicians in Seattle Hand Surgery Group PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Indiana University School Of Medicine |
| Graduation year | 1991 (35 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1841275476 |
| 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
- 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