Quick answers
- Does William G. Martin accept Medicare assignment?
- Yes. Medicare's clinician data says William G. Martin 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 G. Martin see?
- In 2024, CMS data shows 355 Original Medicare patients and 1,887 services for William G. Martin. This counts Original Medicare only and measures volume, not quality.
- What is William G. Martin's NPI number?
- 1356329106. 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 G. Martin, 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 | 355 |
|---|---|
| Services billed to Medicare | 1,887 |
| Different services or procedures | 19 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)825 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)546 services
- Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)315 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)38 services
- Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)27 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 cholesterol66%
- High blood pressure64%
- Arthritis43%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)39%
- Ischemic heart disease34%
- Osteoporosis27%
Hospitals where William G. Martin works
Medicare's Facility Affiliation Data lists William G. Martin 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.
- Blue Mountain HospitalJohn Day, OR · Critical Access Hospital · Emergency services: listed by Medicare · CCN 381305
- Harney District HospitalBurns, OR · Critical Access Hospital · Emergency services: listed by Medicare · CCN 381307
- St Charles MadrasMadras, OR · Critical Access Hospital · Emergency services: listed by Medicare · CCN 381324
- St Charles Medical Center - BendBend, OR · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 380047
- St Charles Medical Center PrinevillePrineville, OR · Critical Access Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 381313
Practice locations
Addresses where William G. Martin is enrolled with Medicare (CMS data updated October 2, 2026).
- 1541 NW Canal Blvd, Cancer CentRedmond, OR 97756 (541) 706‑5800
- 211 NW Larch Ave, Family CareRedmond, OR 97756 (541) 548‑2164
- 2500 NE Neff RdBend, OR 97701
- 2500 NE Neff Rd, Pulmonary ClinBend, OR 97701 (541) 706‑7715
Group practices
Medicare enrollment lists William G. Martin as a member of this group (CMS data updated October 2, 2026).
- St Charles Health System Inc377 clinicians in the group
Specialties
- Hematology/Oncologyprimary
- Internal Medicinealso
- Medical Oncologyalso
Other hematologist-oncologists in Redmond
Clinicians with the same Medicare primary specialty in Redmond, OR — not a recommendation.
Other clinicians in St Charles Health System Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Washington School Of Medicine |
| Graduation year | 1999 (27 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) | 1356329106 |
| 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