Quick answers
- Does Jeffrey R. Mathisen accept Medicare assignment?
- Yes. Medicare's clinician data says Jeffrey R. Mathisen 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 Jeffrey R. Mathisen see?
- In 2024, CMS data shows 127 Original Medicare patients and 211 services for Jeffrey R. Mathisen. This counts Original Medicare only and measures volume, not quality.
- What is Jeffrey R. Mathisen's NPI number?
- 1740200484. 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 Jeffrey R. Mathisen, 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 | 127 |
|---|---|
| Services billed to Medicare | 211 |
| Different services or procedures | 59 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)36 services
- New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)16 services
- Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)15 services
- Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito (G0500)15 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)11 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 pressure74%
- High cholesterol64%
- Arthritis47%
- Ischemic heart disease32%
- Depression25%
- Heart failure25%
Hospitals where Jeffrey R. Mathisen works
Medicare's Facility Affiliation Data lists Jeffrey R. Mathisen 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.
- 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 Jeffrey R. Mathisen is enrolled with Medicare (CMS data updated October 2, 2026).
- 1253 NW Canal Blvd, Adv Illness ManagRedmond, OR 97756 (541) 706‑5880
- 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
- 655 NW Jackpine Ave, Sleep CentRedmond, OR 97756 (541) 526‑6661
Group practices
Medicare enrollment lists Jeffrey R. Mathisen as a member of this group (CMS data updated October 2, 2026).
- St Charles Health System Inc377 clinicians in the group
Specialties
- General Surgeryprimary
Other general surgeons 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 | Indiana University School Of Medicine |
| Graduation year | 1996 (30 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1740200484 |
| 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