Anne C. Onishi, MD

Medicare activity in 2024

Official CMS public-use data for Anne C. Onishi, 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.

Most frequent services

1. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)46 services
2. Critical care, first 30-74 minutes (99291)25 services
3. Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)24 services
4. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)15 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 cholesterol73%
• Arthritis52%
• Ischemic heart disease35%
• Heart failure35%
• Diabetes34%

Hospitals where Anne C. Onishi works

Medicare's Facility Affiliation Data lists Anne C. Onishi 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 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 Anne C. Onishi is enrolled with Medicare (CMS data updated October 2, 2026).

• 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 Anne C. Onishi as a member of this group (CMS data updated October 2, 2026).

• St Charles Health System Inc377 clinicians in the group

Specialties

• General Surgeryprimary

Find other General Surgery doctors in Oregon →

Other general surgeons in Redmond

Clinicians with the same Medicare primary specialty in Redmond, OR — not a recommendation.

• Luke Martin, MD
• Mary E. Condron, MD
• David M. Carne, MD
• John C. Land, MD
• Randy J. Kjorstad, MD
• Nicholas R. Faunce, MD
• Maryclare S. Sarff, MD
• Carolyn L. Luppens, MD

All general surgeons in Redmond →

Other clinicians in St Charles Health System Inc

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

• Kristi B. Sterry, PA
• Matthew T. Essman, MD
• Luke Martin, MD
• Connor A. King, MD
• Karen Axten, MD
• Heather L. Hansen Dispenza, MD

Clinician information

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

1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
6. Medicare Care Compare — official Medicare tool to look up clinicians