Nima Nabavizadeh, MD

Medicare activity in 2024

Official CMS public-use data for Nima Nabavizadeh, 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. Ct guidance for insertion of radiation therapy fields (77014)378 services
2. Calculation of radiation therapy dose (77300)130 services
3. Design and construction of complex radiation treatment device (77334)123 services
4. Radiation treatment management, 5 treatment sessions (77427)93 services
5. Complex radiation therapy planning (77263)59 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 pressure66%
• High cholesterol55%
• Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)52%
• Arthritis28%
• Anxiety25%
• Chronic kidney disease22%

Hospitals where Nima Nabavizadeh works

Medicare's Facility Affiliation Data lists Nima Nabavizadeh 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.

• Asante Three Rivers Medical CenterGrants Pass, OR · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 380002
• Columbia Memorial HospitalAstoria, OR · Critical Access Hospital · Emergency services: listed by Medicare · CCN 381320
• Hillsboro Medical CenterHillsboro, OR · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 380021
• OHSU Hospital and ClinicsPortland, OR · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 380009

Practice locations

Addresses where Nima Nabavizadeh is enrolled with Medicare (CMS data updated October 2, 2026).

• 3181 SW Sam Jackson Park RdPortland, OR 97239 (503) 494‑8311

Group practices

Medicare enrollment lists Nima Nabavizadeh as a member of this group (CMS data updated October 2, 2026).

• University Professional Services1,724 clinicians in the group

Specialties

• Radiation Oncologyprimary

Find other Radiation Oncology doctors in Oregon →

Other radiation oncologists in Portland

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

• Marka R. Crittenden, MD
• Jehan Yahya, MD
• Eric K. Hansen, MD
• Emma Deloughery, MD
• Mohit S. Agarwal, MD
• Casey Williamson, MD
• Won S. Lee, MD
• Stephen C. Hoffelt, MD

All radiation oncologists in Portland →

Other clinicians in University Professional Services

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

• Rahul D'Mello, MD
• Sherene Shalhub, MD
• Asha A. Jetmalani, MD
• Marcela Riveros Angel, MD
• Amy C. Hermesch, MD
• John Yonge Iii, 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