Nadine Mallak, MD

Medicare activity in 2024

Official CMS public-use data for Nadine Mallak, 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. Nuclear medicine study from skull base to mid-thigh with ct scan (78815)158 services
2. Nuclear medicine study whole body with ct scan (78816)57 services
3. Ct scan of abdomen and pelvis with contrast (74177)53 services
4. Ct scan of chest with contrast (71260)35 services
5. Nuclear medicine study of bone and/or joint whole body (78306)32 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 pressure72%
• High cholesterol60%
• Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)38%
• Arthritis37%
• Diabetes26%
• Ischemic heart disease24%

Hospitals where Nadine Mallak works

Medicare's Facility Affiliation Data lists Nadine Mallak 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.

• OHSU Hospital and ClinicsPortland, OR · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 380009
• Salem HospitalSalem, OR · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 380051
• St Charles Medical Center - BendBend, OR · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 380047

Practice locations

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

• 3181 SW Sam Jackson Park RdPortland, OR 97239 (503) 494‑8311
• 51377 SW Old Portland RdScappoose, OR 97056 (503) 418‑4222

Group practices

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

• University Professional Services1,724 clinicians in the group

Specialties

• Diagnostic Radiologyprimary

Find other Diagnostic Radiology doctors in Oregon →

Other radiologists in Portland

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

• Hasnain Hasham, MD
• Jed R. Peterson, MD
• Julia Saltalamacchia, MD
• Varun Chowdhary, MD
• Jasper Erickson, MD
• Charles Croteau, MD
• Philip Hanline, MD
• Sebastian Elstrott, MD

All radiologists in Portland →

Other clinicians in University Professional Services

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

• Ashley Cox, PA
• Bisrat T. Teweldemedhin, MD
• Kevin M. Duff, CP
• Nadia E. Wahba, MD
• Katherine M. White, PA
• Tanaya Shree, 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