Tamar T. Hajar, MD

Medicare activity in 2024

Official CMS public-use data for Tamar T. Hajar, 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. Destruction of precancer skin growth, 2-14 growths (17003)619 services
2. Removal and microscopic exam of growth of head, neck, hands, feet, or genitals, 1-5 tissue blocks (17311)217 services
3. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)178 services
4. Destruction of precancer skin growth, 1 growth (17000)163 services
5. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)141 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 cholesterol67%
• High blood pressure57%
• Arthritis37%
• Ischemic heart disease19%
• Osteoporosis18%
• Chronic kidney disease17%

Hospitals where Tamar T. Hajar works

Medicare's Facility Affiliation Data lists Tamar T. Hajar 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

Practice locations

Addresses where Tamar T. Hajar is enrolled with Medicare (CMS data updated October 2, 2026).

• 2525 NW Lovejoy St, Suite 400Portland, OR 97210 (503) 223‑1933

Group practices

Medicare enrollment lists Tamar T. Hajar as a member of this group (CMS data updated October 2, 2026).

• NW Dermatology and Research Center LLC7 clinicians in the group

Specialties

• Dermatologyprimary

Find other Dermatology doctors in Oregon →

Other dermatologists in Portland

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

• Amy S. Frankel, MD
• Melanie Miller, MD
• Nirav Patel, MD
• Teri Greiling, MD
• Claudia P. Taylor, MD
• Amanda R. Arreola, MD
• Kristin Stevens, MD
• Claire J. Wiggins, MD

All dermatologists in Portland →

Other clinicians in NW Dermatology and Research Center LLC

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

• Kerianne McKeon, PA
• Sabra L. Leitenberger, MD
• Julia P. Speros, PA
• Katelyn Beilby, PA
• Nisha S. Desai, MD
• Sheryl L. Horwitz, NP

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