James J. Biemer Jr., MD

Medicare activity in 2024

Official CMS public-use data for James J. Biemer Jr., 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. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)224 services
2. Insertion of needle into vein for collection of blood sample (36415)217 services
3. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)133 services
4. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)123 services
5. Telephone medical discussion with physician, 11-20 minutes (99442)40 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 cholesterol75%
• High blood pressure62%
• Arthritis38%
• Ischemic heart disease25%
• Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)21%
• Atrial fibrillation18%

Hospitals where James J. Biemer Jr. works

Medicare's Facility Affiliation Data lists James J. Biemer Jr. 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.

• Legacy Good Samaritan Medical CenterPortland, OR · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 380017
• Providence St Vincent Medical CenterPortland, OR · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 380004

Practice locations

Addresses where James J. Biemer Jr. is enrolled with Medicare (CMS data updated October 2, 2026).

• 9135 SW Barnes Rd, Suite 863Portland, OR 97225 (503) 384‑0316

Group practices

Medicare enrollment lists James J. Biemer Jr. as a member of this group (CMS data updated October 2, 2026).

• James J Biemer Jr MD, P.C.3 clinicians in the group

Specialties

• Internal Medicineprimary

Find other Internal Medicine doctors in Oregon →

Other internal medicine doctors in Portland

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

• Hakim Dekkiche, DO
• Jihad Ghandour, MD
• Dorelan L. Miller, MD
• Jane M. Zhu, MD
• Megan L. Schermerhorn, MD
• Ravindra Patel, MD
• Muhammad F. Khaliq, MD
• Jennifer M. Slack, MD

All internal medicine doctors in Portland →

Other clinicians in James J Biemer Jr MD, P.C.

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

• Summer R. Lam, MD
• Julia L. Jones, 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