Mira R. Olson, MD

Medicare activity in 2024

Official CMS public-use data for Mira R. Olson, 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 high level of medical decision making, if using time, 40 minutes or more (99215)17 services
2. Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)15 services
3. Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)14 services
4. Biopsy of large bowel using a flexible endoscope (45380)13 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 cholesterol75%
• Arthritis41%
• Diabetes37%
• COPD33%
• Ischemic heart disease30%

Hospitals where Mira R. Olson works

Medicare's Facility Affiliation Data lists Mira R. Olson 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.

• MaineHealth Waldo HospitalBelfast, ME · Critical Access Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 201312
• St Joseph HospitalBangor, ME · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 200001

Practice locations

Addresses where Mira R. Olson is enrolled with Medicare (CMS data updated October 2, 2026).

• 360 Broadway, LBangor, ME 04401 (207) 907‑1000

Group practices

Medicare enrollment lists Mira R. Olson as a member of this group (CMS data updated October 2, 2026).

• St Joseph Hospital199 clinicians in the group

Specialties

• Gastroenterologyprimary
• Internal Medicinealso

Find other Gastroenterology doctors in Maine →

Other gastroenterologists in Bangor

Clinicians with the same Medicare primary specialty in Bangor, ME — not a recommendation.

• Mark R. Lena, MD
• Amaar H. Ghazale, MD
• Gracia M. Viana Rodriguez, MD
• Jean M. Larson, MD
• Michael P. Sighinolfi, MD
• Pearl Princess D. Uy, MD
• Joseph P. Gallagher, MD
• Frederick S. Moore, MD

All gastroenterologists in Bangor →

Other clinicians in St Joseph Hospital

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

• Paul E. Ouellette
• Michael A. Soucier, CNA
• Sheryl A. Sparlin
• David J. Koffman, MD
• Andrew C. Dixon, MD
• Mark R. Lena, 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