Richard R. Riemersma, MD

Medicare activity in 2024

Official CMS public-use data for Richard R. Riemersma, 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. Pathology examination of tissue using a microscope, intermediate complexity (88305)289 services
2. Special stained specimen slides to examine tissue, each additional procedure (88341)162 services
3. Pathology examination of tissue using a microscope, moderately high complexity (88307)116 services
4. Pathology examination of specimen during surgery, first tissue block (88331)85 services
5. Microscopic genetic analysis of tumor, manual (88360)68 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 cholesterol74%
• High blood pressure72%
• Arthritis45%
• Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)37%
• Anxiety30%
• COPD28%

Hospitals where Richard R. Riemersma works

Medicare's Facility Affiliation Data lists Richard R. Riemersma 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.

• Cary Medical CenterCaribou, ME · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 200031
• Northern Light A R Gould HospitalPresque Isle, ME · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 200018
• Northern Light Eastern Maine Medical CenterBangor, ME · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 200033
• Northern Light Mercy HospitalPortland, ME · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 200008
• St Joseph HospitalBangor, ME · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 200001

Practice locations

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

• 417 State StBangor, ME 04401

Group practices

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

• Dahl Chase Pathology Associates PA15 clinicians in the group

Specialties

• Pathologyprimary

Find other Pathology doctors in Maine →

Other pathologists in Bangor

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

• Marek Skacel, MD
• Scott D. Dufresne, MD
• Chunhui Yi, MD
• Orin W. Buetens, MD
• Chelsey M. Gracia, DO
• Frederick I. Eyerer, MD
• Karolyn Nicholas, MD
• Carol E. Trask, MD

All pathologists in Bangor →

Other clinicians in Dahl Chase Pathology Associates PA

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

• Marek Skacel, MD
• Scott D. Dufresne, MD
• Chunhui Yi, MD
• Orin W. Buetens, MD
• Chelsey M. Gracia, DO
• Frederick I. Eyerer, 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