Katherine O. Cassidy, DO

Medicare activity in 2024

Official CMS public-use data for Katherine O. Cassidy, 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 moderate level of decision making, if using time, 30 minutes or more (99214)233 services
2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)165 services
3. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)86 services
4. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)29 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%
• Arthritis40%
• Diabetes35%
• Ischemic heart disease30%
• Chronic kidney disease26%

Hospitals where Katherine O. Cassidy works

Medicare's Facility Affiliation Data lists Katherine O. Cassidy 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

Practice locations

Addresses where Katherine O. Cassidy is enrolled with Medicare (CMS data updated October 2, 2026).

• 140 Academy StPresque Isle, ME 04769
• 146 Academy StPresque Isle, ME 04769

Group practices

Medicare enrollment lists Katherine O. Cassidy as a member of this group (CMS data updated October 2, 2026).

• The Aroostook Medical Center104 clinicians in the group

Specialties

• Family Practiceprimary

Find other Family Practice doctors in Maine →

Other family doctors in Presque Isle

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

• Caleb J. Swanberg, MD
• Tiernan P. Murphy
• Robert McFadgen, MD
• Kristin M. Guerrette, DO
• Behnoosh Dashti, MD
• Michael Springer, MD

All family doctors in Presque Isle →

Other clinicians in The Aroostook Medical Center

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

• Michael H. Read, DPM
• Lukas Emery, DO
• Michael J. Saucier, CNA
• David Joshua Mayich, MD
• Jeffrey D. Georgia, MD
• Rachel M. Swartz, 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