Sean P. Horrigan, DO

Medicare activity in 2024

Official CMS public-use data for Sean P. Horrigan, 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)475 services
2. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)387 services
3. Needle measurement of electrical activity in arm or leg muscles, complete study (95886)329 services
4. Measurement of brain wave activity (eeg), awake and drowsy (95816)125 services
5. Nerve conduction, 9-10 studies (95911)107 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%
• Arthritis51%
• Anxiety40%
• Alzheimer's disease or dementia36%
• Depression33%

Hospitals where Sean P. Horrigan works

Medicare's Facility Affiliation Data lists Sean P. Horrigan 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.

• Cape Cod HospitalHyannis, MA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 220012
• Falmouth HospitalFalmouth, MA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 220135

Practice locations

Addresses where Sean P. Horrigan is enrolled with Medicare (CMS data updated October 2, 2026).

• 100 Ter Heun DrFalmouth, MA 02540 (508) 862‑7874
• 27 Park StHyannis, MA 02601 (508) 771‑1800
• 46 N St, Suite 7Hyannis, MA 02601 (508) 833‑2639

Group practices

Medicare enrollment lists Sean P. Horrigan as a member of these groups (CMS data updated October 2, 2026).

• Physicians of Cape Cod Hospital334 clinicians in the group
• Medical Affiliates of Cape Cod Inc229 clinicians in the group

Specialties

• Neurologyprimary

Find other Neurology doctors in Massachusetts →

Other neurologists in Massachusetts

Clinicians with the same Medicare primary specialty in Massachusetts — not a recommendation.

• Michael T. Leahy, MD
• Rachel E. Rodin
• Manali S. Sheth, MD
• Brahyan J. Galindo Mendez
• Sarah Ying, MD
• Azmin Kahriman, MD
• Stelios M. Smirnakis, MD
• Neal S. Parikh, MD

All neurologists in Massachusetts →

Other clinicians in Physicians of Cape Cod Hospital

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

• Maria G. Cicchetti, MD
• Peter Chiotellis, MD
• Kelly H. Provencher, NP
• Tendoh F. Timoh, MD
• Fahad Zafar, MD
• Siddhartha S. Narayanan, 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