Karl C. Stajduhar, MD

Medicare activity in 2024

Official CMS public-use data for Karl C. Stajduhar, 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. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)2,904 services
2. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)193 services
3. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)187 services
4. Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)145 services
5. Electrocardiogram (ecg) 2-day continuous with review by health care professional (93227)90 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%
• Arthritis55%
• Ischemic heart disease48%
• Atrial fibrillation42%
• Anxiety39%

Hospitals where Karl C. Stajduhar works

Medicare's Facility Affiliation Data lists Karl C. Stajduhar 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.

• Beth Israel Deaconess Medical CenterBoston, MA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 220086
• 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 Karl C. Stajduhar is enrolled with Medicare (CMS data updated October 2, 2026).

• 27 Park StHyannis, MA 02601 (774) 552‑6000

Group practices

Medicare enrollment lists Karl C. Stajduhar as a member of this group (CMS data updated October 2, 2026).

• Physicians of Cape Cod Hospital334 clinicians in the group

Specialties

• Cardiovascular Disease (Cardiology)primary

Find other Cardiovascular Disease (Cardiology) doctors in Massachusetts →

Other cardiologists in Hyannis

Clinicians with the same Medicare primary specialty in Hyannis, MA — not a recommendation.

• John Ferullo, MD
• John A. Kalin, MD
• Peter Chiotellis, MD
• Philip N. Chiotellis, MD
• Elissa C. Thompson, MD
• Adam Mohmand-Borkowski, MD
• Rachael A. Studley, MD
• Sunil Kapur, MD

All cardiologists in Hyannis →

Other clinicians in Physicians of Cape Cod Hospital

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

• Marat Mavliutov
• Mustapha Khalife, MD
• Kenneth M. Sicard
• Benjamin R. Levin, MD
• Paul M. Gagnon, MD
• Miriam Cerutti, DO

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