Karl Stajduhar, M.D.
NPI 1356386734 · Cardiovascular Disease Physician · Hyannis, MA
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karl Stajduhar, M.D. is a Cardiovascular Disease Physician provider in Hyannis, MA (NPI 1356386734).
Provider details
- NPI number
- 1356386734
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 257626 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
3,857 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 2,904 | $8 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 193 | $129 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 187 | $79 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function93306 | 145 | $68 |
| Electrocardiogram (ecg) 2-Day Continuous With Review By Health Care Professional93227 | 90 | $18 |
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-18
- Last updated
- 2014-11-13
Frequently asked questions
- What is Karl Stajduhar's NPI number?
- Karl Stajduhar's National Provider Identifier (NPI) is 1356386734, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karl Stajduhar's specialty?
- Karl Stajduhar is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Karl Stajduhar located?
- Karl Stajduhar's practice location on file with NPPES is 27 Park St., Hyannis, MA 02601-0000.
- What is Karl Stajduhar's phone number?
- The practice phone number listed in the NPPES registry for Karl Stajduhar is (508) 862-5839.
- Does Karl Stajduhar accept Medicare?
- Karl Stajduhar is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karl Stajduhar's NPI active?
- Yes — Karl Stajduhar's NPI (1356386734) is active in the NPPES registry as of the last update on 2014-11-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.