Mark Krzyston, M.D.
NPI 1508923194 · Cardiovascular Disease Physician · Orangeburg, SC
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Krzyston, M.D. is a Cardiovascular Disease Physician provider in Orangeburg, SC (NPI 1508923194).
Provider details
- NPI number
- 1508923194
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- SC12677 (SC)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 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
3,233 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 | 1,558 | $8 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 567 | $92 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function93306 | 257 | $65 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 168 | $75 |
| Exercise Or Drug-Induced Heart Stress Test With Electrocardiogram (ecg) With Review By Physician93018 | 137 | $13 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 52 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Apixabanbrand: Eliquis | 590 | 131 |
| Amlodipine Besylate | 527 | 153 |
| Metoprolol Succinate | 426 | 122 |
| Carvedilol | 307 | 89 |
| Sacubitril/Valsartanbrand: Entresto | 301 | 66 |
| Rosuvastatin Calcium | 286 | 84 |
| Losartan Potassium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-01-02
- Last updated
- 2015-01-12
Frequently asked questions
- What is Mark Krzyston's NPI number?
- Mark Krzyston's National Provider Identifier (NPI) is 1508923194, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Krzyston's specialty?
- Mark Krzyston is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Krzyston located?
- Mark Krzyston's practice location on file with NPPES is 1175 Cook Rd, Orangeburg, SC 29118-8201.
- What is Mark Krzyston's phone number?
- The practice phone number listed in the NPPES registry for Mark Krzyston is (803) 534-8723.
- Does Mark Krzyston accept Medicare?
- Mark Krzyston is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Krzyston's NPI active?
- Yes — Mark Krzyston's NPI (1508923194) is active in the NPPES registry as of the last update on 2015-01-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.