Mark Berry, D.O.
NPI 1336121938 · Interventional Cardiology Physician · Duluth, MN
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Berry, D.O. is a Interventional Cardiology Physician provider in Duluth, MN (NPI 1336121938).
Provider details
- NPI number
- 1336121938
- Entity type
- Individual
- Primary specialty
- Interventional Cardiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- 73897 (MN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
2,372 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 | 1,224 | $8 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function93306 | 258 | $65 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 213 | $8 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 121 | $92 |
| Heart Rhythm Review and Interpretation of Continous External Ekg Over 8-15 Days93248 | 116 | $24 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 28 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Metoprolol Succinate | 194 | 86 |
| Spironolactone | 129 | 51 |
| Apixabanbrand: Eliquis | 121 | 46 |
| Rosuvastatin Calcium | 98 | 29 |
| Losartan Potassium | 93 | 27 |
| Atorvastatin Calcium | 91 | 40 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$629 across 5 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-11-18
- Last updated
- 2026-04-09
- Certified
- 2026-04-09
Frequently asked questions
- What is Mark Berry's NPI number?
- Mark Berry's National Provider Identifier (NPI) is 1336121938, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Berry's specialty?
- Mark Berry is listed in the NPPES registry with a primary specialty of Interventional Cardiology Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Berry located?
- Mark Berry's practice location on file with NPPES is 1001 E Superior St, Duluth, MN 55802-2207.
- What is Mark Berry's phone number?
- The practice phone number listed in the NPPES registry for Mark Berry is (218) 249-3057.
- Does Mark Berry accept Medicare?
- Mark Berry is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Berry's NPI active?
- Yes — Mark Berry's NPI (1336121938) is active in the NPPES registry as of the last update on 2026-04-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.