John Askew, M.D.
NPI 1568436632 · Cardiovascular Disease Physician · Rochester, MN
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Provider details
- NPI number
- 1568436632
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 47843 (MN)
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
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
404 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) |
|---|---|---|
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function93306 | 108 | $68 |
| Exercise Or Drug-Induced Heart Stress Test With Electrocardiogram (ecg) With Review By Physician93018 | 60 | $14 |
| Exercise Or Drug-Induced Heart Stress Test With Electrocardiogram (ecg) With Supervision By Physician93016 | 59 | $21 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate and Valve Function93325 | 43 | $3 |
| Ultrasound of Heart With Continuous Electrocardiogram (ecg) During Rest, Exercise And/Or Drug Induced Stress With Review and Report93351 | 38 | $81 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 10 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Atorvastatin Calcium | 30 |
| Metoprolol Succinate | 20 |
| Rosuvastatin Calcium | 20 |
| Ezetimibe | 17 |
| Clopidogrel Bisulfatebrand: Clopidogrel | 15 |
| Metoprolol Tartrate | 13 |
| Pantoprazole Sodium | 12 |
| Diltiazem Hclbrand: Diltiazem 24hr Er (cd) | 11 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-02-15
- Last updated
- 2020-08-11
- Certified
- 2020-08-11
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.