Michael Brennan, M.D.
NPI 1619903705 · Cardiovascular Disease Physician · Sheridan, WY
Enrolled with Medicare as Practitioner - Interventional Cardiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Brennan, M.D. is a Cardiovascular Disease Physician provider in Sheridan, WY (NPI 1619903705).
Provider details
- NPI number
- 1619903705
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 6651 (MT)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
1,518 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 Report93000 | 346 | $14 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function93306 | 345 | $191 |
| Electrocardiogram (ecg) 2-Day Continuous With Review By Health Care Professional93227 | 115 | $18 |
| Ultrasound of Heart With Continuous Electrocardiogram (ecg) During Rest, Exercise And/Or Drug Induced Stress With Review and Report93351 | 115 | $224 |
| Nuclear Medicine Studies of Heart Muscle at Rest and With Stress and Spect78452 | 107 | $73 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 18 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Metoprolol Succinate | 119 | 35 |
| Apixabanbrand: Eliquis | 85 | 22 |
| Rosuvastatin Calcium | 61 | 22 |
| Clopidogrel Bisulfatebrand: Clopidogrel | 61 | 20 |
| Atorvastatin Calcium | 52 | 18 |
| Furosemide | 49 | 18 |
| Carvedilol |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,906 across 13 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
- 2006-06-23
- Last updated
- 2021-04-08
- Certified
- 2021-04-08
Frequently asked questions
- What is Michael Brennan's NPI number?
- Michael Brennan's National Provider Identifier (NPI) is 1619903705, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Brennan's specialty?
- Michael Brennan is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Brennan located?
- Michael Brennan's practice location on file with NPPES is 1333 West 5th St, Ste 103, Sheridan, WY 82801-2752.
- What is Michael Brennan's phone number?
- The practice phone number listed in the NPPES registry for Michael Brennan is (307) 675-4610.
- Does Michael Brennan accept Medicare?
- Michael Brennan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Brennan's NPI active?
- Yes — Michael Brennan's NPI (1619903705) is active in the NPPES registry as of the last update on 2021-04-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.