Dr. Michael W. Brennan, MD
- Medicare services, 2024
- 1,518
- Medicare patients, 2024
- 917
- Part D claims, 2024
- 840
- MIPS score, 2024
- 87
- Hospital affiliations
- 2
- Practice address
- 1333 W 5th St Ste 200 Suite 200, Sheridan, WY 82801
- Practice phone
- Call (307) 673-3181
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Sheridan Memorial Clinics
Multi-specialty group site · Sheridan, Wyoming
Find Dr. Brennan's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Michael W. Brennan is a cardiologist in Sheridan, Wyoming
Dr. Brennan practices at Sheridan Memorial Clinics in Sheridan, Wyoming.
Dr. Brennan's NPI, 1619903705, was assigned on June 23, 2006. Dr. Brennan graduated from University of Oklahoma College of Medicine in 1984. Dr. Brennan holds Wyoming license 4505A.
- NPI
- 1619903705NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3971405929
- NPI enumeration date
- June 23, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (307) 673-3181
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 68
- Medical school graduation
- 1984
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Michael W. Brennan practices at Sheridan Memorial Clinics in Sheridan, Wyoming
Dr. Brennan's primary practice is Sheridan Memorial Clinics, at 1333 W 5th St Ste 200 Suite 200, Sheridan, WY 82801. The practice phone is (307) 673-3181.
- Sheridan Memorial Clinics1333 W 5th St Ste 200 Suite 200, Sheridan, WY 82801Phone(307) 673-3181
Source: Dmand AI Affiliation Data
Dr. Michael W. Brennan is affiliated with 4 sites of care and 2 medical groups
Dr. Brennan's primary practice is Sheridan Memorial Clinics in Sheridan, Wyoming. Dr. Brennan is also affiliated with Sheridan Memorial Hospital. The medical group on file is Sheridan Memorial Hospital. Dmand AI also links Dr. Brennan to 1 more hospital, 1 group practice or clinic and 1 medical group, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Michael W. Brennan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Brennan practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Sheridan Memorial Clinics | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Michael W. Brennan is one of 27 cardiologists in Wyoming
Cardiovascular disease is Dr. Brennan's primary specialty in the NPI Registry, under taxonomy code 207RC0000X. Dmand AI has Dr. Brennan's licenses on file in 2 states: Wyoming and Montana.
Specialties and state licenses
- Cardiovascular disease, WyomingPrimary
- Montana license
Cardiologists near Dr. Brennan
Counts of cardiologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Michael W. Brennan billed Medicare for 1,518 services in 2024
CMS data shows 1,518 Medicare services from Dr. Brennan across 17 procedure codes in 2024, for 917 Medicare patients. Medicare paid $114,570 for them.
Dr. Brennan's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 1,3772024: 1,15216%
- Office and hospital visits
- 2023: 2612024: 2591%
- Imaging
- 2023: 1202024: 10711%
- Other services
- 2023: 422024: 0100%
Where Dr. Brennan's Medicare services took place, 2024
- In an office1,05770%
- In a facility46130%
Dr. Brennan compared with the Wyoming median for cardiologists, 2024
- Dr. Brennan
- Wyoming median
- Medicare services
- 1,518vs 1,07741% above
- Medicare patients
- 917vs 78417% above
- Part D claims
- 719vs 1,59555% below
Medians across 26 cardiologists in Wyoming with Dmand AI profiles that report each measure.
Dr. Brennan's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Brennan and other cardiologists in Wyoming.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Michael W. Brennan treated 917 Medicare patients in 2024, average age 76
CMS counts 917 Medicare patients who saw Dr. Brennan in 2024. The largest group is 65 to 74, with 397 patients. 75% of them have high blood pressure, and 64% have high cholesterol. 8% are also on Medicaid. Their average risk score is 1.11, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Brennan's median patient age at 73, with 44% women.
Dr. Brennan's Medicare patients by age, 2024
Dr. Brennan's Medicare patients by sex, 2024
- Women45450%
- Men46350%
Chronic conditions among Dr. Brennan's Medicare patients, 2024
- High blood pressure75%
- High cholesterol64%
- Ischemic heart disease41%
- Atrial fibrillation40%
- Arthritis38%
- Heart failure28%
- Diabetes26%
- COPD21%
Share of Medicare patients with each condition. A patient can have several.
Dr. Brennan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 73
Patient panel by sex, all payers
- Women44%
- Men56%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Michael W. Brennan wrote 840 Medicare Part D claims in 2024
In 2024, Dr. Brennan wrote 840 Medicare Part D claims for 168 patients. 84% of them were for generic drugs. CMS names the drug for 719 of them, across 18 drugs with 11 or more claims each, at $75,791 in total drug cost. In 2023, CMS named 691 claims across 18 drugs.
Dr. Brennan's Part D claims by kind of drug, 2024
- Generic704 claims84%
- Brand-name136 claims16%
Dr. Brennan's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 6912024: 7194%
Drugs named by CMS: 18 in 2024, 18 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Michael W. Brennan scored 87 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 87 out of 100 for Dr. Brennan for performance year 2024, reported as part of a group. Dr. Brennan accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 14 procedures of pacemaker insertion or repair by Dr. Brennan, more than 65% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Dr. Brennan's MIPS scores, performance year 2024
- 87of 100Final score
- 82.1of 100Quality
- 98of 100Promoting Interoperability
- 40of 100Improvement Activities
- 75of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Brennan ranks in Medicare procedure volume
- Pacemaker insertion or repair
- 65th percentile14 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Coronary angioplasty and stenting: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Michael W. Brennan received $3,086 in industry payments from 2016 to 2025
CMS Open Payments shows 51 general payments to Dr. Brennan from 19 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 60% of the total. Medtronic, Inc. paid the most, $2,171.
General payments to Dr. Brennan by program year, 2016 to 2025
General payments to Dr. Brennan by kind, 2016 to 2025
- Food and beverage$1,85060%
- Travel and lodging$1,23640%
Companies that paid Dr. Brennan the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Michael W. Brennan graduated from University of Oklahoma College of Medicine
Dr. Brennan graduated from University of Oklahoma College of Medicine in 1984.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Michael W. Brennan's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Michael W. Brennan
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Michael W. Brennan's NPI number?
Dr. Michael W. Brennan's NPI number is 1619903705. It was assigned on June 23, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Michael W. Brennan?
Dr. Michael W. Brennan is a cardiologist in Sheridan, Wyoming. The primary specialty in the NPI Registry is Cardiovascular Disease Physician (taxonomy code 207RC0000X).
Where does Dr. Michael W. Brennan practice?
Dr. Brennan practices at 1333 W 5th St Ste 200 Suite 200, Sheridan, WY 82801. Dr. Brennan's primary practice is Sheridan Memorial Clinics in Sheridan, Wyoming. Dmand AI also links Dr. Brennan to 1 hospital, 1 group practice or clinic and 1 medical group.
What is Dr. Michael W. Brennan's office phone number?
The practice phone on file for Dr. Brennan is (307) 673-3181.
What is Dr. Michael W. Brennan's medical license number?
Dr. Brennan holds Wyoming license 4505A, one of the licenses on file in 2 states.
Which states has Dr. Michael W. Brennan been licensed in?
Dmand AI has state licenses on file for Dr. Brennan in Wyoming and Montana.
Which hospitals is Dr. Michael W. Brennan affiliated with?
Dr. Brennan is affiliated with Sheridan Memorial Hospital. Dmand AI links Dr. Brennan to 1 more hospital.
What medical group is Dr. Michael W. Brennan part of?
Dr. Brennan is linked to Sheridan Memorial Hospital. Dmand AI links Dr. Brennan to 1 more medical group.
Does Dr. Michael W. Brennan accept Medicare?
Yes. CMS data shows Dr. Brennan billed Medicare for 1,518 services in 2024, and Dr. Brennan accepts Medicare assignment.
What is Dr. Michael W. Brennan's MIPS score?
Dr. Brennan's MIPS final score for performance year 2024 is 87 out of 100, reported as part of a group.
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How many Medicare patients does Dr. Michael W. Brennan see?
CMS counts 917 Medicare patients who saw Dr. Brennan in 2024, with an average age of 76.
What services does Dr. Michael W. Brennan bill to Medicare?
In 2024, Dr. Brennan's most billed Medicare services were heart test or procedure (93306), heart test or procedure (93000) and heart test or procedure (93227).
Where did Dr. Michael W. Brennan go to medical school?
Dr. Brennan graduated from University of Oklahoma College of Medicine in 1984.
What drugs does Dr. Michael W. Brennan prescribe most?
In 2024 Medicare Part D data, Dr. Brennan's most prescribed drugs by claims were Metoprolol Succinate, Eliquis and Clopidogrel.
Has Dr. Michael W. Brennan received payments from drug or device companies?
CMS Open Payments shows $3,086 in general payments to Dr. Brennan from 19 companies from 2016 to 2025. The largest total came from Medtronic, Inc.
How long has Dr. Michael W. Brennan been practicing?
Dr. Brennan graduated from medical school in 1984, 42 years ago.
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