Dr. Brigit Kerry Brennan, MD
- Medicare services, 2024
- 32
- Medicare patients, 2024
- 55
- Part D claims, 2024
- 78
- MIPS score, 2024
- 90
- Industry payments
- $158
- Practice address
- 1005 W Green St 300 Corewell Health Pennock Hospital, Hastings, MI 49058-1725
- Practice phone
- Call (269) 948-8411
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Corewell Health Pennock Hospital Professional - Hastings (W Green St)
Multi-specialty group site · Hastings, Michigan
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. Brigit Kerry Brennan is a general surgeon in Hastings, Michigan
Dr. Brennan practices at Corewell Health Pennock Hospital Professional - Hastings (W Green St) in Hastings, Michigan.
Dr. Brennan's NPI, 1679567572, was assigned on September 7, 2005. Dr. Brennan graduated from University of Michigan Medical School in 1989. Dr. Brennan holds Michigan license 4301054210.
- NPI
- 1679567572NPI Registry (opens in a new tab)
- NPI enumeration date
- September 7, 2005
- NPI status
- Active
- Practice phone
- (269) 948-8411
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 63
- Medical school graduation
- 1989
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Brigit Kerry Brennan practices at 2 locations in Hastings, Michigan
Dr. Brennan's primary practice is Corewell Health Pennock Hospital Professional - Hastings (W Green St), at 1005 W Green St 300 Corewell Health Pennock Hospital, Hastings, MI 49058-1725. The practice phone is (269) 948-8411. The NPI Registry lists Dr. Brennan's practice address as 1009 W Green St, Hastings, MI 49058.
- Corewell Health Pennock Hospital Professional - Hastings (W Green St)Primary1005 W Green St 300 Corewell Health Pennock Hospital, Hastings, MI 49058-1725Phone(269) 948-8411
- NPI Registry address1009 W Green St, Hastings, MI 49058 · Barry CountyPhone(269) 948-3632
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Dr. Brigit Kerry Brennan is affiliated with 1 site of care and 1 medical group
Dr. Brennan's primary practice is Corewell Health Pennock Hospital Professional - Hastings (W Green St) in Hastings, Michigan. The medical group on file is Corewell Health Pennock Hospital.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. Brigit Kerry Brennan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Brennan practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Corewell Health Pennock Hospital Professional - Hastings (W Green St) | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Brigit Kerry Brennan is one of 1,095 general surgeons in Michigan
Surgery is Dr. Brennan's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Brennan is licensed in Michigan.
Specialties and state licenses
- Surgery, MichiganPrimary
General surgeons near Dr. Brennan
Counts of general surgeons 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. Brigit Kerry Brennan billed Medicare for 32 services in 2024
CMS data shows 32 Medicare services from Dr. Brennan across 2 procedure codes in 2024, for 55 Medicare patients. Medicare paid $5,012 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Brennan's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Surgery
- 2023: 142024: 1829%
- Other services
- 2023: 112024: 1427%
Dr. Brennan compared with the Michigan median for general surgeons, 2024
- Dr. Brennan
- Michigan median
- Medicare services
- 32vs 12675% below
- Medicare patients
- 55vs 10749% below
- Part D claims
- 11vs 3063% below
Medians across 1,046 general surgeons in Michigan 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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Brigit Kerry Brennan treated 55 Medicare patients in 2024, average age 73
CMS counts 55 Medicare patients who saw Dr. Brennan in 2024. The largest group is 65 to 74, with 33 patients. 75% of them have high cholesterol, and 67% have high blood pressure. Their average risk score is 1.24, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Brennan's median patient age at 66, with 50% women.
Dr. Brennan's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Brennan's Medicare patients by sex, 2024
- Women3869%
- Men1731%
Chronic conditions among Dr. Brennan's Medicare patients, 2024
- High cholesterol75%
- High blood pressure67%
- Arthritis64%
- Diabetes35%
- Cancer33%
- Chronic kidney disease29%
- Anxiety22%
- Depression22%
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 66
Patient panel by sex, all payers
- Women50%
- Men50%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Brigit Kerry Brennan wrote 78 Medicare Part D claims in 2024
In 2024, Dr. Brennan wrote 78 Medicare Part D claims for 41 patients. 90% of them were for generic drugs. CMS names the drug for 11 of them, across 1 drug with 11 or more claims each, at $33 in total drug cost. In 2023, CMS named 65 claims across 3 drugs.
Dr. Brennan's Part D claims by kind of drug, 2024
- Generic70 claims90%
- Brand-name and other8 claims10%
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.
Drug classes CMS tracks in Dr. Brennan's Part D claims, 2024
- Opioids18%14 of 78 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 652024: 1183%
Drugs named by CMS: 1 in 2024, 3 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. Brigit Kerry Brennan scored 90 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 90 out of 100 for Dr. Brennan for performance year 2024, reported as part of a group.
Dr. Brennan's MIPS scores, performance year 2024
- 90of 100Final score
- 93.2of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 74of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Source: Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Brigit Kerry Brennan received $158 in industry payments from 2016 to 2023
CMS Open Payments shows 7 general payments to Dr. Brennan from 5 drug and device companies from 2016 to 2023. Food and beverage make up the largest share, 100% of the total. Mallinckrodt LLC paid the most, $66.
General payments to Dr. Brennan by program year, 2016 to 2023
Companies that paid Dr. Brennan the most, 2016 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Brigit Kerry Brennan graduated from University of Michigan Medical School
Dr. Brennan graduated from University of Michigan Medical School in 1989.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Brigit Kerry 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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| 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 | Clinician Public Reporting: Overall MIPS Performance (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. Brigit Kerry 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. Brigit Kerry Brennan's NPI number?
Dr. Brigit Kerry Brennan's NPI number is 1679567572. It was assigned on September 7, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Brigit Kerry Brennan?
Dr. Brigit Kerry Brennan is a general surgeon in Hastings, Michigan. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Brigit Kerry Brennan practice?
Dr. Brennan practices at 1005 W Green St 300 Corewell Health Pennock Hospital, Hastings, MI 49058-1725. Dr. Brennan also practices at 1009 W Green St, Hastings, MI 49058. Dr. Brennan's primary practice is Corewell Health Pennock Hospital Professional - Hastings (W Green St) in Hastings, Michigan.
What is Dr. Brigit Kerry Brennan's office phone number?
The practice phone on file for Dr. Brennan is (269) 948-8411.
What is Dr. Brigit Kerry Brennan's medical license number?
Dr. Brennan holds Michigan license 4301054210.
What medical group is Dr. Brigit Kerry Brennan part of?
Dr. Brennan is linked to Corewell Health Pennock Hospital.
Does Dr. Brigit Kerry Brennan accept Medicare?
Yes. CMS data shows Dr. Brennan billed Medicare for 32 services in 2024.
What is Dr. Brigit Kerry Brennan's MIPS score?
Dr. Brennan's MIPS final score for performance year 2024 is 90 out of 100, reported as part of a group.
How many Medicare patients does Dr. Brigit Kerry Brennan see?
CMS counts 55 Medicare patients who saw Dr. Brennan in 2024, with an average age of 73.
What services does Dr. Brigit Kerry Brennan bill to Medicare?
In 2024, Dr. Brennan's most billed Medicare services were surgery: digestive system (45380) and medicare service (G0105).
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Where did Dr. Brigit Kerry Brennan go to medical school?
Dr. Brennan graduated from University of Michigan Medical School in 1989.
What drugs does Dr. Brigit Kerry Brennan prescribe most?
In 2024 Medicare Part D data, Dr. Brennan's most prescribed drugs by claims were Hydrocodone-Acetaminophen.
Has Dr. Brigit Kerry Brennan received payments from drug or device companies?
CMS Open Payments shows $158 in general payments to Dr. Brennan from 5 companies from 2016 to 2023. The largest total came from Mallinckrodt LLC.
How long has Dr. Brigit Kerry Brennan been practicing?
Dr. Brennan graduated from medical school in 1989, 37 years ago.
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