Daniel Richard Brennan, PA
- Medicare patients, 2024
- 107
- Part D claims, 2024
- 978
- Hospital affiliations
- 2
- Industry payments
- $51
- Medical groups
- 3
- Practice address
- 100 Michigan St NE, Grand Rapids, MI 49503
- Practice phone
- Call (616) 391-1774
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Daniel 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.
Daniel Richard Brennan is a physician assistant in Grand Rapids, Michigan
Daniel Brennan practices at Corewell Health Grand Rapids Hospitals - Butterworth in Grand Rapids, Michigan, part of Corewell Health.
Daniel Brennan's NPI, 1851808620, was assigned on January 3, 2018. Daniel Brennan holds Michigan license 5601008528.
- NPI
- 1851808620NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5294094686
- NPI enumeration date
- January 3, 2018
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (616) 391-1774
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 35
- Medical school graduation
- 2017
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Daniel Richard Brennan practices at Corewell Health Grand Rapids Hospitals - Butterworth in Grand Rapids, Michigan
Daniel Brennan's primary practice is Corewell Health Grand Rapids Hospitals - Butterworth, at 100 Michigan St NE, Grand Rapids, MI 49503 in Kent County. The practice phone is (616) 391-1774.
- Corewell Health Grand Rapids Hospitals - Butterworth100 Michigan St NE, Grand Rapids, MI 49503 · Kent CountyPhone(616) 391-1774
Source: Dmand AI Affiliation Data
Daniel Richard Brennan is affiliated with 3 sites of care and 3 medical groups
Daniel Brennan's primary practice is Corewell Health Grand Rapids Hospitals - Butterworth in Grand Rapids, Michigan, part of Corewell Health. Daniel Brennan is also affiliated with Corewell Health Ludington Hospital. The medical group on file is Corewell Health Medical Group West. Dmand AI also links Daniel Brennan to 2 more medical groups and 1 group practice or clinic, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Daniel Richard Brennan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Daniel Brennan practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Corewell Health Grand Rapids Hospitals - Butterworth | Available with a free account |
| +2 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Daniel Richard Brennan is one of 5,857 physician assistants in Michigan
Physician assistant is Daniel Brennan's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Daniel Brennan is licensed in Michigan.
Specialties and state licenses
- Physician assistant, MichiganPrimary
Physician assistants near Daniel Brennan
Counts of physician assistants 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
Daniel Richard Brennan treated 107 Medicare patients in 2024, average age 70
CMS counts 107 Medicare patients who saw Daniel Brennan in 2024. The largest group is 65 to 74, with 66 patients. 75% of them have high cholesterol, and 74% have high blood pressure. 14% are also on Medicaid. Their average risk score is 1.28, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Daniel Brennan's median patient age at 57, with 45% women.
Daniel Brennan's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Daniel Brennan's Medicare patients by sex, 2024
- Women4845%
- Men5955%
Chronic conditions among Daniel Brennan's Medicare patients, 2024
- High cholesterol75%
- High blood pressure74%
- Arthritis52%
- Mood disorders44%
- Depression41%
- Diabetes39%
- Anxiety33%
- Ischemic heart disease29%
Share of Medicare patients with each condition. A patient can have several.
Daniel 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 57
Patient panel by sex, all payers
- Women45%
- Men54%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Daniel Richard Brennan wrote 978 Medicare Part D claims in 2024
In 2024, Daniel Brennan wrote 978 Medicare Part D claims for 219 patients. 85% of them were for generic drugs.
Daniel Brennan's Part D claims by kind of drug, 2024
- Generic833 claims85%
- Brand-name and other145 claims15%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
Daniel Richard Brennan offers telehealth to Medicare patients
Daniel Brennan accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Daniel Brennan as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Daniel Richard Brennan received $51 in industry payments in 2025
CMS Open Payments shows 2 general payments to Daniel Brennan from 2 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Harmony Biosciences LLC paid the most, $26.
Companies that paid Daniel Brennan the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Daniel Richard 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 DataDmand AI Org Hierarchy Data |
| 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 (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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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 Daniel Richard 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 Daniel Richard Brennan's NPI number?
Daniel Richard Brennan's NPI number is 1851808620. It was assigned on January 3, 2018, and it is active in the NPI Registry.
What does Daniel Richard Brennan specialize in?
Daniel Richard Brennan is a physician assistant in Grand Rapids, Michigan. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Daniel Richard Brennan practice?
Daniel Brennan practices at 100 Michigan St NE, Grand Rapids, MI 49503. Daniel Brennan's primary practice is Corewell Health Grand Rapids Hospitals - Butterworth in Grand Rapids, Michigan, part of Corewell Health. Dmand AI also links Daniel Brennan to 2 medical groups and 1 group practice or clinic.
What is Daniel Richard Brennan's office phone number?
The practice phone on file for Daniel Brennan is (616) 391-1774.
What is Daniel Richard Brennan's medical license number?
Daniel Brennan holds Michigan license 5601008528.
Which hospitals is Daniel Richard Brennan affiliated with?
Daniel Brennan practices at Corewell Health Grand Rapids Hospitals - Butterworth in Grand Rapids, Michigan. Daniel Brennan is also affiliated with Corewell Health Ludington Hospital.
What medical group is Daniel Richard Brennan part of?
Daniel Brennan is linked to Corewell Health Medical Group West. Dmand AI links Daniel Brennan to 2 more medical groups.
Does Daniel Richard Brennan accept Medicare?
Yes. CMS lists Daniel Brennan as accepting Medicare assignment.
Does Daniel Richard Brennan offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Daniel Brennan as offering telehealth services.
How many Medicare patients does Daniel Richard Brennan see?
CMS counts 107 Medicare patients who saw Daniel Brennan in 2024, with an average age of 70.
Has Daniel Richard Brennan received payments from drug or device companies?
CMS Open Payments shows $51 in general payments to Daniel Brennan from 2 companies from 2025 to 2025. The largest total came from Harmony Biosciences LLC.
How long has Daniel Richard Brennan been practicing?
Daniel Brennan graduated from medical school in 2017, 9 years ago.
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