Daniel M. Brennan, OD
- Medicare patients, 2024
- 81
- Part D claims, 2024
- 23
- Industry payments
- $417
- Affiliated sites
- 1
- Medical group
- 1
- Practice address
- 2100 Troy Rd, Edwardsville, IL 62025-2595
- Practice phone
- Call (618) 656-8888
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Edwardsville Vision Center
Eye care practice · Edwardsville, Illinois
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 M. Brennan is an optometrist in Edwardsville, Illinois
Daniel Brennan practices at Edwardsville Vision Center in Edwardsville, Illinois.
Daniel Brennan's NPI, 1770006736, was assigned on July 21, 2017. Daniel Brennan holds Illinois license 046.011135.
- NPI
- 1770006736NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5890227789
- NPI enumeration date
- July 21, 2017
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (618) 656-8888
- 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 M. Brennan practices at Edwardsville Vision Center in Edwardsville, Illinois
Daniel Brennan's primary practice is Edwardsville Vision Center, at 2100 Troy Rd, Edwardsville, IL 62025-2595. The practice phone is (618) 656-8888.
- Edwardsville Vision Center2100 Troy Rd, Edwardsville, IL 62025-2595Phone(618) 656-8888
Source: Dmand AI Affiliation Data
Daniel M. Brennan is affiliated with 1 site of care and 1 medical group
Daniel Brennan's primary practice is Edwardsville Vision Center in Edwardsville, Illinois. Dmand AI also links Daniel Brennan to 1 medical group, named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Daniel M. Brennan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Daniel Brennan practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Edwardsville Vision Center | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Daniel M. Brennan is one of 2,194 optometrists in Illinois
Optometrist is Daniel Brennan's primary specialty in the NPI Registry, under taxonomy code 152W00000X. Daniel Brennan is licensed in Illinois.
Specialties and state licenses
- Optometrist, IllinoisPrimary
Optometrists near Daniel Brennan
Counts of optometrists 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 M. Brennan treated 81 Medicare patients in 2024, average age 74
CMS counts 81 Medicare patients who saw Daniel Brennan in 2024. The largest group is 65 to 74, with 51 patients. 73% of them have high cholesterol, and 58% have high blood pressure. Their average risk score is 0.88, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Daniel Brennan's median patient age at 54, with 51% women.
Daniel Brennan's Medicare patients by age, 2024
Daniel Brennan's Medicare patients by sex, 2024
- Women4353%
- Men3847%
Chronic conditions among Daniel Brennan's Medicare patients, 2024
- High cholesterol73%
- High blood pressure58%
- Arthritis40%
- Anxiety20%
- Mood disorders20%
- Depression19%
- Cancer17%
- Ischemic heart disease17%
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 54
Patient panel by sex, all payers
- Women51%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Daniel M. Brennan wrote 23 Medicare Part D claims in 2024
In 2024, Daniel Brennan wrote 23 Medicare Part D claims for 11 patients. 48% of them were for generic drugs.
Daniel Brennan's Part D claims by kind of drug, 2024
- Generic11 claims48%
- Brand-name12 claims52%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Daniel M. Brennan takes part in Medicare
Daniel Brennan accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Cataract surgery: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Daniel M. Brennan received $417 in industry payments in 2025
CMS Open Payments shows 8 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. CooperVision Inc. paid the most, $258.
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 M. 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 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)Doctors and Clinicians Utilization Data (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 M. 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 M. Brennan's NPI number?
Daniel M. Brennan's NPI number is 1770006736. It was assigned on July 21, 2017, and it is active in the NPI Registry.
What does Daniel M. Brennan specialize in?
Daniel M. Brennan is an optometrist in Edwardsville, Illinois. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).
Where does Daniel M. Brennan practice?
Daniel Brennan practices at 2100 Troy Rd, Edwardsville, IL 62025-2595. Daniel Brennan's primary practice is Edwardsville Vision Center in Edwardsville, Illinois. Dmand AI also links Daniel Brennan to 1 medical group.
What is Daniel M. Brennan's office phone number?
The practice phone on file for Daniel Brennan is (618) 656-8888.
What is Daniel M. Brennan's medical license number?
Daniel Brennan holds Illinois license 046.011135.
Does Daniel M. Brennan accept Medicare?
Yes. CMS lists Daniel Brennan as accepting Medicare assignment.
How many Medicare patients does Daniel M. Brennan see?
CMS counts 81 Medicare patients who saw Daniel Brennan in 2024, with an average age of 74.
Has Daniel M. Brennan received payments from drug or device companies?
CMS Open Payments shows $417 in general payments to Daniel Brennan from 2 companies from 2025 to 2025. The largest total came from CooperVision Inc.
How long has Daniel M. Brennan been practicing?
Daniel Brennan graduated from medical school in 2017, 9 years ago.
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