Daniel Marsac, OD
- Medicare patients, 2024
- 212
- Part D claims, 2024
- 51
- Industry payments
- $85
- Affiliated sites
- 1
- Medical group
- 1
- Practice address
- 3630 11th Ave Nw, Rochester, MN 55901-4276
- Practice phone
- Call (507) 288-2457
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Rochester Family Eye Clinic
Eye care practice · Rochester, Minnesota
Find Daniel Marsac'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 Marsac is an optometrist in Rochester, Minnesota
Daniel Marsac practices at Rochester Family Eye Clinic in Rochester, Minnesota.
Daniel Marsac's NPI, 1275935439, was assigned on September 19, 2014. Daniel Marsac holds Michigan license 4901004870.
- NPI
- 1275935439NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6305147125
- NPI enumeration date
- September 19, 2014
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (507) 288-2457
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 38
- Medical school graduation
- 2014
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Daniel Marsac practices at Rochester Family Eye Clinic in Rochester, Minnesota
Daniel Marsac's primary practice is Rochester Family Eye Clinic, at 3630 11th Ave Nw, Rochester, MN 55901-4276. The practice phone is (507) 288-2457.
- Rochester Family Eye Clinic3630 11th Ave Nw, Rochester, MN 55901-4276Phone(507) 288-2457
Source: Dmand AI Affiliation Data
Daniel Marsac is affiliated with 1 site of care and 1 medical group
Daniel Marsac's primary practice is Rochester Family Eye Clinic in Rochester, Minnesota. Dmand AI also links Daniel Marsac to 1 medical group, named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Daniel Marsac's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Daniel Marsac practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Rochester Family Eye Clinic | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Daniel Marsac is one of 1,006 optometrists in Minnesota
Optometrist is Daniel Marsac's primary specialty in the NPI Registry, under taxonomy code 152W00000X. Daniel Marsac is licensed in Michigan.
Specialties and state licenses
- Optometrist, MichiganPrimary
Optometrists near Daniel Marsac
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 Marsac treated 212 Medicare patients in 2024, average age 75
CMS counts 212 Medicare patients who saw Daniel Marsac in 2024. The largest group is 65 to 74, with 99 patients. 65% of them have high blood pressure, and 65% have high cholesterol. Their average risk score is 1.00, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Daniel Marsac's median patient age at 69, with 57% women.
Daniel Marsac's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Daniel Marsac's Medicare patients by sex, 2024
- Women13061%
- Men8239%
Chronic conditions among Daniel Marsac's Medicare patients, 2024
- High blood pressure65%
- High cholesterol65%
- Chronic kidney disease34%
- Arthritis29%
- Diabetes24%
- Ischemic heart disease23%
- Mood disorders18%
- Atrial fibrillation17%
Share of Medicare patients with each condition. A patient can have several.
Daniel Marsac's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women57%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Daniel Marsac wrote 51 Medicare Part D claims in 2024
In 2024, Daniel Marsac wrote 51 Medicare Part D claims for 17 patients. 55% of them were for generic drugs.
Daniel Marsac's Part D claims by kind of drug, 2024
- Generic28 claims55%
- Brand-name23 claims45%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Daniel Marsac takes part in Medicare
Daniel Marsac accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Daniel Marsac received $85 in industry payments in 2025
CMS Open Payments shows 4 general payments to Daniel Marsac 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, $66.
Companies that paid Daniel Marsac 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 Marsac'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) |
| 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 Marsac
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 Marsac's NPI number?
Daniel Marsac's NPI number is 1275935439. It was assigned on September 19, 2014, and it is active in the NPI Registry.
What does Daniel Marsac specialize in?
Daniel Marsac is an optometrist in Rochester, Minnesota. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).
Where does Daniel Marsac practice?
Daniel Marsac practices at 3630 11th Ave Nw, Rochester, MN 55901-4276. Daniel Marsac's primary practice is Rochester Family Eye Clinic in Rochester, Minnesota. Dmand AI also links Daniel Marsac to 1 medical group.
What is Daniel Marsac's office phone number?
The practice phone on file for Daniel Marsac is (507) 288-2457.
What is Daniel Marsac's medical license number?
Daniel Marsac holds Michigan license 4901004870.
Does Daniel Marsac accept Medicare?
Yes. CMS lists Daniel Marsac as accepting Medicare assignment.
How many Medicare patients does Daniel Marsac see?
CMS counts 212 Medicare patients who saw Daniel Marsac in 2024, with an average age of 75.
Has Daniel Marsac received payments from drug or device companies?
CMS Open Payments shows $85 in general payments to Daniel Marsac from 2 companies from 2025 to 2025. The largest total came from CooperVision Inc.
How long has Daniel Marsac been practicing?
Daniel Marsac graduated from medical school in 2014, 12 years ago.
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