Dr. Marc Ohlhausen, MD
- Part D claims, 2024
- 144
- Hospital affiliations
- 4
- Industry payments
- $311
- Medical group
- 1
- State license
- 1
- Practice address
- 1216 Second Street Southwest, Rochester, MN 55902
- Practice phone
- Call (507) 255-5123
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Ohlhausen'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. Marc Ohlhausen is an ophthalmologist in Rochester, Minnesota
Dr. Ohlhausen practices at Mayo Clinic Hospital, Saint Marys Campus in Rochester, Minnesota, part of Mayo Clinic.
Dr. Ohlhausen's NPI, 1205405545, was assigned on June 22, 2021. Dr. Ohlhausen holds Minnesota license 79410.
- NPI
- 1205405545NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3870991656
- NPI enumeration date
- June 22, 2021
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (507) 255-5123
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 31
- Medical school graduation
- 2021
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Marc Ohlhausen practices at Mayo Clinic Hospital, Saint Marys Campus in Rochester, Minnesota
Dr. Ohlhausen's primary practice is Mayo Clinic Hospital, Saint Marys Campus, at 1216 Second Street Southwest, Rochester, MN 55902 in Olmsted County. The practice phone is (507) 255-5123.
- Mayo Clinic Hospital, Saint Marys Campus1216 Second Street Southwest, Rochester, MN 55902 · Olmsted CountyPhone(507) 255-5123
Source: Dmand AI Affiliation Data
Dr. Marc Ohlhausen is affiliated with 5 sites of care and 1 medical group
Dr. Ohlhausen's primary practice is Mayo Clinic Hospital, Saint Marys Campus in Rochester, Minnesota, part of Mayo Clinic. Dr. Ohlhausen is also affiliated with Olmsted Medical Center. The medical group on file is Mayo Clinic. Dmand AI also links Dr. Ohlhausen to 2 more hospitals and 1 hospice, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Marc Ohlhausen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ohlhausen practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mayo Clinic Hospital, Saint Marys Campus | Available with a free account |
| +4 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Mayo Clinic and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Marc Ohlhausen is one of 346 ophthalmologists in Minnesota
Ophthalmology is Dr. Ohlhausen's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. Ohlhausen is licensed in Minnesota.
Specialties and state licenses
- Ophthalmology, MinnesotaPrimary
Ophthalmologists near Dr. Ohlhausen
Counts of ophthalmologists 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. Marc Ohlhausen's patients have a median age of 80
Across all payers, Dmand AI patient panel data puts Dr. Ohlhausen's median patient age at 80, with 56% women.
Dr. Ohlhausen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 80
Patient panel by sex, all payers
- Women56%
- Men44%
Source: Dmand AI Patient Panel Data
Dr. Marc Ohlhausen wrote 144 Medicare Part D claims in 2024
In 2024, Dr. Ohlhausen wrote 144 Medicare Part D claims for 44 patients. 74% of them were for generic drugs. CMS names the drug for 55 of them, across 4 drugs with 11 or more claims each, at $964 in total drug cost.
Dr. Ohlhausen's Part D claims by kind of drug, 2024
- Generic106 claims74%
- Brand-name38 claims26%
Dr. Ohlhausen'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.
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
How Dr. Marc Ohlhausen takes part in Medicare
Dr. Ohlhausen 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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Dr. Marc Ohlhausen received $311 in industry payments in 2025
CMS Open Payments shows 4 general payments to Dr. Ohlhausen from 2 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Bausch & Lomb Americas Inc. paid the most, $266.
Companies that paid Dr. Ohlhausen 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 Dr. Marc Ohlhausen'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 Data |
| 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)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 Dr. Marc Ohlhausen
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. Marc Ohlhausen's NPI number?
Dr. Marc Ohlhausen's NPI number is 1205405545. It was assigned on June 22, 2021, and it is active in the NPI Registry.
What kind of doctor is Dr. Marc Ohlhausen?
Dr. Marc Ohlhausen is an ophthalmologist in Rochester, Minnesota. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. Marc Ohlhausen practice?
Dr. Ohlhausen practices at 1216 Second Street Southwest, Rochester, MN 55902. Dr. Ohlhausen's primary practice is Mayo Clinic Hospital, Saint Marys Campus in Rochester, Minnesota, part of Mayo Clinic. Dmand AI also links Dr. Ohlhausen to 2 hospitals and 1 hospice.
What is Dr. Marc Ohlhausen's office phone number?
The practice phone on file for Dr. Ohlhausen is (507) 255-5123.
What is Dr. Marc Ohlhausen's medical license number?
Dr. Ohlhausen holds Minnesota license 79410.
Which hospitals is Dr. Marc Ohlhausen affiliated with?
Dr. Ohlhausen practices at Mayo Clinic Hospital, Saint Marys Campus in Rochester, Minnesota. Dr. Ohlhausen is also affiliated with Olmsted Medical Center. Dmand AI links Dr. Ohlhausen to 2 more hospitals.
What medical group is Dr. Marc Ohlhausen part of?
Dr. Ohlhausen is linked to Mayo Clinic.
Does Dr. Marc Ohlhausen accept Medicare?
Yes. CMS lists Dr. Ohlhausen as accepting Medicare assignment.
What drugs does Dr. Marc Ohlhausen prescribe most?
In 2024 Medicare Part D data, Dr. Ohlhausen's most prescribed drugs by claims were Dorzolamide-Timolol, Latanoprost and Timolol Maleate.
Has Dr. Marc Ohlhausen received payments from drug or device companies?
CMS Open Payments shows $311 in general payments to Dr. Ohlhausen from 2 companies from 2025 to 2025. The largest total came from Bausch & Lomb Americas Inc.
How long has Dr. Marc Ohlhausen been practicing?
Dr. Ohlhausen graduated from medical school in 2021, 5 years ago.
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