Matthew Arnold Gahn, OD
- Medicare patients, 2024
- 329
- Part D claims, 2024
- 182
- Industry payments
- $17
- Affiliated sites
- 1
- State license
- 1
- Practice address
- 1001 E Superior St, Duluth, MN 55802
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Aspirus St. Luke's Clinic - Duluth - Urology - 1001 E Superior St - Urology - HOPD
Acute Care Hospital outpatient department · Duluth, Minnesota
Find Matthew Gahn'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.
Matthew Arnold Gahn is an optometrist in Duluth, Minnesota
Matthew Gahn practices at Aspirus St. Luke's Clinic - Duluth - Urology - 1001 E Superior St - Urology - HOPD in Duluth, Minnesota.
Matthew Gahn's NPI, 1548241938, was assigned on November 11, 2005. Matthew Gahn graduated from Southern California College of Optometry in 1986. Matthew Gahn holds Minnesota license 2080.
- NPI
- 1548241938NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4688686561
- NPI enumeration date
- November 11, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 66
- Medical school graduation
- 1986
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Matthew Arnold Gahn practices at Aspirus St. Luke's Clinic - Duluth - Urology - 1001 E Superior St - Urology - HOPD in Duluth, Minnesota
Matthew Gahn's primary practice is Aspirus St. Luke's Clinic - Duluth - Urology - 1001 E Superior St - Urology - HOPD, at 1001 E Superior St, Duluth, MN 55802.
- Aspirus St. Luke's Clinic - Duluth - Urology - 1001 E Superior St - Urology - HOPD1001 E Superior St, Duluth, MN 55802
Source: Dmand AI Affiliation Data
Matthew Arnold Gahn is affiliated with 1 site of care
Matthew Gahn's primary practice is Aspirus St. Luke's Clinic - Duluth - Urology - 1001 E Superior St - Urology - HOPD in Duluth, Minnesota.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Matthew Arnold Gahn's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Matthew Gahn practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Aspirus St. Luke's Clinic - Duluth - Urology - 1001 E Superior St - Urology - HOPD | Available with a free account |
Source: Dmand AI Technology Install Data
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Matthew Arnold Gahn is one of 1,006 optometrists in Minnesota
Optometrist is Matthew Gahn's primary specialty in the NPI Registry, under taxonomy code 152W00000X. Matthew Gahn is licensed in Minnesota.
Specialties and state licenses
- Optometrist, MinnesotaPrimary
Optometrists near Matthew Gahn
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
Matthew Arnold Gahn treated 329 Medicare patients in 2024, average age 75
CMS counts 329 Medicare patients who saw Matthew Gahn in 2024. The largest group is 65 to 74, with 158 patients. 61% of them have high blood pressure, and 60% have high cholesterol. 5% are also on Medicaid. Their average risk score is 0.91, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Matthew Gahn's median patient age at 68, with 60% women.
Matthew Gahn's Medicare patients by age, 2024
Matthew Gahn's Medicare patients by sex, 2024
- Women18356%
- Men14644%
Chronic conditions among Matthew Gahn's Medicare patients, 2024
- High blood pressure61%
- High cholesterol60%
- Arthritis26%
- Diabetes22%
- Ischemic heart disease16%
- Chronic kidney disease15%
- Mood disorders14%
- Anxiety13%
Share of Medicare patients with each condition. A patient can have several.
Matthew Gahn's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women60%
- Men39%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Matthew Arnold Gahn wrote 182 Medicare Part D claims in 2024
In 2024, Matthew Gahn wrote 182 Medicare Part D claims for 82 patients. 74% of them were for generic drugs.
Matthew Gahn's Part D claims by kind of drug, 2024
- Generic135 claims74%
- Brand-name47 claims26%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
Matthew Arnold Gahn ranks in the 73rd percentile for cataract surgery in Medicare
Matthew Gahn accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 93 procedures of cataract surgery by Matthew Gahn, more than 73% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Matthew Gahn ranks in Medicare procedure volume
- Cataract surgery
- 73rd percentile93 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Matthew Arnold Gahn received $17 in industry payments in 2025
CMS Open Payments shows 1 general payment to Matthew Gahn from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Alcon Laboratories Inc paid the most, $17.
Companies that paid Matthew Gahn the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Matthew Arnold Gahn graduated from Southern California College of Optometry
Matthew Gahn graduated from Southern California College of Optometry in 1986.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Matthew Arnold Gahn'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) |
| 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 Matthew Arnold Gahn
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Matthew Arnold Gahn's NPI number?
Matthew Arnold Gahn's NPI number is 1548241938. It was assigned on November 11, 2005, and it is active in the NPI Registry.
What does Matthew Arnold Gahn specialize in?
Matthew Arnold Gahn is an optometrist in Duluth, Minnesota. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).
Where does Matthew Arnold Gahn practice?
Matthew Gahn practices at 1001 E Superior St, Duluth, MN 55802. Matthew Gahn's primary practice is Aspirus St. Luke's Clinic - Duluth - Urology - 1001 E Superior St - Urology - HOPD in Duluth, Minnesota.
What is Matthew Arnold Gahn's medical license number?
Matthew Gahn holds Minnesota license 2080.
Does Matthew Arnold Gahn accept Medicare?
Yes. CMS lists Matthew Gahn as accepting Medicare assignment.
How many Medicare patients does Matthew Arnold Gahn see?
CMS counts 329 Medicare patients who saw Matthew Gahn in 2024, with an average age of 75.
Where did Matthew Arnold Gahn go to medical school?
Matthew Gahn graduated from Southern California College of Optometry in 1986.
Has Matthew Arnold Gahn received payments from drug or device companies?
CMS Open Payments shows $17 in general payments to Matthew Gahn from 1 company from 2025 to 2025. The largest total came from Alcon Laboratories Inc.
How long has Matthew Arnold Gahn been practicing?
Matthew Gahn graduated from medical school in 1986, 40 years ago.
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