David Marsh, OD
- Industry payments
- $82
- Affiliated sites
- 1
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2025
- Practice address
- 2510 W 9th Ave, Oshkosh, WI 54904
- Practice phone
- Call (920) 426-2020
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Dr J J Marsh Ltd
Oshkosh, Wisconsin
Find David Marsh'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.
David Marsh is an optometrist in Oshkosh, Wisconsin
David Marsh practices at Dr J J Marsh Ltd in Oshkosh, Wisconsin.
David Marsh's NPI, 1811872161, was assigned on August 6, 2025. David Marsh graduated from Ohio State University - College of Optometry in 2025. David Marsh holds Wisconsin license 4099-35.
- NPI
- 1811872161NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2062918469
- NPI enumeration date
- August 6, 2025
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (920) 426-2020
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 27
- Medical school graduation
- 2025
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
David Marsh practices at Dr J J Marsh Ltd in Oshkosh, Wisconsin
David Marsh's primary practice is Dr J J Marsh Ltd, at 2510 W 9th Ave, Oshkosh, WI 54904 in Winnebago County. The practice phone is (920) 426-2020.
- Dr J J Marsh Ltd2510 W 9th Ave, Oshkosh, WI 54904 · Winnebago CountyPhone(920) 426-2020
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
David Marsh is affiliated with 2 sites of care and 1 medical group
David Marsh's primary practice is Dr J J Marsh Ltd in Oshkosh, Wisconsin. Dmand AI also links David Marsh to 1 group practice or clinic and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at David Marsh's practice
Dmand AI tracks the electronic health record (EHR) system at each site where David Marsh practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dr J J Marsh Ltd | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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David Marsh is one of 946 optometrists in Wisconsin
Optometrist is David Marsh's primary specialty in the NPI Registry, under taxonomy code 152W00000X. David Marsh is licensed in Wisconsin.
Specialties and state licenses
- Optometrist, WisconsinPrimary
Optometrists near David Marsh
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
David Marsh's patients have a median age of 69
Across all payers, Dmand AI patient panel data puts David Marsh's median patient age at 69, with 48% women.
David Marsh'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
- Women48%
- Men52%
Source: Dmand AI Patient Panel Data
How David Marsh takes part in Medicare
David Marsh 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)
David Marsh received $82 in industry payments in 2025
CMS Open Payments shows 3 general payments to David Marsh from 3 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Alcon Laboratories Inc paid the most, $32.
Companies that paid David Marsh the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
David Marsh graduated from Ohio State University - College of Optometry
David Marsh graduated from Ohio State University - College of Optometry in 2025.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for David Marsh'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| 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 David Marsh
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is David Marsh's NPI number?
David Marsh's NPI number is 1811872161. It was assigned on August 6, 2025, and it is active in the NPI Registry.
What does David Marsh specialize in?
David Marsh is an optometrist in Oshkosh, Wisconsin. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).
Where does David Marsh practice?
David Marsh practices at 2510 W 9th Ave, Oshkosh, WI 54904. David Marsh's primary practice is Dr J J Marsh Ltd in Oshkosh, Wisconsin. Dmand AI also links David Marsh to 1 group practice or clinic and 1 medical group.
What is David Marsh's office phone number?
The practice phone on file for David Marsh is (920) 426-2020.
What is David Marsh's medical license number?
David Marsh holds Wisconsin license 4099-35.
Does David Marsh accept Medicare?
Yes. CMS lists David Marsh as accepting Medicare assignment.
Where did David Marsh go to medical school?
David Marsh graduated from Ohio State University - College of Optometry in 2025.
Has David Marsh received payments from drug or device companies?
CMS Open Payments shows $82 in general payments to David Marsh from 3 companies from 2025 to 2025. The largest total came from Alcon Laboratories Inc.
How long has David Marsh been practicing?
David Marsh graduated from medical school in 2025, 1 years ago.
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