Greg B. Markeson, OD
- Industry payments
- $107
- Affiliated sites
- 2
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2006
- Practice address
- 4000 Luxottica Pl, Mason, OH 45040
- Practice phone
- Call (513) 765-6000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Luxottica of America Inc.
Mason, Ohio
Find Greg Markeson'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.
Greg B. Markeson is an optometrist in Mason, Ohio
Greg Markeson practices at Luxottica of America Inc. in Mason, Ohio.
Greg Markeson's NPI, 1205917473, was assigned on October 17, 2006. Greg Markeson holds Minnesota license 2557.
- NPI
- 1205917473NPI Registry (opens in a new tab)
- NPI enumeration date
- October 17, 2006
- NPI status
- Active
- Practice phone
- (513) 765-6000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Greg B. Markeson practices at Luxottica of America Inc. in Mason, Ohio
Greg Markeson's primary practice is Luxottica of America Inc., at 4000 Luxottica Pl, Mason, OH 45040 in Warren County. The practice phone is (513) 765-6000.
- Luxottica of America Inc.4000 Luxottica Pl, Mason, OH 45040 · Warren CountyPhone(513) 765-6000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Greg B. Markeson is affiliated with 3 sites of care and 1 medical group
Greg Markeson's primary practice is Luxottica of America Inc. in Mason, Ohio. Dmand AI also links Greg Markeson to 1 physician office, 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 Greg B. Markeson's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Greg Markeson practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Luxottica of America Inc. | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Greg B. Markeson is one of 2,779 optometrists in Ohio
Optometrist is Greg Markeson's primary specialty in the NPI Registry, under taxonomy code 152W00000X. Greg Markeson is licensed in Minnesota.
Specialties and state licenses
- Optometrist, MinnesotaPrimary
Optometrists near Greg Markeson
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
Greg B. Markeson's patients have a median age of 54
Across all payers, Dmand AI patient panel data puts Greg Markeson's median patient age at 54, with 55% women.
Greg Markeson'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
- Women55%
- Men44%
Source: Dmand AI Patient Panel Data
Greg B. Markeson received $107 in industry payments in 2025
CMS Open Payments shows 1 general payment to Greg Markeson from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. CooperVision Inc. paid the most, $107.
Companies that paid Greg Markeson 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 Greg B. Markeson'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 |
| 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 Greg B. Markeson
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Greg B. Markeson's NPI number?
Greg B. Markeson's NPI number is 1205917473. It was assigned on October 17, 2006, and it is active in the NPI Registry.
What does Greg B. Markeson specialize in?
Greg B. Markeson is an optometrist in Mason, Ohio. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).
Where does Greg B. Markeson practice?
Greg Markeson practices at 4000 Luxottica Pl, Mason, OH 45040. Greg Markeson's primary practice is Luxottica of America Inc. in Mason, Ohio. Dmand AI also links Greg Markeson to 1 physician office, 1 group practice or clinic and 1 medical group.
What is Greg B. Markeson's office phone number?
The practice phone on file for Greg Markeson is (513) 765-6000.
What is Greg B. Markeson's medical license number?
Greg Markeson holds Minnesota license 2557.
Has Greg B. Markeson received payments from drug or device companies?
CMS Open Payments shows $107 in general payments to Greg Markeson from 1 company from 2025 to 2025. The largest total came from CooperVision Inc.
How long has Greg B. Markeson been practicing?
Greg Markeson's NPI was assigned in 2006.
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