John Marshall III, DMD
- Part D claims, 2024
- 180
- Industry payments
- $116
- Affiliated sites
- 1
- Medical group
- 1
- State license
- 1
- Practice address
- 2315 Technology Dr Ste 101 Suite 101, O Fallon, MO 63368-7371
- Practice phone
- Call (636) 561-9255
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Winghaven Dental
Dental practice · O Fallon, Missouri
Find John Marshall'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.
John Marshall III is a dentist in Lorain, Ohio
John Marshall practices at Winghaven Dental in O Fallon, Missouri.
John Marshall's NPI, 1205356425, was assigned on June 20, 2017. John Marshall holds Missouri license 2018011363.
- NPI
- 1205356425NPI Registry (opens in a new tab)
- NPI enumeration date
- June 20, 2017
- NPI status
- Active
- Practice phone
- (636) 561-9255
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
John Marshall III practices in O Fallon and Lorain
John Marshall's primary practice is Winghaven Dental, at 2315 Technology Dr Ste 101 Suite 101, O Fallon, MO 63368-7371. The practice phone is (636) 561-9255. The NPI Registry lists John Marshall's practice address as 3700 Kolbe Rd, Lorain, OH 44053.
- Winghaven DentalPrimary2315 Technology Dr Ste 101 Suite 101, O Fallon, MO 63368-7371Phone(636) 561-9255
- NPI Registry address3700 Kolbe Rd, Lorain, OH 44053 · Lorain County
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
John Marshall III is affiliated with 1 site of care and 1 medical group
John Marshall's primary practice is Winghaven Dental in O Fallon, Missouri. Dmand AI also links John Marshall to 1 medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at John Marshall III's practice
Dmand AI tracks the electronic health record (EHR) system at each site where John Marshall practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Winghaven Dental | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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John Marshall III is one of 1,209 dentists in Ohio
Dentist is John Marshall's primary specialty in the NPI Registry, under taxonomy code 122300000X. John Marshall is licensed in Missouri.
Specialties and state licenses
- Dentist, MissouriPrimary
Dentists near John Marshall
Counts of dentists 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
John Marshall III's patients have a median age of 52
Across all payers, Dmand AI patient panel data puts John Marshall's median patient age at 52, with 50% women.
John Marshall's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 52
Patient panel by sex, all payers
- Women50%
- Men50%
Source: Dmand AI Patient Panel Data
John Marshall III wrote 180 Medicare Part D claims in 2024
In 2024, John Marshall wrote 180 Medicare Part D claims for 104 patients. 93% of them were for generic drugs.
John Marshall's Part D claims by kind of drug, 2024
- Generic168 claims93%
- Other12 claims7%
Drug classes CMS tracks in John Marshall's Part D claims, 2024
- Antibiotics64%116 of 180 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
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John Marshall III received $116 in industry payments in 2025
CMS Open Payments shows 3 general payments to John Marshall from 3 drug and device companies in 2025. Education make up the largest share, 72% of the total. Colgate Oral Pharmaceuticals, Inc. paid the most, $83.
General payments to John Marshall by kind, 2025 to 2025
- Education$8372%
- Food and beverage$3328%
Companies that paid John Marshall 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 John Marshall III'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 Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider (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 John Marshall III
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is John Marshall III's NPI number?
John Marshall III's NPI number is 1205356425. It was assigned on June 20, 2017, and it is active in the NPI Registry.
What does John Marshall III specialize in?
John Marshall III is a dentist in Lorain, Ohio. The primary specialty in the NPI Registry is Dentist (taxonomy code 122300000X).
Where does John Marshall III practice?
John Marshall practices at 2315 Technology Dr Ste 101 Suite 101, O Fallon, MO 63368-7371. John Marshall also practices at 3700 Kolbe Rd, Lorain, OH 44053. John Marshall's primary practice is Winghaven Dental in O Fallon, Missouri. Dmand AI also links John Marshall to 1 medical group.
What is John Marshall III's office phone number?
The practice phone on file for John Marshall is (636) 561-9255.
What is John Marshall III's medical license number?
John Marshall holds Missouri license 2018011363.
Has John Marshall III received payments from drug or device companies?
CMS Open Payments shows $116 in general payments to John Marshall from 3 companies from 2025 to 2025. The largest total came from Colgate Oral Pharmaceuticals, Inc.
How long has John Marshall III been practicing?
John Marshall's NPI was assigned in 2017.
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