John A. Gennantonio, DDS
- Industry payments
- $14
- Affiliated sites
- 2
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2005
- Practice address
- 1319 Nagel Rd, Cincinnati, OH 45255-3101
- Practice phone
- Call (513) 474-6777
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Sea Of Smiles
Dental practice · Cincinnati, Ohio
Find John Gennantonio'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 A. Gennantonio is a pediatric dentist in Cincinnati, Ohio
John Gennantonio practices at Sea Of Smiles in Cincinnati, Ohio.
John Gennantonio's NPI, 1093701245, was assigned on September 23, 2005. John Gennantonio holds Ohio license 19420.
- NPI
- 1093701245NPI Registry (opens in a new tab)
- NPI enumeration date
- September 23, 2005
- NPI status
- Active
- Practice phone
- (513) 474-6777
- 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 A. Gennantonio practices at Sea of Smiles in Cincinnati, Ohio
John Gennantonio's primary practice is Sea of Smiles, at 1319 Nagel Rd, Cincinnati, OH 45255-3101. The practice phone is (513) 474-6777.
- Sea of Smiles1319 Nagel Rd, Cincinnati, OH 45255-3101Phone(513) 474-6777
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
John A. Gennantonio is affiliated with 2 sites of care and 1 medical group
John Gennantonio's primary practice is Sea Of Smiles in Cincinnati, Ohio. Dmand AI also links John Gennantonio to 1 physician office and 1 medical group, each 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 A. Gennantonio's practice
Dmand AI tracks the electronic health record (EHR) system at each site where John Gennantonio practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Sea Of Smiles | 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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John A. Gennantonio is one of 219 pediatric dentists in Ohio
Pediatric dentistry is John Gennantonio's primary specialty in the NPI Registry, under taxonomy code 1223P0221X. John Gennantonio is licensed in Ohio.
Specialties and state licenses
- Pediatric dentist, OhioPrimary
Pediatric dentists near John Gennantonio
Counts of pediatric 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 A. Gennantonio received $14 in industry payments in 2025
CMS Open Payments shows 1 general payment to John Gennantonio from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Philips Electronics North America Corporation paid the most, $14.
Companies that paid John Gennantonio 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 A. Gennantonio'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 DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (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 A. Gennantonio
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 A. Gennantonio's NPI number?
John A. Gennantonio's NPI number is 1093701245. It was assigned on September 23, 2005, and it is active in the NPI Registry.
What does John A. Gennantonio specialize in?
John A. Gennantonio is a pediatric dentist in Cincinnati, Ohio. The primary specialty in the NPI Registry is Pediatric Dentist (taxonomy code 1223P0221X).
Where does John A. Gennantonio practice?
John Gennantonio practices at 1319 Nagel Rd, Cincinnati, OH 45255-3101. John Gennantonio's primary practice is Sea Of Smiles in Cincinnati, Ohio. Dmand AI also links John Gennantonio to 1 physician office and 1 medical group.
What is John A. Gennantonio's office phone number?
The practice phone on file for John Gennantonio is (513) 474-6777.
What is John A. Gennantonio's medical license number?
John Gennantonio holds Ohio license 19420.
Has John A. Gennantonio received payments from drug or device companies?
CMS Open Payments shows $14 in general payments to John Gennantonio from 1 company from 2025 to 2025. The largest total came from Philips Electronics North America Corporation.
How long has John A. Gennantonio been practicing?
John Gennantonio's NPI was assigned in 2005.
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