Thomas Nelson Gronau, DDS
- Part D claims, 2024
- 113
- Industry payments
- $14
- Affiliated sites
- 1
- State license
- 1
- Year NPI issued
- 2007
- Practice address
- 2107 Rombach Ave, Wilmington, OH 45177
- Practice phone
- Call (937) 383-1040
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Greater Tomorrow Health
Urgent Care Center · Wilmington, Ohio
Find Thomas Gronau'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.
Thomas Nelson Gronau is a dentist in Wilmington, Ohio
Thomas Gronau practices at Greater Tomorrow Health in Wilmington, Ohio.
Thomas Gronau's NPI, 1790900629, was assigned on April 16, 2007. Thomas Gronau holds Ohio license 19339.
- NPI
- 1790900629NPI Registry (opens in a new tab)
- NPI enumeration date
- April 16, 2007
- NPI status
- Active
- Practice phone
- (937) 383-1040
- 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 Affiliation Data
Thomas Nelson Gronau practices at Greater Tomorrow Health in Wilmington, Ohio
Thomas Gronau's primary practice is Greater Tomorrow Health, at 2107 Rombach Ave, Wilmington, OH 45177. The practice phone is (937) 383-1040.
- Greater Tomorrow Health2107 Rombach Ave, Wilmington, OH 45177Phone(937) 383-1040
Source: Dmand AI Affiliation Data
Thomas Nelson Gronau is affiliated with 1 site of care
Thomas Gronau's primary practice is Greater Tomorrow Health in Wilmington, Ohio.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Thomas Nelson Gronau's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Thomas Gronau practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Greater Tomorrow Health | Available with a free account |
Source: Dmand AI Technology Install Data
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Thomas Nelson Gronau is one of 1,209 dentists in Ohio
Dentist is Thomas Gronau's primary specialty in the NPI Registry, under taxonomy code 122300000X. Thomas Gronau is licensed in Ohio.
Specialties and state licenses
- Dentist, OhioPrimary
Dentists near Thomas Gronau
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
Thomas Nelson Gronau's patients have a median age of 24
Across all payers, Dmand AI patient panel data puts Thomas Gronau's median patient age at 24, with 50% women.
Thomas Gronau's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 24
Patient panel by sex, all payers
- Women50%
- Men50%
Source: Dmand AI Patient Panel Data
Thomas Nelson Gronau wrote 113 Medicare Part D claims in 2024
In 2024, Thomas Gronau wrote 113 Medicare Part D claims for 63 patients. 100% of them were for generic drugs.
Drug classes CMS tracks in Thomas Gronau's Part D claims, 2024
- Antibiotics59%67 of 113 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
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Thomas Nelson Gronau received $14 in industry payments in 2025
CMS Open Payments shows 1 general payment to Thomas Gronau from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Dentsply Sirona Inc paid the most, $14.
Companies that paid Thomas Gronau 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 Thomas Nelson Gronau'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 DataDmand AI Org Hierarchy Data |
| 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 Thomas Nelson Gronau
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Thomas Nelson Gronau's NPI number?
Thomas Nelson Gronau's NPI number is 1790900629. It was assigned on April 16, 2007, and it is active in the NPI Registry.
What does Thomas Nelson Gronau specialize in?
Thomas Nelson Gronau is a dentist in Wilmington, Ohio. The primary specialty in the NPI Registry is Dentist (taxonomy code 122300000X).
Where does Thomas Nelson Gronau practice?
Thomas Gronau practices at 2107 Rombach Ave, Wilmington, OH 45177. Thomas Gronau's primary practice is Greater Tomorrow Health in Wilmington, Ohio.
What is Thomas Nelson Gronau's office phone number?
The practice phone on file for Thomas Gronau is (937) 383-1040.
What is Thomas Nelson Gronau's medical license number?
Thomas Gronau holds Ohio license 19339.
Has Thomas Nelson Gronau received payments from drug or device companies?
CMS Open Payments shows $14 in general payments to Thomas Gronau from 1 company from 2025 to 2025. The largest total came from Dentsply Sirona Inc.
How long has Thomas Nelson Gronau been practicing?
Thomas Gronau's NPI was assigned in 2007.
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