Gary Charles Leonard, DDS
- Part D claims, 2024
- 336
- Industry payments
- $161
- Affiliated sites
- 1
- State license
- 1
- Year NPI issued
- 2007
- Practice address
- 401 S Main St Ste B4 Suite B4, Alpharetta, GA 30009-1958
- Practice phone
- Call (770) 475-7207
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Gary C. Leonard, DDS
Physician office · Alpharetta, Georgia
Find Gary Leonard'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.
Gary Charles Leonard is a general practice dentistry in Chicago, Illinois
Gary Leonard practices at Gary C. Leonard, DDS in Alpharetta, Georgia.
Gary Leonard's NPI, 1255469789, was assigned on February 28, 2007. Gary Leonard holds Georgia license 9750.
- NPI
- 1255469789NPI Registry (opens in a new tab)
- NPI enumeration date
- February 28, 2007
- NPI status
- Active
- Practice phone
- (770) 475-7207
- 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
Gary Charles Leonard practices in Alpharetta and Chicago
Gary Leonard's primary practice is Gary C. Leonard, DDS, at 401 S Main St Ste B4 Suite B4, Alpharetta, GA 30009-1958. The practice phone is (770) 475-7207. The NPI Registry lists Gary Leonard's practice address as 33 S State St, Chicago, IL 60603.
- Gary C. Leonard, DDSPrimary401 S Main St Ste B4 Suite B4, Alpharetta, GA 30009-1958Phone(770) 475-7207
- NPI Registry address33 S State St, Chicago, IL 60603 · Cook County
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Gary Charles Leonard is affiliated with 1 site of care
Gary Leonard's primary practice is Gary C. Leonard, DDS in Alpharetta, Georgia.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Gary Charles Leonard's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Gary Leonard practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Gary C. Leonard, DDS | Available with a free account |
Source: Dmand AI Technology Install Data
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Gary Charles Leonard is one of 2,353 general practice dentistrys in Illinois
General practice is Gary Leonard's primary specialty in the NPI Registry, under taxonomy code 1223G0001X. Gary Leonard is licensed in Georgia.
Specialties and state licenses
- General practice dentistry, GeorgiaPrimary
General practice dentistrys near Gary Leonard
Counts of general practice dentistrys 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
Gary Charles Leonard's patients have a median age of 73
Across all payers, Dmand AI patient panel data puts Gary Leonard's median patient age at 73, with 50% women.
Gary Leonard's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 73
Patient panel by sex, all payers
- Women50%
- Men50%
Source: Dmand AI Patient Panel Data
Gary Charles Leonard wrote 336 Medicare Part D claims in 2024
In 2024, Gary Leonard wrote 336 Medicare Part D claims for 152 patients. 99% of them were for generic drugs.
Gary Leonard's Part D claims by kind of drug, 2024
- Generic334 claims99%
- Brand-name and other2 claims1%
Drug classes CMS tracks in Gary Leonard's Part D claims, 2024
- Opioids14%47 of 336 claims
- Antibiotics70%236 of 336 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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Gary Charles Leonard received $161 in industry payments in 2025
CMS Open Payments shows 2 general payments to Gary Leonard from 2 drug and device companies in 2025. Food and beverage make up the largest share, 58% of the total. Zimvie Inc. paid the most, $93.
General payments to Gary Leonard by kind, 2025 to 2025
- Food and beverage$9358%
- Gifts$6742%
Companies that paid Gary Leonard 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 Gary Charles Leonard'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 DataDmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation 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 Gary Charles Leonard
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Gary Charles Leonard's NPI number?
Gary Charles Leonard's NPI number is 1255469789. It was assigned on February 28, 2007, and it is active in the NPI Registry.
What does Gary Charles Leonard specialize in?
Gary Charles Leonard is a general practice dentistry in Chicago, Illinois. The primary specialty in the NPI Registry is General Practice Dentistry (taxonomy code 1223G0001X).
Where does Gary Charles Leonard practice?
Gary Leonard practices at 401 S Main St Ste B4 Suite B4, Alpharetta, GA 30009-1958. Gary Leonard also practices at 33 S State St, Chicago, IL 60603. Gary Leonard's primary practice is Gary C. Leonard, DDS in Alpharetta, Georgia.
What is Gary Charles Leonard's office phone number?
The practice phone on file for Gary Leonard is (770) 475-7207.
What is Gary Charles Leonard's medical license number?
Gary Leonard holds Georgia license 9750.
Has Gary Charles Leonard received payments from drug or device companies?
CMS Open Payments shows $161 in general payments to Gary Leonard from 2 companies from 2025 to 2025. The largest total came from Zimvie Inc.
How long has Gary Charles Leonard been practicing?
Gary Leonard's NPI was assigned in 2007.
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