John Frederick Hamrick, DMD
- Part D claims, 2024
- 1,217
- Industry payments
- $44
- Affiliated sites
- 1
- Medical group
- 1
- State license
- 1
- Practice address
- 1 Charis Dr, Greenville, SC 29615-6615
- Practice phone
- Call (864) 271-4330
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Periodontics Of Greenville
Dental practice · Greenville, South Carolina
Find John Hamrick'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 Frederick Hamrick is a periodontist in Mauldin, South Carolina
John Hamrick practices at Periodontics Of Greenville in Greenville, South Carolina.
John Hamrick's NPI, 1639210305, was assigned on February 8, 2007. John Hamrick holds South Carolina license 2496.
- NPI
- 1639210305NPI Registry (opens in a new tab)
- NPI enumeration date
- February 8, 2007
- NPI status
- Active
- Practice phone
- (864) 271-4330
- 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 Frederick Hamrick practices in Greenville and Mauldin
John Hamrick's primary practice is Periodontics of Greenville, at 1 Charis Dr, Greenville, SC 29615-6615. The practice phone is (864) 271-4330. The NPI Registry lists John Hamrick's practice address as 300 W Butler Rd, Mauldin, SC 29662.
- Periodontics of GreenvillePrimary1 Charis Dr, Greenville, SC 29615-6615Phone(864) 271-4330
- NPI Registry address300 W Butler Rd, Mauldin, SC 29662 · Greenville County
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
John Frederick Hamrick is affiliated with 1 site of care and 1 medical group
John Hamrick's primary practice is Periodontics Of Greenville in Greenville, South Carolina. Dmand AI also links John Hamrick 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 Frederick Hamrick's practice
Dmand AI tracks the electronic health record (EHR) system at each site where John Hamrick practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Periodontics Of Greenville | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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John Frederick Hamrick is one of 47 periodontists in South Carolina
Periodontics is John Hamrick's primary specialty in the NPI Registry, under taxonomy code 1223P0300X. John Hamrick is licensed in South Carolina.
Specialties and state licenses
- Periodontist, South CarolinaPrimary
Periodontists near John Hamrick
Counts of periodontists 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 Frederick Hamrick's patients have a median age of 75
Across all payers, Dmand AI patient panel data puts John Hamrick's median patient age at 75, with 0% women.
John Hamrick's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 75
Patient panel by sex, all payers
- Women0%
- Men100%
Source: Dmand AI Patient Panel Data
John Frederick Hamrick wrote 1,217 Medicare Part D claims in 2024
In 2024, John Hamrick wrote 1,217 Medicare Part D claims for 320 patients. 99% of them were for generic drugs.
John Hamrick's Part D claims by kind of drug, 2024
- Generic1,209 claims99%
- Brand-name and other8 claims1%
Drug classes CMS tracks in John Hamrick's Part D claims, 2024
- Opioids10%122 of 1,217 claims
- Antibiotics29%357 of 1,217 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 Frederick Hamrick received $44 in industry payments in 2025
CMS Open Payments shows 2 general payments to John Hamrick from 2 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. BioHorizons Implant Systems Inc. paid the most, $25.
Companies that paid John Hamrick 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 Frederick Hamrick'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 Frederick Hamrick
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 Frederick Hamrick's NPI number?
John Frederick Hamrick's NPI number is 1639210305. It was assigned on February 8, 2007, and it is active in the NPI Registry.
What does John Frederick Hamrick specialize in?
John Frederick Hamrick is a periodontist in Mauldin, South Carolina. The primary specialty in the NPI Registry is Periodontist (taxonomy code 1223P0300X).
Where does John Frederick Hamrick practice?
John Hamrick practices at 1 Charis Dr, Greenville, SC 29615-6615. John Hamrick also practices at 300 W Butler Rd, Mauldin, SC 29662. John Hamrick's primary practice is Periodontics Of Greenville in Greenville, South Carolina. Dmand AI also links John Hamrick to 1 medical group.
What is John Frederick Hamrick's office phone number?
The practice phone on file for John Hamrick is (864) 271-4330.
What is John Frederick Hamrick's medical license number?
John Hamrick holds South Carolina license 2496.
Has John Frederick Hamrick received payments from drug or device companies?
CMS Open Payments shows $44 in general payments to John Hamrick from 2 companies from 2025 to 2025. The largest total came from BioHorizons Implant Systems Inc.
How long has John Frederick Hamrick been practicing?
John Hamrick's NPI was assigned in 2007.
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