John Marshall Hartzog, DMD
- Part D claims, 2024
- 196
- Industry payments
- $32
- Affiliated sites
- 1
- Medical group
- 1
- State license
- 1
- Practice address
- 654 Valley Cub Dr, Alexandria, AL 36250-4200
- Practice phone
- Call (256) 847-1111
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Alexandra Dental
Dental practice · Alexandria, Alabama
Find John Hartzog'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 Hartzog is a general practice dentistry in Alexandria, Alabama
John Hartzog practices at Alexandra Dental in Alexandria, Alabama.
John Hartzog's NPI, 1710554878, was assigned on June 8, 2021. John Hartzog holds Alabama license D-0006900-C1.
- NPI
- 1710554878NPI Registry (opens in a new tab)
- NPI enumeration date
- June 8, 2021
- NPI status
- Active
- Practice phone
- (256) 847-1111
- 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 Hartzog practices at Alexandra Dental in Alexandria, Alabama
John Hartzog's primary practice is Alexandra Dental, at 654 Valley Cub Dr, Alexandria, AL 36250-4200. The practice phone is (256) 847-1111.
- Alexandra Dental654 Valley Cub Dr, Alexandria, AL 36250-4200Phone(256) 847-1111
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
John Marshall Hartzog is affiliated with 1 site of care and 1 medical group
John Hartzog's primary practice is Alexandra Dental in Alexandria, Alabama. Dmand AI also links John Hartzog 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 Hartzog's practice
Dmand AI tracks the electronic health record (EHR) system at each site where John Hartzog practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Alexandra 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 Hartzog is one of 711 general practice dentistrys in Alabama
General practice is John Hartzog's primary specialty in the NPI Registry, under taxonomy code 1223G0001X. John Hartzog is licensed in Alabama.
Specialties and state licenses
- General practice dentistry, AlabamaPrimary
General practice dentistrys near John Hartzog
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
John Marshall Hartzog's patients have a median age of 44
Across all payers, Dmand AI patient panel data puts John Hartzog's median patient age at 44, with 100% women.
John Hartzog's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 44
Patient panel by sex, all payers
- Women100%
- Men0%
Source: Dmand AI Patient Panel Data
John Marshall Hartzog wrote 196 Medicare Part D claims in 2024
In 2024, John Hartzog wrote 196 Medicare Part D claims for 121 patients. 99% of them were for generic drugs.
John Hartzog's Part D claims by kind of drug, 2024
- Generic195 claims99%
- Brand-name and other1 claims1%
Drug classes CMS tracks in John Hartzog's Part D claims, 2024
- Opioids17%34 of 196 claims
- Antibiotics67%131 of 196 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 Hartzog received $32 in industry payments in 2025
CMS Open Payments shows 2 general payments to John Hartzog 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, $32.
Companies that paid John Hartzog 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 Hartzog'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) |
| 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 Hartzog
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 Hartzog's NPI number?
John Marshall Hartzog's NPI number is 1710554878. It was assigned on June 8, 2021, and it is active in the NPI Registry.
What does John Marshall Hartzog specialize in?
John Marshall Hartzog is a general practice dentistry in Alexandria, Alabama. The primary specialty in the NPI Registry is General Practice Dentistry (taxonomy code 1223G0001X).
Where does John Marshall Hartzog practice?
John Hartzog practices at 654 Valley Cub Dr, Alexandria, AL 36250-4200. John Hartzog's primary practice is Alexandra Dental in Alexandria, Alabama. Dmand AI also links John Hartzog to 1 medical group.
What is John Marshall Hartzog's office phone number?
The practice phone on file for John Hartzog is (256) 847-1111.
What is John Marshall Hartzog's medical license number?
John Hartzog holds Alabama license D-0006900-C1.
Has John Marshall Hartzog received payments from drug or device companies?
CMS Open Payments shows $32 in general payments to John Hartzog from 1 company from 2025 to 2025. The largest total came from Dentsply Sirona Inc.
How long has John Marshall Hartzog been practicing?
John Hartzog's NPI was assigned in 2021.
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