John Marshall Hartzog, DMD
General Practice Dentistry · Alexandria, AL
John Marshall Hartzog, DMD is a general practice dentistry with a practice address in Alexandria, Alabama, and NPI 1710554878, issued on Jun 8, 2021. Check the license (Alabama D-0006900-C1, as entered in NPPES) with the Alabama board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- John Marshall Hartzog
- Credential
- DMD
- Primary taxonomy
- General Practice Dentistry 1223G0001X
- License number
- D-0006900-C1 AL
Self-reported in NPPES; status is on the state search - Practice location
- 654 Valley Cub Dr, Alexandria, AL 36250
- Phone
- (256) 847-1111
- Enumerated
- Jun 8, 2021
- Record last updated
- Nov 21, 2023
- Entity
- Type 1 · individual
8 nearest general practice dentistry records → All 1,350 in Alabama → Look up another NPI →
Verify John Marshall Hartzog in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Alabama board licenses this profession
Search for license D-0006900-C1Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.4 times the Medicare Part D claims of the average general practice dentistry in 2024
196 Medicare Part D claims for 121 beneficiaries, against an average of 83 among the 70,290 providers of this specialty who prescribed in Part D. 34 claims were for opioids.
Most prescribed
- Amoxicillin85 claims
- Hydrocodone-Acetaminophen34 claims
- Azithromycin19 claims
- Chlorhexidine Gluconate16 claims
- Amoxicillin-Clavulanate Potass13 claims
- Clindamycin Hcl12 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $51.40
2 payments; by number, the most common kind was food and beverage; the largest payer was Patterson Companies, Inc. The 41,669 providers of this specialty with any payment received $597.01 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
John Marshall Hartzog among 1,350 general practice dentistry records in Alabama
John Marshall Hartzog, DMD is one of 1,350 general practice dentistry records with a practice address in Alabama. 68% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 87% of them.
- NPI issued2021 · 87% of these records are older, 11% newer
- In a Medicare fileYes · 68% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2023 · 77% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223G0001X and a Alabama practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1 general practice dentistry record lists a practice address in Alexandria
They are 1 of the 11 NPPES records with a practice address in Alexandria, and 1,350 general practice dentistry records in Alabama.
All 1,350 in Alabama → Every provider in Alexandria → General Practice Dentistry nationwide →
The 8 general practice dentistry records with the nearest ZIP codes
- Dakota Clark, DMDJacksonville, AL 362651417449349
- Bruce Cunningham, DMDJacksonville, AL 362651215950753
- Larry Carmichael, DMDLineville, AL 362661710081963
- Benjamin Ingram, D.M.D.Piedmont, AL 362721376539536
- Jennifer Proctor, DMDPiedmont, AL 362721487347316
- David Towers, DMDRoanoke, AL 362741538230479
- Michael Edwards, DMDWedowee, AL 362781164555918
- Afsheen Afzal, DMDAnniston, AL 362071821321621
Common questions
What is John Marshall Hartzog, DMD's NPI number?
John Marshall Hartzog, DMD's National Provider Identifier (NPI) is 1710554878, issued on Jun 8, 2021. An NPI identifies a provider in billing; it is not a license.
Where is John Marshall Hartzog, DMD located?
The NPPES record lists a practice address at 654 Valley Cub Dr, Alexandria, AL, 36250. Phone: (256) 847-1111. Providers update this record themselves, so call before visiting.
How can I verify John Marshall Hartzog, DMD's license?
NPPES lists Alabama license number D-0006900-C1, as entered by the provider. Search the Alabama board that licenses this profession; the NPPES record confirms identity only.
How much does John Marshall Hartzog, DMD prescribe under Medicare Part D?
In 2024, John Marshall Hartzog, DMD had 196 Medicare Part D claims for 121 beneficiaries; the average among general practice dentistry prescribers was 83. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.