John Thomas Marshall, D.M.D.
Dentist · Columbus, OH
John Thomas Marshall, D.M.D. is a dentist with a practice address in Columbus, Ohio, and NPI 1942443767, issued on Apr 8, 2009. Check the license (Ohio 30-022872, as entered in NPPES) with the Ohio board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- John Thomas Marshall
- Credential
- D.M.D.
- Primary taxonomy
- Dentist 122300000X
- License number
- 30-022872 OH
Self-reported in NPPES; status is on the state search - Practice location
- 5180 E Main St Ste D, Columbus, OH 43213
- Phone
- (614) 836-1033
- Enumerated
- Apr 8, 2009
- Record last updated
- Jan 23, 2019 (not updated in 7 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest dentist records → All 2,780 in Ohio → Look up another NPI →
Verify John Thomas Marshall in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Ohio board licenses this profession
Search for license 30-022872Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
20% fewer Medicare Part D claims than the average dentist in 2024
69 Medicare Part D claims for 42 beneficiaries, against an average of 86 among the 51,021 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Amoxicillin28 claims
- Chlorhexidine Gluconate17 claims
- Clindamycin Hcl11 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: $159.79
4 payments; by number, the most common kind was food and beverage; the largest payer was Patterson Companies, Inc. The 31,974 providers of this specialty with any payment received $540.36 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 Thomas Marshall among 2,780 dentist records in Ohio
John Thomas Marshall, D.M.D. is one of 2,780 dentist records with a practice address in Ohio. 66% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 47% of them.
- NPI issued2009 · 47% of these records are older, 50% newer
- In a Medicare fileYes · 66% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2019 · 70% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 122300000X and a Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Dentist providers in Ohio
There are 2,780 dentist records in Ohio.
All 2,780 in Ohio → Every provider in Columbus → Dentist nationwide →
The 8 dentist records with the nearest ZIP codes
- Hannah Baik, DMDColumbus, OH 432131033776844
- Maurina Brooks, DDSColumbus, OH 432131831681998
- William Henderson, DMDColumbus, OH 432131740501048
- Kimberly Holmes, DDSWhitehall, OH 432131669047114
- William Lenz, DDSColumbus, OH 432131316011497
- Jennifer Meyer, DDSWhitehall, OH 432131205022522
- Ruby Pandey, DDSWhitehall, OH 432131497861850
- Prashanthi Vadhi, DDSColumbus, OH 432131396810503
Common questions
What is John Thomas Marshall, D.M.D.'s NPI number?
John Thomas Marshall, D.M.D.'s National Provider Identifier (NPI) is 1942443767, issued on Apr 8, 2009. An NPI identifies a provider in billing; it is not a license.
Where is John Thomas Marshall, D.M.D. located?
The NPPES record lists a practice address at 5180 E Main St Ste D, Columbus, OH, 43213. Phone: (614) 836-1033. Providers update this record themselves, so call before visiting.
How can I verify John Thomas Marshall, D.M.D.'s license?
NPPES lists Ohio license number 30-022872, as entered by the provider. Search the Ohio board that licenses this profession; the NPPES record confirms identity only.
How much does John Thomas Marshall, D.M.D. prescribe under Medicare Part D?
In 2024, John Thomas Marshall, D.M.D. had 69 Medicare Part D claims for 42 beneficiaries; the average among dentist prescribers was 86. 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.