John David Clark, D.D.S.
General Practice Dentistry · Billings, MT
John David Clark, D.D.S. is a general practice dentistry with a practice address in Billings, Montana, and NPI 1144775412, issued on Aug 16, 2016. Check the license (Montana DEN-DEN-LIC-13444, as entered in NPPES) with the Montana board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- John David Clark
- Credential
- D.D.S.
- Primary taxonomy
- General Practice Dentistry 1223G0001X
- License numbers
- DEN-DEN-LIC-13444 MT
112730 AK
Self-reported in NPPES; status is on the state search - Practice location
- 2900 Central Ave, Billings, MT 59102
- Phone
- (406) 656-6100
- Enumerated
- Aug 16, 2016
- Record last updated
- Jul 21, 2022
- Entity
- Type 1 · individual
8 nearest general practice dentistry records → All 465 in Montana → Look up another NPI →
Also registered at 2900 Central Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Gregory England, D.D.S.Orthodontics and Dentofacial Orthopedics Dentistry1801272471
- James Galea, DDS MSDOrthodontics and Dentofacial Orthopedics Dentistry1376962134
Verify John David Clark in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Montana board licenses this profession
Search for license DEN-DEN-LIC-13444Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
23% fewer Medicare Part D claims than the average general practice dentistry in 2024
64 Medicare Part D claims for 45 beneficiaries, against an average of 83 among the 70,290 providers of this specialty who prescribed in Part D.
Most prescribed
- Amoxicillin34 claims
- Azithromycin11 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: $34.75
1 payment: food and beverage; the largest payer was Dentsply Sirona 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 David Clark among 465 general practice dentistry records in Montana
John David Clark, D.D.S. is one of 465 general practice dentistry records with a practice address in Montana. 63% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 77% of them.
- NPI issued2016 · 77% of these records are older, 20% newer
- In a Medicare fileYes · 63% of these records are
- In the CMS Doctors and Clinicians fileNo · 2% of these records are
- Record last updated2022 · 75% 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 Montana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
86 general practice dentistry records list a practice address in Billings
They are 86 of the 4,035 NPPES records with a practice address in Billings, and 465 general practice dentistry records in Montana.
All 465 in Montana → Every provider in Billings → General Practice Dentistry nationwide →
The 8 general practice dentistry records with the nearest ZIP codes
- Allen Blackford, DDSBillings, MT 591021871606343
- Kevin Brewer, DDSBillings, MT 591021235228875
- James Casto, DDSBillings, MT 591021972667319
- Arlan Ellis, D.D.S.Billings, MT 591021497824916
- Neal Johnson, D.M.DBillings, MT 591021750302485
- Matt Larsen, D.M.D.Billings, MT 591021871691436
- James Luderitz, DDS MSBillings, MT 591021295897114
- David Mawyer, DDSBillings, MT 591021477643534
Common questions
What is John David Clark, D.D.S.'s NPI number?
John David Clark, D.D.S.'s National Provider Identifier (NPI) is 1144775412, issued on Aug 16, 2016. An NPI identifies a provider in billing; it is not a license.
Where is John David Clark, D.D.S. located?
The NPPES record lists a practice address at 2900 Central Ave, Billings, MT, 59102. Phone: (406) 656-6100. Providers update this record themselves, so call before visiting.
How can I verify John David Clark, D.D.S.'s license?
NPPES lists Montana license number DEN-DEN-LIC-13444, as entered by the provider. Search the Montana board that licenses this profession; the NPPES record confirms identity only.
How much does John David Clark, D.D.S. prescribe under Medicare Part D?
In 2024, John David Clark, D.D.S. had 64 Medicare Part D claims for 45 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.