Allen Gunnar Johnson, D.D.S.
General Practice Dentistry · Helena, MT
Allen Gunnar Johnson, D.D.S. is a general practice dentistry with a practice address in Helena, Montana, and NPI 1417361833, issued on Jun 13, 2014. Check the license (Montana DEN-DEN-LIC7779, as entered in NPPES) with the Montana board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Allen Gunnar Johnson
- Credential
- D.D.S.
- Primary taxonomy
- General Practice Dentistry 1223G0001X
- License numbers
- DEN-DEN-LIC7779 MT
DEN-DEN-LIC-7779 MT
Self-reported in NPPES; status is on the state search - Practice location
- 121 N Last Chance Gulch, Helena, MT 59601
- Phone
- (406) 443-5526
- Enumerated
- Jun 13, 2014
- Record last updated
- Mar 19, 2015 (not updated in 11 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest general practice dentistry records → All 465 in Montana → Look up another NPI →
Also registered at 121 N Last Chance Gulch
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Joshua Erekson, D.D.S.General Practice Dentistry1366762130
- Brandon Kiesling, D.M.DGeneral Practice Dentistry1669735320
- Ingrid McLellan, DMDGeneral Practice Dentistry1588820658
- Robert McNutt, MDRheumatology Physician1811989148
Verify Allen Gunnar Johnson 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-LIC7779Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
80% fewer Medicare Part D claims than the average general practice dentistry in 2024
17 Medicare Part D claims for 15 beneficiaries, against an average of 83 among the 70,290 providers of this specialty who prescribed in Part D.
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.
Allen Gunnar Johnson among 465 general practice dentistry records in Montana
Allen Gunnar Johnson, 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 2014, is newer than 75% of them.
- NPI issued2014 · 75% of these records are older, 24% newer
- In a Medicare fileYes · 63% of these records are
- In the CMS Doctors and Clinicians fileNo · 2% of these records are
- Record last updated2015 · 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).
46 general practice dentistry records list a practice address in Helena
They are 46 of the 1,591 NPPES records with a practice address in Helena, and 465 general practice dentistry records in Montana.
All 465 in Montana → Every provider in Helena → General Practice Dentistry nationwide →
The 8 general practice dentistry records with the nearest ZIP codes
- Nathan Ahlers, D.D.SHelena, MT 596011568526374
- Theodore Beck, DMDHelena, MT 596011417034067
- Marvin Bennett, D.D.S.Helena, MT 596011407875149
- Travis Elder, D.M.D.Helena, MT 596011154487718
- James Hicks, DDSHelena, MT 596011770675332
- Demitrius Latocha, DDSHelena, MT 596011427070564
- Christopher Loomis, DMDHelena, MT 596011861401077
- Sean Melton, D.D.S.Helena, MT 596011689721607
Common questions
What is Allen Gunnar Johnson, D.D.S.'s NPI number?
Allen Gunnar Johnson, D.D.S.'s National Provider Identifier (NPI) is 1417361833, issued on Jun 13, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Allen Gunnar Johnson, D.D.S. located?
The NPPES record lists a practice address at 121 N Last Chance Gulch, Helena, MT, 59601. Phone: (406) 443-5526. Providers update this record themselves, so call before visiting.
How can I verify Allen Gunnar Johnson, D.D.S.'s license?
NPPES lists Montana license number DEN-DEN-LIC7779, as entered by the provider. Search the Montana board that licenses this profession; the NPPES record confirms identity only.
How much does Allen Gunnar Johnson, D.D.S. prescribe under Medicare Part D?
In 2024, Allen Gunnar Johnson, D.D.S. had 17 Medicare Part D claims for 15 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.