Diana Stewart, D.M.D.
Dentist · Miles City, MT
Diana Stewart, D.M.D. is a dentist with a practice address in Miles City, Montana, and NPI 1598141020, issued on Aug 6, 2015. Check the license with the Montana board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Diana Stewart
- Credential
- D.M.D.
- Primary taxonomy
- Dentist 122300000X
- License number
- D10335 OR
Self-reported in NPPES; status is on the state search - Practice location
- 2904 Mallet LN, Miles City, MT 59301
- Phone
- (406) 233-1241
- Enumerated
- Aug 6, 2015
- Record last updated
- Aug 21, 2023
- Entity
- Type 1 · individual
8 nearest dentist records → All 266 in Montana → Look up another NPI →
Also registered at 2904 Mallet LN
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Chase Yerger, DMDDentist1497069074
Verify Diana Stewart in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Montana board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
78% fewer Medicare Part D claims than the average dentist in 2024
19 Medicare Part D claims for 16 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.
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.
Diana Stewart among 266 dentist records in Montana
Diana Stewart, D.M.D. is one of 266 dentist 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 2015, is newer than 74% of them.
- NPI issued2015 · 74% of these records are older, 23% newer
- In a Medicare fileYes · 63% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2023 · 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 Montana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
3 dentist records list a practice address in Miles City
They are 3 of the 240 NPPES records with a practice address in Miles City, and 266 dentist records in Montana.
All 266 in Montana → Every provider in Miles City → Dentist nationwide →
The 8 dentist records with the nearest ZIP codes
- Eric Hogan, DDSMiles City, MT 593011023145216
- Chase Yerger, DMDMiles City, MT 593011497069074
- Mary Rutherford Youngbauer, DDSForsyth, MT 593271447347869
- Aaron Stensvad, DMDForsyth, MT 593271346235306
- Donald Youngbauer, DDSForsyth, MT 593271649340886
- Matthew Calkins, D.D.SGlendive, MT 593301598177115
- Patrick Lahiff, DDSGlendive, MT 593301144895848
- Nathan Sickler, DMDGlendive, MT 593301558116137
Common questions
What is Diana Stewart, D.M.D.'s NPI number?
Diana Stewart, D.M.D.'s National Provider Identifier (NPI) is 1598141020, issued on Aug 6, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Diana Stewart, D.M.D. located?
The NPPES record lists a practice address at 2904 Mallet LN, Miles City, MT, 59301. Phone: (406) 233-1241. Providers update this record themselves, so call before visiting.
How can I verify Diana Stewart, D.M.D.'s license?
Search the Montana board that licenses this profession; the NPPES record confirms identity only.
How much does Diana Stewart, D.M.D. prescribe under Medicare Part D?
In 2024, Diana Stewart, D.M.D. had 19 Medicare Part D claims for 16 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.