NPPES file of Aug 9, 2026

Cassidy Jezlyn Bummer, DDS

General Practice Dentistry · Poplar, MT

Cassidy Jezlyn Bummer, DDS is a general practice dentistry with a practice address in Poplar, Montana, and NPI 1558094813, issued on Jul 5, 2022. Check the license (Montana DEN-DEN-LIC-23705, as entered in NPPES) with the Montana board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1558094813
Name
Cassidy Jezlyn Bummer
Credential
DDS
Primary taxonomy
General Practice Dentistry 1223G0001X
License number
DEN-DEN-LIC-23705 MT
Self-reported in NPPES; status is on the state search
Practice location
107 H Street E, Poplar, MT 59255
Phone
(406) 768-3491
Enumerated
Jul 5, 2022
Record last updated
Jul 29, 2025
Fax
(406) 768-3603
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 107 H Street E

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Regina Blevins, PHARM-D, RPHPharmacist1992979298
  2. Jonathan GilbertPediatrics Physician1033140686
  3. Bradley Moran, PHARMDPharmacist1205919354

Verify Cassidy Jezlyn Bummer in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Montana board licenses this profession
    Search for license DEN-DEN-LIC-23705
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Montana license search

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51% fewer Medicare Part D claims than the average general practice dentistry in 2024

41 Medicare Part D claims for 16 beneficiaries, against an average of 83 among the 70,290 providers of this specialty who prescribed in Part D.

  1. Cassidy Bummer41
  2. Specialty average83

Most prescribed

  1. Ibuprofen20 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.

Cassidy Jezlyn Bummer among 465 general practice dentistry records in Montana

Cassidy Jezlyn Bummer, DDS 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 2022, is newer than 90% of them.

  • NPI issued2022 · 90% of these records are older, 8% newer
  • In a Medicare fileYes · 63% of these records are
  • In the CMS Doctors and Clinicians fileNo · 2% of these records are
  • Record last updated2025 · 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).

2 general practice dentistry records list a practice address in Poplar

They are 2 of the 109 NPPES records with a practice address in Poplar, and 465 general practice dentistry records in Montana.

The 8 general practice dentistry records with the nearest ZIP codes

  1. Jeffrey Meckfessel, DDSPoplar, MT 592551548338767
  2. Jesse Cole, DDSScobey, MT 592631962672287
  3. Richard Fink, DMDSidney, MT 592701366507378
  4. Anthony Thiessen, D.M.D.Sidney, MT 592701093950669
  5. Jolynn Reylingcapdeville, DMDGlasgow, MT 592301093502296
  6. John AyeMiles City, MT 593011497316897
  7. Robin Hogan, DDSMiles City, MT 593011942337050
  8. Barrie Matthews, D.M.D.Miles City, MT 593011699852251

Common questions

What is Cassidy Jezlyn Bummer, DDS's NPI number?

Cassidy Jezlyn Bummer, DDS's National Provider Identifier (NPI) is 1558094813, issued on Jul 5, 2022. An NPI identifies a provider in billing; it is not a license.

Where is Cassidy Jezlyn Bummer, DDS located?

The NPPES record lists a practice address at 107 H Street E, Poplar, MT, 59255. Phone: (406) 768-3491. Providers update this record themselves, so call before visiting.

How can I verify Cassidy Jezlyn Bummer, DDS's license?

NPPES lists Montana license number DEN-DEN-LIC-23705, as entered by the provider. Search the Montana board that licenses this profession; the NPPES record confirms identity only.

How much does Cassidy Jezlyn Bummer, DDS prescribe under Medicare Part D?

In 2024, Cassidy Jezlyn Bummer, DDS had 41 Medicare Part D claims for 16 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.