NPPES file of Aug 9, 2026

Mark Lynn McCarthy, D.D.S.

General Practice Dentistry · Billings, MT

Mark Lynn McCarthy, D.D.S. is a general practice dentistry with a practice address in Billings, Montana, and NPI 1114050077, issued on Mar 13, 2007. Check the license (Montana DEN-DEN-LIC 11574, as entered in NPPES) with the Montana board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

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

NPPES recordNPPES file of Aug 9, 2026
1114050077
Name
Mark Lynn McCarthy
Credential
D.D.S.
Primary taxonomy
General Practice Dentistry 1223G0001X
License numbers
DEN-DEN-LIC 11574 MT
014302 MI
Self-reported in NPPES; status is on the state search
Practice location
2900 Central Ave Bldg 1, Billings, MT 59102
Phone
(406) 656-6100
Enumerated
Mar 13, 2007
Record last updated
Sep 21, 2016 (not updated in 10 years: call before relying on the address or phone)
Fax
(406) 656-8726
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 2900 Central Ave Bldg 1

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

  1. Rand Ollerton, D.D.S.General Practice Dentistry1740272772
  2. Matthew Schultz, DMDGeneral Practice Dentistry1134612252
  3. Charles Shumway, BS, DDSGeneral Practice Dentistry1629636543
  4. Deirdre Singer, DDSGeneral Practice Dentistry1447483144

Verify Mark Lynn McCarthy 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 11574
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Mark Lynn McCarthy among 465 general practice dentistry records in Montana

Mark Lynn McCarthy, 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 not. Its NPI, issued in 2007, is newer than 28% of them.

  • NPI issued2007 · 28% of these records are older, 44% newer
  • In a Medicare fileNo · 63% of these records are
  • In the CMS Doctors and Clinicians fileNo · 2% of these records are
  • Record last updated2016 · 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. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 general practice dentistry records with the nearest ZIP codes

  1. Allen Blackford, DDSBillings, MT 591021871606343
  2. Kevin Brewer, DDSBillings, MT 591021235228875
  3. James Casto, DDSBillings, MT 591021972667319
  4. Arlan Ellis, D.D.S.Billings, MT 591021497824916
  5. Neal Johnson, D.M.DBillings, MT 591021750302485
  6. Matt Larsen, D.M.D.Billings, MT 591021871691436
  7. James Luderitz, DDS MSBillings, MT 591021295897114
  8. David Mawyer, DDSBillings, MT 591021477643534

Common questions

What is Mark Lynn McCarthy, D.D.S.'s NPI number?

Mark Lynn McCarthy, D.D.S.'s National Provider Identifier (NPI) is 1114050077, issued on Mar 13, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Mark Lynn McCarthy, D.D.S. located?

The NPPES record lists a practice address at 2900 Central Ave Bldg 1, Billings, MT, 59102. Phone: (406) 656-6100. Providers update this record themselves, so call before visiting.

How can I verify Mark Lynn McCarthy, D.D.S.'s license?

NPPES lists Montana license number DEN-DEN-LIC 11574, as entered by the provider. Search the Montana board that licenses this profession; the NPPES record confirms identity 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. 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.