Cyrus Michael Larson, DMD
General Practice Dentistry · Missoula, MT
Cyrus Michael Larson, DMD is a general practice dentistry with a practice address in Missoula, Montana, and NPI 1891096079, issued on Nov 4, 2010. Check the license (Montana 9630, as entered in NPPES) with the Montana board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Cyrus Michael Larson
- Credential
- DMD
- Primary taxonomy
- General Practice Dentistry 1223G0001X
- License number
- 9630 MT
Self-reported in NPPES; status is on the state search - Practice location
- 628 South Ave W, Missoula, MT 59801
- Phone
- (801) 310-7039
- Enumerated
- Nov 4, 2010
- Record last updated
- Nov 10, 2016 (not updated in 10 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 628 South Ave W
A shared address usually means a shared clinic or building; it does not show who employs whom.
- James Bigelow, D.D.S.General Practice Dentistry1780809962
- David Shelby, DDSGeneral Practice Dentistry1518097476
Verify Cyrus Michael Larson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Montana board licenses this profession
Search for license 9630Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
33% fewer Medicare Part D claims than the average general practice dentistry in 2024
56 Medicare Part D claims for 37 beneficiaries, against an average of 83 among the 70,290 providers of this specialty who prescribed in Part D. 12 claims were for opioids.
Most prescribed
- Amoxicillin22 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: $371.44
2 payments; by number, the most common kind was gift; the largest payer was Ultradent Products 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.
Cyrus Michael Larson among 465 general practice dentistry records in Montana
Cyrus Michael Larson, DMD 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 2010, is newer than 63% of them.
- NPI issued2010 · 63% of these records are older, 33% newer
- In a Medicare fileYes · 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).
48 general practice dentistry records list a practice address in Missoula
They are 48 of the 3,567 NPPES records with a practice address in Missoula, and 465 general practice dentistry records in Montana.
All 465 in Montana → Every provider in Missoula → General Practice Dentistry nationwide →
The 8 general practice dentistry records with the nearest ZIP codes
- James Bigelow, D.D.S.Missoula, MT 598011780809962
- Anne Breum, D.M.D.Missoula, MT 598011750386074
- Robert Delaney, DDSMissoula, MT 598011437202777
- Thomas Farago, DDSMissoula, MT 598011568676864
- Matthew Heaphy, DDSMissoula, MT 598011063584829
- Jason Helms, D.M.D.Missoula, MT 598011841384849
- Ryan Huckeby, D.M.D.Missoula, MT 598011073667663
- Kevin Miltko, DDSMissoula, MT 598011184706574
Common questions
What is Cyrus Michael Larson, DMD's NPI number?
Cyrus Michael Larson, DMD's National Provider Identifier (NPI) is 1891096079, issued on Nov 4, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Cyrus Michael Larson, DMD located?
The NPPES record lists a practice address at 628 South Ave W, Missoula, MT, 59801. Phone: (801) 310-7039. Providers update this record themselves, so call before visiting.
How can I verify Cyrus Michael Larson, DMD's license?
NPPES lists Montana license number 9630, as entered by the provider. Search the Montana board that licenses this profession; the NPPES record confirms identity only.
How much does Cyrus Michael Larson, DMD prescribe under Medicare Part D?
In 2024, Cyrus Michael Larson, DMD had 56 Medicare Part D claims for 37 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.