Mark Weston, M.D.
Emergency Medicine Physician · Missoula, MT
Mark Weston, M.D. is an emergency medicine physician with a practice address in Missoula, Montana, and NPI 1275620072, issued on Oct 5, 2006. Check the license (Montana 8264, as entered in NPPES) on the Montana Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Mark Weston
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 8264 MT
Self-reported in NPPES; status is on the state search - Practice location
- 500 W Broadway St, Missoula, MT 59802
- Phone
- (406) 721-3522
- Enumerated
- Oct 5, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 243 in Montana → Look up another NPI →
Also registered at 500 W Broadway St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Mark Weston in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMontana Board of Medical Examiners
Search for license 8264Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
88% fewer Medicare Part D claims than the average emergency medicine physician in 2024
27 Medicare Part D claims, against an average of 226 among the 54,106 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.
Mark Weston among 243 emergency medicine physician records in Montana
Mark Weston, M.D. is one of 243 emergency medicine physician records with a practice address in Montana. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 1% of them.
- NPI issued2006 · 1% of these records are older, 55% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 60% of these records are
- Record last updated2007 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Montana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Emergency Medicine Physician providers in Montana
There are 243 emergency medicine physician records in Montana.
All 243 in Montana → Every provider in Missoula → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Thomas Bulger, MDMissoula, MT 598021699847855
- Timothy Donovan, MDMissoula, MT 598021962581371
- James Gardner, MDMissoula, MT 598021346311214
- Elizabeth Grimley, M.D.Missoula, MT 598021124134861
- Warren Guffin, M.D.Missoula, MT 598021366541724
- Gregory Kazemi, M.D.Missoula, MT 598021720179690
- Michael Kremkau, MDMissoula, MT 598021417032731
- Robert McDevitt, MDMissoula, MT 598021255348678
Common questions
What is Mark Weston, M.D.'s NPI number?
Mark Weston, M.D.'s National Provider Identifier (NPI) is 1275620072, issued on Oct 5, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark Weston, M.D. located?
The NPPES record lists a practice address at 500 W Broadway St, Missoula, MT, 59802. Phone: (406) 721-3522. Providers update this record themselves, so call before visiting.
How can I verify Mark Weston, M.D.'s license?
NPPES lists Montana license number 8264, as entered by the provider. Search the Montana Board of Medical Examiners at https://ebiz.mt.gov/POL/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Mark Weston, M.D. prescribe under Medicare Part D?
In 2024, Mark Weston, M.D. had 27 Medicare Part D claims; the average among emergency medicine physician prescribers was 226. 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.