David Miles O'Briant, M.D.
Internal Medicine Physician · Missoula, MT
David Miles O'Briant, M.D. is an internal medicine physician with a practice address in Missoula, Montana, and NPI 1124292214, issued on Apr 18, 2008. Check the license (Montana MED-PHYS-LIC-88249, as entered in NPPES) on the Montana Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- David Miles O'Briant
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- MED-PHYS-LIC-88249 MT
2012-00766 NC
Self-reported in NPPES; status is on the state search - Practice location
- 500 W Broadway St, Missoula, MT 59802
- Phone
- (406) 543-7271
- Enumerated
- Apr 18, 2008
- Record last updated
- Oct 4, 2025
- Fax
- (406) 327-1834
- Medicaid ID
- 1124292214 NC
- Medicare enrollment
- Enrolled (PECOS I20140115000588); accepts Medicare assignment
- Medical or professional school
- Eastern Virginia Medical School, 2008
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 324 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 David Miles O'Briant in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMontana Board of Medical Examiners
Search for license MED-PHYS-LIC-88249Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through 2 group practices
- Caromont Medical Group IncGastonia, NC
- Novant Health Medical Group, LLCCharlotte, NC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
David Miles O'Briant among 324 internal medicine physician records in Montana
David Miles O'Briant, M.D. is one of 324 internal medicine physician records with a practice address in Montana. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 62% of them.
- NPI issued2008 · 62% of these records are older, 34% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2008 · median 2006 among the 191 with a school on file
- Record last updated2025 · 52% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Montana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
47 internal medicine physician records list a practice address in Missoula
They are 47 of the 3,567 NPPES records with a practice address in Missoula, and 324 internal medicine physician records in Montana.
All 324 in Montana → Every provider in Missoula → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- J Caldwell, MDMissoula, MT 598021518911924
- Michael Curtis, MDMissoula, MT 598021447291109
- Mark Dalton, D.O.Missoula, MT 598021093782138
- Kasey Harbine, MDMissoula, MT 598021598717563
- Hugh Hughson, MDMissoula, MT 598021528012937
- Mary Langenderfer, MDMissoula, MT 598021871548537
- Lisa Milch, M.D.Missoula, MT 598021679527105
- Anne Murphy, MDMissoula, MT 598021124074232
Common questions
What is David Miles O'Briant, M.D.'s NPI number?
David Miles O'Briant, M.D.'s National Provider Identifier (NPI) is 1124292214, issued on Apr 18, 2008. An NPI identifies a provider in billing; it is not a license.
Where is David Miles O'Briant, M.D. located?
The NPPES record lists a practice address at 500 W Broadway St, Missoula, MT, 59802. Phone: (406) 543-7271. Providers update this record themselves, so call before visiting.
How can I verify David Miles O'Briant, M.D.'s license?
NPPES lists Montana license number MED-PHYS-LIC-88249, 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.
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.