David Christiansen, M.D.
Infectious Disease Physician · Missoula, MT
David Christiansen, M.D. is an infectious disease physician with a practice address in Missoula, Montana, and NPI 1811056336, issued on Dec 8, 2006. Check the license (Montana 11397, as entered in NPPES) on the Montana Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- David Christiansen
- Credential
- M.D.
- Primary taxonomy
- Infectious Disease Physician 207RI0200X
- License numbers
- 11397 MT
5756397-1205 UT
Self-reported in NPPES; status is on the state search - Practice location
- 500 W Broadway St, Missoula, MT 59802
- Phone
- (406) 543-7271
- Enumerated
- Dec 8, 2006
- Entity
- Type 1 · individual
Also registered at 500 W Broadway St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Travis Abicht, MDThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1033239835
- Charles Acher, MDStudent in an Organized Health Care Education/Training Program1033472519
- Ryan Adams, MDInternal Medicine Physician1790952653
- Bodee Alt, APRNFamily Nurse Practitioner1174993703
- Casey Ambrose, MDEmergency Medicine Physician1669892576
- Rebecca Anderson, MDHospitalist Physician1437173440
Verify David Christiansen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMontana Board of Medical Examiners
Search for license 11397Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
39% more Medicare Part D claims than the average infectious disease physician in 2024
1,122 Medicare Part D claims for 304 beneficiaries, against an average of 807 among the 5,613 providers of this specialty who prescribed in Part D. Brand-name drugs were 41% of claims.
Most prescribed
- Doxycycline Hyclate100 claims
- Adacel Tdap88 claims
- Cefuroxime79 claims
- Amoxicillin75 claims
- Typhim Vi70 claims
- Amoxicillin-Clavulanate Potass61 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.
The practice group's Medicare quality score for 2023: 85.4 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
One hospital or facility affiliation
- Providence Health And Services MtMissoula, MT
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Infectious Disease Physician providers in Montana
There are 20 infectious disease physician records in Montana.
Other infectious disease physician records in Montana
- Anne Anglim, M.D.Helena, MT1487680534
- Joshua Christensen, MDMissoula, MT1316093917
- Raymond Geyer, DOGreat Falls, MT1851392732
- David Graham, MDBillings, MT1962425868
- Jessika Hinz, DOBozeman, MT1316171127
- Tsun KuBillings, MT1659584738
- Davis MannBillings, MT1578069498
- Vijay Kumar Mulakalapalli, MDGreat Falls, MT1730924184
- Benedict Painter, MDBozeman, MT1154314839
- Camilla Reese, MDBillings, MT1689616914
Common questions
What is David Christiansen, M.D.'s NPI number?
David Christiansen, M.D.'s National Provider Identifier (NPI) is 1811056336, issued on Dec 8, 2006. An NPI identifies a provider in billing; it is not a license.
Where is David Christiansen, 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 Christiansen, M.D.'s license?
NPPES lists Montana license number 11397, 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 David Christiansen, M.D. prescribe under Medicare Part D?
In 2024, David Christiansen, M.D. had 1,122 Medicare Part D claims for 304 beneficiaries; the average among infectious disease physician prescribers was 807. Part D covers Medicare prescriptions only.
What is David Christiansen, M.D.'s Medicare quality score?
The 2023 MIPS final score is 85.4 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.