Stephen Base, MD
Internal Medicine Physician · Miles City, MT
Stephen Base, MD is an internal medicine physician with a practice address in Miles City, Montana, and NPI 1225050453, issued on Jul 24, 2006. Check the license (Montana 9791, as entered in NPPES) on the Montana Board of Medical Examiners; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Stephen Base
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 9791 MT
Self-reported in NPPES; status is on the state search - Practice location
- 620 S Haynes Ave, Miles City, MT 59301
- Phone
- (406) 233-7000
- Enumerated
- Jul 24, 2006
- Entity
- Type 1 · individual
Also registered at 620 S Haynes Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Marjorie AlbersStudent in an Organized Health Care Education/Training Program1174029086
- Amber Arthur, MPTPhysical Therapist1720238397
- Tara Ash, PTAPhysical Therapy Assistant1578716320
- Angela Bundy-Kelm, PACPhysician Assistant1548297625
- Peter D'Ascoli, M.D.Obstetrics & Gynecology Physician1245200807
- Krysta Devries, PAPhysician Assistant1881097665
Verify Stephen Base in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMontana Board of Medical Examiners
Search for license 9791Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
3 internal medicine physician records list a Miles City practice address
They are 3 of the 240 NPPES records with a Miles City practice address, and 394 internal medicine physician records in Montana. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 3 in Miles City → All 394 in Montana → Every provider in Miles City →
Other internal medicine physician records in Montana
- Farnaz Abbasimoradi, MDBillings, MT1104434562
- Ryan Adams, MDMissoula, MT1790952653
- Timothy Adams, MDBozeman, MT1891706537
- Thomas Addison, MDGreat Falls, MT1871594754
- Yee Chuan Ang, M.D.Billings, MT1104138668
- Faranak Argani, MDBillings, MT1558475954
- Janet Armstrong, M.D.Glasgow, MT1215949557
- Susan Askin, MDFort Harrison, MT1588771604
- James Attarian, MDBozeman, MT1144209198
- Elias Baied, DOGreat Falls, MT1023497708
Common questions
What is Stephen Base, MD's NPI number?
Stephen Base, MD's National Provider Identifier (NPI) is 1225050453, issued on Jul 24, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Stephen Base, MD located?
The NPPES record lists a practice address at 620 S Haynes Ave, Miles City, MT, 59301. Phone: (406) 233-7000. Providers update this record themselves, so call before visiting.
How can I verify Stephen Base, MD's license?
NPPES lists Montana license number 9791, 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), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.