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Stephen Base, MD
NPI 1225050453 · Internal Medicine Physician · Miles City, MT
Stephen Base, MD is a Internal Medicine Physician provider in Miles City, MT (NPI 1225050453).
Provider details
- NPI number
- 1225050453
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 9791 (MT)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(91/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
620 S Haynes Ave
Miles City, MT 59301-4769
Phone: (406) 233-7000
Street-level locationGet directions
Mailing address
Po Box 35100
Billings, MT 59107-5100
Registry dates
- Enumerated
- 2006-07-24
- Last updated
- 2008-02-27
Frequently asked questions
- What is Stephen Base's NPI number?
- Stephen Base's National Provider Identifier (NPI) is 1225050453, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephen Base's specialty?
- Stephen Base is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Stephen Base located?
- Stephen Base's practice location on file with NPPES is 620 S Haynes Ave, Miles City, MT 59301-4769.
- What is Stephen Base's phone number?
- The practice phone number listed in the NPPES registry for Stephen Base is (406) 233-7000.
- Is Stephen Base's NPI active?
- Yes — Stephen Base's NPI (1225050453) is active in the NPPES registry as of the last update on 2008-02-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.