Steven Williamson, MD
NPI 1689695967 · Family Medicine Physician · Billings, MT
Enrolled with Medicare as Practitioner - General Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Steven Williamson, MD is a Family Medicine Physician provider in Billings, MT (NPI 1689695967).
Provider details
- NPI number
- 1689695967
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 10604 (MT)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
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
Mailing address
Registry dates
- Enumerated
- 2006-07-21
- Last updated
- 2022-02-24
- Certified
- 2022-02-24
Frequently asked questions
- What is Steven Williamson's NPI number?
- Steven Williamson's National Provider Identifier (NPI) is 1689695967, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Steven Williamson's specialty?
- Steven Williamson is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Steven Williamson located?
- Steven Williamson's practice location on file with NPPES is 801 N 29th St, Billings, MT 59101-0905.
- What is Steven Williamson's phone number?
- The practice phone number listed in the NPPES registry for Steven Williamson is (406) 238-2500.
- Does Steven Williamson accept Medicare?
- Steven Williamson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Steven Williamson's NPI active?
- Yes — Steven Williamson's NPI (1689695967) is active in the NPPES registry as of the last update on 2022-02-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.