IndividualActive
William Woolston, PHD
NPI 1487726733 · Clinical Psychologist · Billings, MT
William Woolston, PHD is a Clinical Psychologist provider in Billings, MT (NPI 1487726733).
Provider details
- NPI number
- 1487726733
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PHD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 81 (MT)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(90/100 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
1211 Grand Ave
Suite 5
Billings, MT 59102-4213
Phone: (406) 655-4904
Fax: (406) 655-2386
Street-level locationGet directions
Mailing address
1211 Grand Ave
Billings, MT 59102-4213
Registry dates
- Enumerated
- 2006-11-14
- Last updated
- 2007-07-08
Frequently asked questions
- What is William Woolston's NPI number?
- William Woolston's National Provider Identifier (NPI) is 1487726733, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Woolston's specialty?
- William Woolston is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is William Woolston located?
- William Woolston's practice location on file with NPPES is 1211 Grand Ave, Billings, MT 59102-4213.
- What is William Woolston's phone number?
- The practice phone number listed in the NPPES registry for William Woolston is (406) 655-4904.
- Is William Woolston's NPI active?
- Yes — William Woolston's NPI (1487726733) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.