Colleen Buchanan, RASI
NPI 1851605257 · Addiction (Substance Use Disorder) Counselor · Santa Rosa, CA
Colleen Buchanan, RASI is a Addiction (Substance Use Disorder) Counselor provider in Santa Rosa, CA (NPI 1851605257).
Provider details
- NPI number
- 1851605257
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Credential
- RASI
- Sex
- Female
- Sole proprietor
- No
- License
- RI-B1007271714 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
15 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
- 2010-07-28
- Last updated
- 2010-07-28
Frequently asked questions
- What is Colleen Buchanan's NPI number?
- Colleen Buchanan's National Provider Identifier (NPI) is 1851605257, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Colleen Buchanan's specialty?
- Colleen Buchanan is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Colleen Buchanan located?
- Colleen Buchanan's practice location on file with NPPES is 429 Speers Rd, Santa Rosa, CA 95409-3123.
- What is Colleen Buchanan's phone number?
- The practice phone number listed in the NPPES registry for Colleen Buchanan is (707) 571-2215.
- Is Colleen Buchanan's NPI active?
- Yes — Colleen Buchanan's NPI (1851605257) is active in the NPPES registry as of the last update on 2010-07-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.