Sierra Alexander
NPI 1487431110 · Addiction (Substance Use Disorder) Counselor · Upper Lake, CA
Sierra Alexander is a Addiction (Substance Use Disorder) Counselor provider in Upper Lake, CA (NPI 1487431110).
Provider details
- NPI number
- 1487431110
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- No
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
2 yrs in NPPES registry
- Profile completeness38% of score
83% 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
- 2023-09-14
- Last updated
- 2024-10-09
- Certified
- 2024-10-09
Frequently asked questions
- What is Sierra Alexander's NPI number?
- Sierra Alexander's National Provider Identifier (NPI) is 1487431110, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sierra Alexander's specialty?
- Sierra Alexander is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Sierra Alexander located?
- Sierra Alexander's practice location on file with NPPES is 675 1st St, Upper Lake, CA 95485-9586.
- What is Sierra Alexander's phone number?
- The practice phone number listed in the NPPES registry for Sierra Alexander is (707) 467-2010.
- Is Sierra Alexander's NPI active?
- Yes — Sierra Alexander's NPI (1487431110) is active in the NPPES registry as of the last update on 2024-10-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.