Nicholas Siewell, ASW
NPI 1235542861 · Clinical Social Worker · Bakersfield, CA
Nicholas Siewell, ASW is a Clinical Social Worker provider in Bakersfield, CA (NPI 1235542861).
Provider details
- NPI number
- 1235542861
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- ASW
- Sex
- Male
- Sole proprietor
- No
- License
- LCSW76907 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
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
12 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
- 2014-06-11
- Last updated
- 2021-03-16
- Certified
- 2021-03-16
Frequently asked questions
- What is Nicholas Siewell's NPI number?
- Nicholas Siewell's National Provider Identifier (NPI) is 1235542861, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nicholas Siewell's specialty?
- Nicholas Siewell is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Nicholas Siewell located?
- Nicholas Siewell's practice location on file with NPPES is 3628 Stockdale Hwy, Bakersfield, CA 93309-2153.
- What is Nicholas Siewell's phone number?
- The practice phone number listed in the NPPES registry for Nicholas Siewell is (661) 322-1021.
- Is Nicholas Siewell's NPI active?
- Yes — Nicholas Siewell's NPI (1235542861) is active in the NPPES registry as of the last update on 2021-03-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.