IndividualActive
Margaret Witter
NPI 1073044400 · Clinical Social Worker · Napa, CA
Margaret Witter is a Clinical Social Worker provider in Napa, CA (NPI 1073044400).
Provider details
- NPI number
- 1073044400
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- Yes
- License
- 23852 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Established profile(70/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
9 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
1200 Napa Vallejo Highway
Napa, CA 94558-6293
Phone: (707) 253-5955
Approximate (ZIP-level) locationGet directions
Mailing address
1200 Napa-Vallejo Highway
Napa, CA 94558-6293
Registry dates
- Enumerated
- 2017-03-27
- Last updated
- 2017-03-27
Frequently asked questions
- What is Margaret Witter's NPI number?
- Margaret Witter's National Provider Identifier (NPI) is 1073044400, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret Witter's specialty?
- Margaret Witter is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Margaret Witter located?
- Margaret Witter's practice location on file with NPPES is 1200 Napa Vallejo Highway, Napa, CA 94558-6293.
- What is Margaret Witter's phone number?
- The practice phone number listed in the NPPES registry for Margaret Witter is (707) 253-5955.
- Is Margaret Witter's NPI active?
- Yes — Margaret Witter's NPI (1073044400) is active in the NPPES registry as of the last update on 2017-03-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.