Nancy Davidson, R.N., P.H.N.
NPI 1346450681 · Case Management Registered Nurse · Vallejo, CA
Nancy Davidson, R.N., P.H.N. is a Case Management Registered Nurse provider in Vallejo, CA (NPI 1346450681).
Provider details
- NPI number
- 1346450681
- Entity type
- Individual
- Primary specialty
- Case Management Registered NurseNursing Service Providers
- Credential
- R.N., P.H.N.
- Sex
- Female
- Sole proprietor
- No
- License
- 227219 (CA)
Specialties & taxonomies
Nursing Service Providers
Profile Score
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
Mailing address
Registry dates
- Enumerated
- 2007-05-23
- Last updated
- 2007-07-08
Frequently asked questions
- What is Nancy Davidson's NPI number?
- Nancy Davidson's National Provider Identifier (NPI) is 1346450681, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nancy Davidson's specialty?
- Nancy Davidson is listed in the NPPES registry with a primary specialty of Case Management Registered Nurse (Nursing Service Providers).
- Where is Nancy Davidson located?
- Nancy Davidson's practice location on file with NPPES is 355 Tuolumne St, Vallejo, CA 94590-5700.
- What is Nancy Davidson's phone number?
- The practice phone number listed in the NPPES registry for Nancy Davidson is (707) 553-5402.
- Is Nancy Davidson's NPI active?
- Yes — Nancy Davidson's NPI (1346450681) 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.