Mary Humphreys, RN, BSN, PHN
NPI 1558656215 · Case Management Registered Nurse · Marysville, CA
Mary Humphreys, RN, BSN, PHN is a Case Management Registered Nurse provider in Marysville, CA (NPI 1558656215).
Provider details
- NPI number
- 1558656215
- Entity type
- Individual
- Primary specialty
- Case Management Registered NurseNursing Service Providers
- Credential
- RN, BSN, PHN
- Sex
- Female
- Sole proprietor
- Yes
- License
- 791218 (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
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
- 2011-06-10
- Last updated
- 2011-06-10
Frequently asked questions
- What is Mary Humphreys's NPI number?
- Mary Humphreys's National Provider Identifier (NPI) is 1558656215, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Humphreys's specialty?
- Mary Humphreys is listed in the NPPES registry with a primary specialty of Case Management Registered Nurse (Nursing Service Providers).
- Where is Mary Humphreys located?
- Mary Humphreys's practice location on file with NPPES is 5730 Packard Ave, Marysville, CA 95901-7118.
- What is Mary Humphreys's phone number?
- The practice phone number listed in the NPPES registry for Mary Humphreys is (530) 749-6492.
- Is Mary Humphreys's NPI active?
- Yes — Mary Humphreys's NPI (1558656215) is active in the NPPES registry as of the last update on 2011-06-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.