John Hammer, RN
NPI 1346579406 · Adult Psychiatric/Mental Health Registered Nurse · Redding, CA
John Hammer, RN is a Adult Psychiatric/Mental Health Registered Nurse provider in Redding, CA (NPI 1346579406).
Provider details
- NPI number
- 1346579406
- Entity type
- Individual
- Primary specialty
- Adult Psychiatric/Mental Health Registered NurseNursing Service Providers
- Credential
- RN
- Sex
- Male
- Sole proprietor
- No
- License
- 700465 (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
16 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
- 2009-12-18
- Last updated
- 2009-12-18
Frequently asked questions
- What is John Hammer's NPI number?
- John Hammer's National Provider Identifier (NPI) is 1346579406, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Hammer's specialty?
- John Hammer is listed in the NPPES registry with a primary specialty of Adult Psychiatric/Mental Health Registered Nurse (Nursing Service Providers).
- Where is John Hammer located?
- John Hammer's practice location on file with NPPES is 1716 Court St Suite B, Redding, CA 96001.
- What is John Hammer's phone number?
- The practice phone number listed in the NPPES registry for John Hammer is (530) 223-2332.
- Is John Hammer's NPI active?
- Yes — John Hammer's NPI (1346579406) is active in the NPPES registry as of the last update on 2009-12-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.