Karen Callahan, F.N.P.
NPI 1932124443 · Nurse Practitioner · Yuba City, CA
Karen Callahan, F.N.P. is a Nurse Practitioner provider in Yuba City, CA (NPI 1932124443).
Provider details
- NPI number
- 1932124443
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- F.N.P.
- Sex
- Female
- Sole proprietor
- No
- License
- NPF5796 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing 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
- 2006-07-13
- Last updated
- 2021-03-29
- Certified
- 2021-03-29
Frequently asked questions
- What is Karen Callahan's NPI number?
- Karen Callahan's National Provider Identifier (NPI) is 1932124443, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Callahan's specialty?
- Karen Callahan is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Karen Callahan located?
- Karen Callahan's practice location on file with NPPES is 969 Plumas St, Yuba City, CA 95991-4011.
- What is Karen Callahan's phone number?
- The practice phone number listed in the NPPES registry for Karen Callahan is (530) 749-3585.
- Is Karen Callahan's NPI active?
- Yes — Karen Callahan's NPI (1932124443) is active in the NPPES registry as of the last update on 2021-03-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.