Karen Hartnett, PA
NPI 1225345895 · Medical Physician Assistant · Westlake Village, CA
Karen Hartnett, PA is a Medical Physician Assistant provider in Westlake Village, CA (NPI 1225345895).
Provider details
- NPI number
- 1225345895
- Entity type
- Individual
- Primary specialty
- Medical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
- Mental Health Counselor101YM0800X
Behavioral Health & Social 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
83% 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
- 2010-09-02
- Last updated
- 2013-08-16
Frequently asked questions
- What is Karen Hartnett's NPI number?
- Karen Hartnett's National Provider Identifier (NPI) is 1225345895, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Hartnett's specialty?
- Karen Hartnett is listed in the NPPES registry with a primary specialty of Medical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Karen Hartnett located?
- Karen Hartnett's practice location on file with NPPES is 2253 Kirsten Lee Dr, Westlake Village, CA 91361-5570.
- What is Karen Hartnett's phone number?
- The practice phone number listed in the NPPES registry for Karen Hartnett is (818) 851-9982.
- Is Karen Hartnett's NPI active?
- Yes — Karen Hartnett's NPI (1225345895) is active in the NPPES registry as of the last update on 2013-08-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.