IndividualActive
Katherine Mefferd
NPI 1699642207 · Physician Assistant · Vallejo, CA
Katherine Mefferd is a Physician Assistant provider in Vallejo, CA (NPI 1699642207).
Provider details
- NPI number
- 1699642207
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
Basic profile(47/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
Under 1 yr in 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
1310 Club Dr
Vallejo, CA 94592-1187
Phone: (707) 638-5809
Approximate (ZIP-level) locationGet directions
Mailing address
1310 Club Dr
Vallejo, CA 94592-1187
Registry dates
- Enumerated
- 2025-10-20
- Last updated
- 2025-10-20
- Certified
- 2025-10-20
Frequently asked questions
- What is Katherine Mefferd's NPI number?
- Katherine Mefferd's National Provider Identifier (NPI) is 1699642207, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine Mefferd's specialty?
- Katherine Mefferd is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Katherine Mefferd located?
- Katherine Mefferd's practice location on file with NPPES is 1310 Club Dr, Vallejo, CA 94592-1187.
- What is Katherine Mefferd's phone number?
- The practice phone number listed in the NPPES registry for Katherine Mefferd is (707) 638-5809.
- Is Katherine Mefferd's NPI active?
- Yes — Katherine Mefferd's NPI (1699642207) is active in the NPPES registry as of the last update on 2025-10-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.