Karly Mertz, M.A.
NPI 1366751166 · Marriage & Family Therapist · Eureka, CA
Karly Mertz, M.A. is a Marriage & Family Therapist provider in Eureka, CA (NPI 1366751166).
Provider details
- NPI number
- 1366751166
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Credential
- M.A.
- Sex
- Female
- Sole proprietor
- Yes
Specialties & taxonomies
Behavioral Health & Social Service Providers
- Counselor101Y00000X
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
- 2010-09-28
- Last updated
- 2020-08-11
- Certified
- 2020-08-11
Frequently asked questions
- What is Karly Mertz's NPI number?
- Karly Mertz's National Provider Identifier (NPI) is 1366751166, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karly Mertz's specialty?
- Karly Mertz is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is Karly Mertz located?
- Karly Mertz's practice location on file with NPPES is 2257 Myrtle Ave, Eureka, CA 95501-3486.
- What is Karly Mertz's phone number?
- The practice phone number listed in the NPPES registry for Karly Mertz is (707) 444-8293.
- Is Karly Mertz's NPI active?
- Yes — Karly Mertz's NPI (1366751166) is active in the NPPES registry as of the last update on 2020-08-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.