Mark Guynn, M.F.T.
NPI 1003142266 · Marriage & Family Therapist · La Mesa, CA
Mark Guynn, M.F.T. is a Marriage & Family Therapist provider in La Mesa, CA (NPI 1003142266).
Provider details
- NPI number
- 1003142266
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Credential
- M.F.T.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 45713 (CA)
Specialties & taxonomies
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
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
- 2009-10-22
- Last updated
- 2009-10-22
Frequently asked questions
- What is Mark Guynn's NPI number?
- Mark Guynn's National Provider Identifier (NPI) is 1003142266, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Guynn's specialty?
- Mark Guynn is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is Mark Guynn located?
- Mark Guynn's practice location on file with NPPES is 8058 La Mesa Blvd, La Mesa, CA 91942-0335.
- What is Mark Guynn's phone number?
- The practice phone number listed in the NPPES registry for Mark Guynn is (619) 463-9742.
- Is Mark Guynn's NPI active?
- Yes — Mark Guynn's NPI (1003142266) is active in the NPPES registry as of the last update on 2009-10-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.