Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Stephanie Mattern, LCSW

Individual provider Clinical Social Worker · NPI 1598492613

Stephanie Mattern, LCSW is a Clinical Social Worker in El Cajon, California. Qualified in 2021, 5 years ago. Practices with Sokyahealth Medical Group PC, a 178-clinician group, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
5
Licensed in
CA
In the registry since
2022
What do these letters mean?
LCSW — Licensed Clinical Social Worker
A social worker licensed to diagnose and treat mental health conditions independently.

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Practice location Address checks out

1870 Cordell Ct Ste 101
El Cajon, CA 92020-0915
Phone: (619) 755-9961
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence 123940 (CA)

Record details

NPI number1598492613
Entity typeIndividual (Type 1)
GenderFemale
Credentials LCSW
Sole proprietorYes
NPI enumeratedAugust 8, 2022
Last updated in NPPESMarch 14, 2025
Certification dateMarch 14, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCLINICAL SOCIAL WORKER
Medical schoolOTHER
Graduated 2021 (5 years in practice)
Group practice Sokyahealth Medical Group Pc — 178 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Other providers in El Cajon