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

Jonah Patrick Isenstein, LCSW

Individual provider Clinical Social Worker · NPI 1134939515

Jonah Patrick Isenstein, LCSW is a Clinical Social Worker in Berkeley, California. Qualified in 2023, 3 years ago. Accepts Medicare assignment. Licensed in California.

Years since qualifying
3
Licensed in
CA
In the registry since
2025
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

2640 Martin Luther King Jr Way
Berkeley, CA 94704-3238
Phone: (510) 981-5290
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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 138232 (CA)

Record details

NPI number1134939515
Entity typeIndividual (Type 1)
GenderMale
Credentials LCSW
Sole proprietorNo
NPI enumeratedJanuary 8, 2025
Last updated in NPPESMay 4, 2026
Certification dateMay 4, 2026

Medicare enrollment

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

Medicare specialtyCLINICAL SOCIAL WORKER
Medical schoolOTHER
Graduated 2023 (3 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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