IndividualActive
Jonah Isenstein, LCSW
NPI 1134939515 · Clinical Social Worker · Berkeley, CA
Jonah Isenstein, LCSW is a Clinical Social Worker provider in Berkeley, CA (NPI 1134939515).
Provider details
- NPI number
- 1134939515
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Male
- Sole proprietor
- No
- License
- 138232 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Established profile(55/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
1 yr 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
2640 Martin Luther King Jr Way
Berkeley, CA 94704-3238
Phone: (510) 981-5290
Street-level locationGet directions
Mailing address
2640 Martin Luther King Jr Way
Berkeley, CA 94704-3238
Registry dates
- Enumerated
- 2025-01-08
- Last updated
- 2026-05-04
- Certified
- 2026-05-04
Frequently asked questions
- What is Jonah Isenstein's NPI number?
- Jonah Isenstein's National Provider Identifier (NPI) is 1134939515, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jonah Isenstein's specialty?
- Jonah Isenstein is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Jonah Isenstein located?
- Jonah Isenstein's practice location on file with NPPES is 2640 Martin Luther King Jr Way, Berkeley, CA 94704-3238.
- What is Jonah Isenstein's phone number?
- The practice phone number listed in the NPPES registry for Jonah Isenstein is (510) 981-5290.
- Is Jonah Isenstein's NPI active?
- Yes — Jonah Isenstein's NPI (1134939515) is active in the NPPES registry as of the last update on 2026-05-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.