Darren Folk, LCSW
NPI 1013241637 · Clinical Social Worker · San Jose, CA
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Darren Folk, LCSW is a Clinical Social Worker provider in San Jose, CA (NPI 1013241637).
Provider details
- NPI number
- 1013241637
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Male
- Sole proprietor
- No
- License
- 24923 (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
- 2009-09-29
- Last updated
- 2021-12-30
Frequently asked questions
- What is Darren Folk's NPI number?
- Darren Folk's National Provider Identifier (NPI) is 1013241637, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Darren Folk's specialty?
- Darren Folk is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Darren Folk located?
- Darren Folk's practice location on file with NPPES is 2625 Zanker Rd Ste 101, San Jose, CA 95134-2130.
- What is Darren Folk's phone number?
- The practice phone number listed in the NPPES registry for Darren Folk is (408) 309-3917.
- Does Darren Folk accept Medicare?
- Darren Folk is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Darren Folk's NPI active?
- Yes — Darren Folk's NPI (1013241637) is active in the NPPES registry as of the last update on 2021-12-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.