Jillian Hynynen, Licensed Clinical Social Worker, Inc.
NPI 1538999297 · Clinical Social Worker · Tustin, CA
Jillian Hynynen, Licensed Clinical Social Worker, Inc. is a Clinical Social Worker organization in Tustin, CA (NPI 1538999297).
Provider details
- NPI number
- 1538999297
- Entity type
- Organization
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Organization subpart
- No
- Authorized official
- Jillian Hynynen, President(703) 598-8036
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
1 yr in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- 26431 Crown Valley Pkwy Ste 260Mission Viejo, CA 92691-7201Phone: (949) 237-2925
Registry dates
- Enumerated
- 2024-08-06
- Last updated
- 2025-06-19
- Certified
- 2025-06-19
Frequently asked questions
- What is Jillian Hynynen, Licensed Clinical Social Worker, Inc.'s NPI number?
- Jillian Hynynen, Licensed Clinical Social Worker, Inc.'s National Provider Identifier (NPI) is 1538999297, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Jillian Hynynen, Licensed Clinical Social Worker, Inc.?
- Jillian Hynynen, Licensed Clinical Social Worker, Inc. is classified in the NPPES registry as Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Jillian Hynynen, Licensed Clinical Social Worker, Inc. located?
- Jillian Hynynen, Licensed Clinical Social Worker, Inc.'s practice location on file with NPPES is 17541 Irvine Blvd Ste E, Tustin, CA 92780-3158.
- What is Jillian Hynynen, Licensed Clinical Social Worker, Inc.'s phone number?
- The practice phone number listed in the NPPES registry for Jillian Hynynen, Licensed Clinical Social Worker, Inc. is (949) 237-2925.
- Who is the authorized official for Jillian Hynynen, Licensed Clinical Social Worker, Inc.?
- The authorized official listed on Jillian Hynynen, Licensed Clinical Social Worker, Inc.'s NPPES record is Jillian Hynynen, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Jillian Hynynen, Licensed Clinical Social Worker, Inc.'s NPI active?
- Yes — Jillian Hynynen, Licensed Clinical Social Worker, Inc.'s NPI (1538999297) is active in the NPPES registry as of the last update on 2025-06-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.