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Jillian Hynynen, LCSW
NPI 1558196428 · Clinical Social Worker · Tustin, CA
Jillian Hynynen, LCSW is a Clinical Social Worker provider in Tustin, CA (NPI 1558196428).
Provider details
- NPI number
- 1558196428
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Female
- Sole proprietor
- Yes
- License
- 117609 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Established profile(56/100 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
17541 Irvine Blvd Ste E
Tustin, CA 92780-3158
Phone: (949) 237-2925
Street-level locationGet directions
Mailing address
25 Tiara
Irvine, CA 92614-5383
Registry dates
- Enumerated
- 2024-09-03
- Last updated
- 2025-06-19
- Certified
- 2025-06-19
Frequently asked questions
- What is Jillian Hynynen's NPI number?
- Jillian Hynynen's National Provider Identifier (NPI) is 1558196428, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jillian Hynynen's specialty?
- Jillian Hynynen is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Jillian Hynynen located?
- Jillian Hynynen's practice location on file with NPPES is 17541 Irvine Blvd Ste E, Tustin, CA 92780-3158.
- What is Jillian Hynynen's phone number?
- The practice phone number listed in the NPPES registry for Jillian Hynynen is (949) 237-2925.
- Is Jillian Hynynen's NPI active?
- Yes — Jillian Hynynen's NPI (1558196428) 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.