Jill Mattern
NPI 1669514253 · Addiction (Substance Use Disorder) Counselor · Ukiah, CA
Jill Mattern is a Addiction (Substance Use Disorder) Counselor provider in Ukiah, CA (NPI 1669514253).
Provider details
- NPI number
- 1669514253
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- Yes
Specialties & taxonomies
Behavioral Health & Social Service Providers
Behavioral Health & Social Service Providers
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
83% 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
- 2007-02-12
- Last updated
- 2023-02-09
- Certified
- 2023-02-09
Frequently asked questions
- What is Jill Mattern's NPI number?
- Jill Mattern's National Provider Identifier (NPI) is 1669514253, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jill Mattern's specialty?
- Jill Mattern is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Jill Mattern located?
- Jill Mattern's practice location on file with NPPES is 201 Brush St, Ukiah, CA 95482-3424.
- What is Jill Mattern's phone number?
- The practice phone number listed in the NPPES registry for Jill Mattern is (707) 462-6290.
- Is Jill Mattern's NPI active?
- Yes — Jill Mattern's NPI (1669514253) is active in the NPPES registry as of the last update on 2023-02-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.