IndividualActive
Rian Mack
NPI 1215126420 · Marriage & Family Therapist · Hayward, CA
Rian Mack is a Marriage & Family Therapist provider in Hayward, CA (NPI 1215126420).
Provider details
- NPI number
- 1215126420
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 134134 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(88/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 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
409 Jackson St
Hayward, CA 94544-1530
Phone: (510) 891-5600
Street-level locationGet directions
Mailing address
1285 107th Ave
Oakland, CA 94603-3821
Registry dates
- Enumerated
- 2007-10-24
- Last updated
- 2025-10-03
- Certified
- 2025-10-03
Frequently asked questions
- What is Rian Mack's NPI number?
- Rian Mack's National Provider Identifier (NPI) is 1215126420, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Rian Mack's specialty?
- Rian Mack is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is Rian Mack located?
- Rian Mack's practice location on file with NPPES is 409 Jackson St, Hayward, CA 94544-1530.
- What is Rian Mack's phone number?
- The practice phone number listed in the NPPES registry for Rian Mack is (510) 891-5600.
- Is Rian Mack's NPI active?
- Yes — Rian Mack's NPI (1215126420) is active in the NPPES registry as of the last update on 2025-10-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.