Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Allison Eileen Cleary Dutton Stills

Marriage & Family Therapist in San Leandro, CA · enumerated 2012.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1902167273

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Allison Eileen Cleary Dutton Stills

Sex Female

Practice address 2275 Arlington Dr, San Leandro, CA, 94578

Phone (510) 317-1444

Enumeration date Jun 4, 2012

Last updated in NPPES Sep 2, 2022

Taxonomy & licenses

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers · License IMF93972 (CA) Secondary

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care · License IMF93972 (CA) Secondary

106H00000X Marriage & Family Therapist Behavioral Health & Social Service Providers · License 113629 (CA) Primary

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Allison Dutton Stills practice?

The practice location on file with NPPES is in San Leandro, CA. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Allison Dutton Stills?

The National Provider Identifier (NPI) for Allison Dutton Stills is 1902167273, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-09-02.