NPI Portal NPI Lookup & Verification

Ms. Mary Ann Estabrook

Ms. Mary Ann Estabrook is a Counselor provider (Counselor) practicing in Oakland, CA, registered in the NPPES registry with NPI 1861696429 since 2007.

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NPI 1861696429
Entity type Individual (Type 1)
Name Ms. Mary Ann Estabrook
Sex Female
Practice address 333 HEGENBERGER RD STE 600, Oakland, CA, 94621
Phone 5103831623
Enumeration date 2007-06-14
Last updated in NPPES 2007-07-08

Taxonomy & licenses

Taxonomy code Specialty Primary License State
101Y00000X Counselor Primary
Copy-ready billing details
Provider: Mary Estabrook
NPI: 1861696429
Taxonomy: 101Y00000X (Counselor)
Address: 333 HEGENBERGER RD STE 600, Oakland, CA, 94621

Other providers at this practice address

NPI Name Type Specialty Location
1942127295 Alan Askew Individual Marriage & Family Therapist Oakland, CA
1508998204 County of Alameda Organization Community/Behavioral Health Agency Oakland, CA
1881881613 Verna Chapman Individual Mental Health Counselor Oakland, CA
1326366253 Angela Nagrampa Individual Professional Counselor Oakland, CA
1306146709 Joyce Redd Individual Counselor Oakland, CA
1144595604 Wendy Burton Individual Community Health Worker Oakland, CA
1114360781 Richard Degette Individual Marriage & Family Therapist Oakland, CA
1245820455 Alessandra Butler Individual Student in an Organized Health Care Education/Training Program Oakland, CA

Verify this record

Cross-check NPI 1861696429 against the authoritative CMS record: view Ms. Mary Ann Estabrook on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

Where does Mary Estabrook practice?
The practice location on file with NPPES is in Oakland, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Mary Estabrook?
The National Provider Identifier (NPI) for Mary Estabrook is 1861696429, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2007-07-08.