Mental Health Therapist

Sienna Mauve Gregan, AMFT

2501 Harrison St, Oakland, California, 94612-3811

About Sienna Mauve Gregan

Sienna Mauve Gregan is a therapist based in Oakland, California who is specialized in Mental Health Counselor. Active license number of Sienna Mauve Gregan is 103588 for Mental Health Counselor in California. Her current practice location is 2501 Harrison St, Oakland. Patients can reach her at 415-870-6968. Sienna Mauve Gregan is AMFT in Mental Health Counselor and her NPI number (Unique professional ID assigned by NPPES) is 1639648520.

Sienna Mauve Gregan is a licensed professional who helps individuals, couples, and families manage and overcome emotional, psychological, and behavioral challenges. She assess clients’ mental health conditions and develop personalized treatment plans to provide therapy for a range of mental health issues, including anxiety, depression, trauma, relationship issues, stress, grief, and life transitions.

Practice Information

Sienna Mauve Gregan speciality, credentials, practice address, contact phone number and fax are as below. Patients can call on the below given phone number for appointment.

Provider Name Sienna Mauve Gregan
Specialization Mental Health Counselor
Credentials AMFT
Gender Female
Practice Address: 2501 Harrison St,
Oakland, CA - 94612-3811

Professional Identification Codes

NPI number stands for National Provider Identifier which is a unique 10-digit identification number issued to health care providers in the United States by the Centers for Medicare and Medicaid Services (CMS). NPI details are as mentioned below.

NPI Number1639648520
NPI Enumeration Date: 20 Nov, 2018
NPI Last Update On: 20 Nov, 2018

Medical Licenses:

Healthcare professionals can hold one or more medical licenses for different specialities in the same state or different states. Related medical licenses for Sienna Mauve Gregan are as mentioned below.

License NumberSpecializationStateStatus
103588Mental Health Counselor CaliforniaPrimary

Mailing Address

Business mailing address can be used for mailing purpose only, for visiting purpose patients need to refer above mentioned Practice address.

Sienna Mauve Gregan
2501 Harrison St,
Oakland, CA - 94612-3811
Phone: 415-870-6968

Book an Appointment with Sienna Mauve Gregan

To schedule an appointment, contact Sienna Mauve Gregan at 2501 Harrison St, Oakland, California or call on below stated phone number.

Call to Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Sienna Mauve Gregan:

Sienna Mauve Gregan is a therapist specializing in Mental Health Counselor. She is a licensed professional who helps individuals, couples, and families manage and overcome emotional, psychological, and behavioral challenges. She assess clients’ mental health conditions and develop personalized treatment plans to provide therapy for a range of mental health issues, including anxiety, depression, trauma, relationship issues, stress, grief, and life transitions.

Yes, Sienna Mauve Gregan is currently accepting new patients. To schedule an appointment, contact the office directly and schedule an appointment.

Sienna Mauve Gregan practices at 2501 Harrison St, Oakland, California, 94612-3811.

To schedule an appointment with Sienna Mauve Gregan, please contact the office at 415-870-6968.

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**Data of this site is collected from Medicare & Medicaid Services (CMS) and NPPES. Last updated on 14 September, 2026.