Mental Health Therapist

Mark Sidney Castillo

215 Huerta Ave, Greenfield, California, 93927-5762

About Mark Sidney Castillo

Mark Sidney Castillo is a therapist based in Greenfield, California who is specialized in Mental Health Counselor. His current practice location is 215 Huerta Ave, Greenfield. Patients can reach him at 831-674-2180. Mark Sidney Castillo NPI number (Unique professional ID assigned by NPPES) is 1184845786.

Mark Sidney Castillo is a licensed professional who helps individuals, couples, and families manage and overcome emotional, psychological, and behavioral challenges. He 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

Mark Sidney Castillo 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 Mark Sidney Castillo
Specialization Mental Health Counselor
Gender Male
Practice Address: 215 Huerta Ave,
Greenfield, CA - 93927-5762

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 Number1184845786
NPI Enumeration Date: 01 May, 2007
NPI Last Update On: 21 Jun, 2021

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 Mark Sidney Castillo are as mentioned below.

License NumberSpecializationStateStatus
Counselor Primary
Mental Health Counselor Secondary
Case Manager/Care Coordinator Secondary

Mailing Address

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

Mark Sidney Castillo
18225 Hale Ave,
Morgan Hill, CA - 95037-3547
Phone: 408-465-8280

Book an Appointment with Mark Sidney Castillo

To schedule an appointment, contact Mark Sidney Castillo at 215 Huerta Ave, Greenfield, California or call on below stated phone number.

Call to Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Mark Sidney Castillo:

Mark Sidney Castillo is a therapist specializing in Counselor. He is a trained and licensed mental health professional who helps individuals, couples, or groups manage and overcome emotional, psychological, behavioral, or relationship challenges. He works with people dealing with anxiety, depression, mood disorders, trauma, post-traumatic stress disorder (PTSD), grief and loss etc. He support his clients by understanding their thoughts, emotions, and behaviors.

Yes, Mark Sidney Castillo is currently accepting new patients. To schedule an appointment, contact the office directly and schedule an appointment.

Mark Sidney Castillo practices at 215 Huerta Ave, Greenfield, California, 93927-5762.

To schedule an appointment with Mark Sidney Castillo, please contact the office at 831-674-2180.

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