Addiction Therapist

Diana Guillen

944 Pacific Ave, Long Beach, California, 90813-4228

About Diana Guillen

Diana Guillen is a therapist based in Long Beach, California who is specialized in Addiction (Substance Use Disorder) Counselor. Her current practice location is 944 Pacific Ave, Long Beach. Patients can reach her at 562-436-3533 or can fax her at 562-436-1007. Diana Guillen NPI number (Unique professional ID assigned by NPPES) is 1962737270.

Diana Guillen is a licensed mental health therapist who help individuals struggling with addiction of alcohol, drug, or other substance use disorder. She helps her clients by manage and overcome the psychological, emotional, and behavioral challenges related to substance use. Counselors also work closely with families and support systems to help them better understand their loved one’s illness. SUD counselors help to promote long-term sobriety, emotional stability, and overall mental wellness for both the individual and their family.

Practice Information

Diana Guillen 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 Diana Guillen
Specialization Addiction (Substance Use Disorder) Counselor
Gender Female
Practice Address: 944 Pacific Ave,
Long Beach, CA - 90813-4228
Fax 562-436-1007

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 Number1962737270
NPI Enumeration Date: 05 Oct, 2009
NPI Last Update On: 05 Oct, 2009

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 Diana Guillen are as mentioned below.

License NumberSpecializationStateStatus
Addiction (Substance Use Disorder) Counselor Primary

Other Medical Identifiers

Other legacy medical identifiers associated with Diana Guillen such as Medicaid, Medicare PIN, NSC, UPIN etc. are mentioned as below.
IdentifierTypeStateIssuer
7006MedicaidCalifornia

Mailing Address

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

Diana Guillen
944 Pacific Ave,
Long Beach, CA - 90813-4228
Phone: 562-436-3533
Fax: 562-436-1007

Book an Appointment with Diana Guillen

To schedule an appointment, contact Diana Guillen at 944 Pacific Ave, Long Beach, California or call on below stated phone number.

Call to Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Diana Guillen:

Diana Guillen is a therapist specializing in Addiction (Substance Use Disorder) Counselor. She is a licensed mental health therapist who help individuals struggling with addiction of alcohol, drug, or other substance use disorder. She helps her clients by manage and overcome the psychological, emotional, and behavioral challenges related to substance use. Counselors also work closely with families and support systems to help them better understand their loved one’s illness. SUD counselors help to promote long-term sobriety, emotional stability, and overall mental wellness for both the individual and their family.

Yes, Diana Guillen is currently accepting new patients. To schedule an appointment, contact the office directly and schedule an appointment.

Diana Guillen practices at 944 Pacific Ave, Long Beach, California, 90813-4228.

To schedule an appointment with Diana Guillen, please contact the office at 562-436-3533.

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