Psychologist | Clinical Psychology

Dr. Michael K. Tonjum, PH.D.

1200 College Ave, Santa Rosa, California, 95404-3908

About Dr. Michael K. Tonjum

Dr. Michael K. Tonjum is a psychologist based in Santa Rosa, California who is specialized in Clinical Psychology. Active license number of Dr. Michael K. Tonjum is PSY13055 for Clinical Psychology in California. His current practice location is 1200 College Ave, Santa Rosa. Patients can contact him at 707-568-2300. Dr. Michael K. Tonjum, PH.D., specializes in Clinical Psychology and his NPI number (Unique professional ID assigned by NPPES) is 1104849728.

Dr. Michael K. Tonjum is a mental health professional with highly specialized training in the diagnosis and psychological treatment of mental, behavioral and emotional illnesses, including obsessive-compulsive disorder (OCD). His main focus is on diagnosing and treating mental, emotional, and behavioral disorders. Some of the common disorders that he can treat are learning disabilities, substance abuse, depression, anxiety, and eating disorders.

Practice Information

Dr. Michael K. Tonjum's specialty, credentials, practice address, contact phone number and fax are as below. Patients can call on the below given phone number for appointment.

Provider Name Dr. Michael K. Tonjum
Specialization Clinical Psychology
Credentials PH.D.
Gender Male
Practice Address: 1200 College Ave,
Santa Rosa, CA - 95404-3908

Professional Identification Codes

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

NPI Number1104849728
NPI Enumeration Date: 25 Jul, 2006
NPI Last Update On: 08 Jul, 2007

Medical Licenses:

Healthcare professionals can hold one or more medical licenses for different specialties in the same state or different states. Related medical licenses for Dr. Michael K. Tonjum are as mentioned below.

License NumberSpecializationStateStatus
PSY13055Clinical Psychology CaliforniaPrimary

Mailing Address

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

Dr. Michael K. Tonjum
1200 College Ave,
Santa Rosa, CA - 95404-3908
Phone: 707-568-2300

Book an Appointment with Dr. Michael K. Tonjum

To schedule an appointment, contact Dr. Michael K. Tonjum at 1200 College Ave, Santa Rosa, California or call the phone number listed below.

Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Dr. Michael K. Tonjum:

Dr. Michael K. Tonjum is a psychologist specializing in Clinical Psychology. He is a mental health professional with highly specialized training in the diagnosis and psychological treatment of mental, behavioral and emotional illnesses, including obsessive-compulsive disorder (OCD). His main focus is on diagnosing and treating mental, emotional, and behavioral disorders. Some of the common disorders that he can treat are learning disabilities, substance abuse, depression, anxiety, and eating disorders.

Yes, Dr. Michael K. Tonjum is currently accepting new patients. To schedule an appointment, contact the office directly and schedule an appointment.
*Availability may change. Please contact the office directly to ask about appointments.

Dr. Michael K. Tonjum practices at 1200 College Ave, Santa Rosa, California, 95404-3908.

To schedule an appointment with Dr. Michael K. Tonjum, please contact the office at 707-568-2300.

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