Psychologist | Clinical Psychology | 41+ years experience

Mark H Johnson, PHD

400 15th Ave S Ste 205, Great Falls, Montana, 59405-4375

About Mark H Johnson

Mark H Johnson is a psychologist based in Great Falls, Montana with 41 years of experience in Clinical Psychology. He completed his graduation from Ohio State University College Of Medicine in 1985. He is also affiliated with hospitals like He accepts the Medicare-approved amount. Patients will not be billed for any more than the Medicare deductible and coinsurance. Active license number of Mark H Johnson is 198 for Psychology in Montana. His current practice location is 400 15th Ave S Ste 205, Great Falls. Patients can contact him at 406-731-8888 or can fax him at 406-731-8876. Mark H Johnson, PHD, specializes in Clinical Psychology and his NPI number (Unique professional ID assigned by NPPES) is 1932100518.

Mark H Johnson 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

Mark H Johnson'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 Mark H Johnson
Specialization Clinical Psychology
Credentials PHD
Accepts Medicare Assignment Yes
Experience 41+ years
Medical School Attended Ohio State University College Of Medicine
Graduation Year 1985
Gender Male
Practice Address: 400 15th Ave S Ste 205,
Great Falls, MT - 59405-4375
Fax 406-731-8876

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.

PAC ID 0941340558
Enrollment ID I20091211000586
NPI Number1932100518
NPI Enumeration Date: 09 Aug, 2005
NPI Last Update On: 08 Apr, 2024

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 Mark H Johnson are as mentioned below.

License NumberSpecializationStateStatus
198Psychology MontanaPrimary
198Clinical Psychology MontanaSecondary

Hospital Affiliation

Doctors are affiliated to many hospitals whom they worked with in the past or are presently working with. One doctor can be affiliated to four to five hospitals at a time.
Hospital Name (CCN) StateHospital Type
(270012)Great falls, MTAcute Care Hospital

Group Practice

Group practices are practice of medicine by a group of healthcare professionals who share their premises and other resources. Following list states all the group name with which Mark H Johnson is associated with along with the number of members in that group.
Organization Name (Group PAC ID) Members
Benefis Hospitals Inc (1153235296)306

Mailing Address

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

Mark H Johnson
400 15th Ave S Ste 205,
Great Falls, MT - 59405-4375
Phone: 406-731-8888
Fax: 406-731-8876

Book an Appointment with Mark H Johnson

To schedule an appointment, contact Mark H Johnson at 400 15th Ave S Ste 205, Great Falls, Montana or call the phone number listed below.

Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Mark H Johnson:

Mark H Johnson is a psychologist specializing in Psychology. He is specialized in psychological testing and evaluating or assessing patient's personal characteristics, such as intelligence, personality, abilities, interests, aptitudes, and neuropsychological functioning. Accordingly, he performs counseling, psychoanalysis, psychotherapy, hypnosis, biofeedback, and behavior analysis and therapy. He can diagnose and treat mental and emotional disorder or disability, alcoholism and substance abuse, disorders of habit or conduct, as well as of the psychological aspects of physical illness, accident, injury, or disability by psycheducational evaluation, therapy, remediation, and consultation.

Mark H Johnson completed his education (PHD) from Ohio State University College Of Medicine in 1985.

Mark H Johnson has approximately 41 years of experience in Psychology.

Yes, Mark H Johnson accepts Medicare assignment, meaning the provider participates in Medicare and accepts Medicare-approved amounts for eligible services.

Yes, Mark H Johnson 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.

Mark H Johnson practices at 400 15th Ave S Ste 205, Great Falls, Montana, 59405-4375.

To schedule an appointment with Mark H Johnson, please contact the office at 406-731-8888.

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