As of 3.1.2022 we are increasing fees to the following:

15 Mins. $130
20 Mins. $200
3 Months $200
30 Mins. $250
45 Mins. $350

New Patient fees stay the same.

The A.D.D. Clinic, Inc. is an outpatient Clinic specializing in diagnosis and treatment of:


ADHD (Attention Deficit/Hyperactivity Disorder)
ADD (Attention Deficit Disorder)
OCD (Obsessive Compulsive Disorder)
Tourette's Syndrome
Depression (All types)
BiPolar Disorders (formerly known as Manic-Depressive Disorder)
Asperger's Disorder
Autism Spectrum Disorders
Anxiety Disorders
Impulse Control Disorders
Complex conditions which may involve combinations of these and other neurobiological problems as well as medical problems

Our services include:
  • Comprehensive individual and family diagnostic evaluation.
  • Expert medication evaluation and prescribing as indicated.
  • Referrals to Internists, Pediatricians, Family Physicians, and Medical Specialists when indicated.
  • Lab testing forms when specific lab tests are advisable.
  • Referrals to outside counselors and therapists whom we know have expertise in providing CBT and other forms of psychotherapy.

If you are interested in becoming a client please go to the new patients section before calling for appointment.

Tuesday, Wednesday, and Friday: 10 AM - 5 PM
Saturday: 10 AM - 3 PM 

Services are provided by:

Corydon G. Clark, M.D.
Board Certified in Child, Adolescent and General Psychiatry

Dr. Clark received his M.D. degree from University of Rochester Medical School, Rochester, NY, in 1966, and completed training in General Psychiatry at the University of Colorado Medical Center, Denver, CO, in 1970.  He completed Fellowship training in Child/Adolescent Psychiatry at University California at Davis, Davis, CA medical Center in 1973.  He served two years as a staff psychiatrist as a Lt. Commander in the US Navy Medical Corps (1970-1972)  at the Camp Pendleton, CA, Naval Hospital.  Dr. Clark has been in private practice since 1972.