Psychiatrist | 54+ years experience

Dr. James Mikolajczak, M.D.

141 N Meramec Ave, Clayton, Missouri, 63105-3750

About Dr. James Mikolajczak

Dr. James Mikolajczak is a psychiatrist based in Clayton, Missouri with 54 years of experience in Psychiatry. He completed his graduation from Saint Louis University School Of Medicine in 1972. He may accept the Medicare-approved amount. Patients may be billed for more than the Medicare deductible and coinsurance. Active license number of Dr. James Mikolajczak is 34665 for Child & Adolescent Psychiatry in Missouri. His current practice location is 141 N Meramec Ave, Clayton. Patients can contact him at 314-726-1666. Dr. James Mikolajczak, M.D., specializes in Psychiatry and his NPI number (Unique professional ID assigned by NPPES) is 1760502207.

Dr. James Mikolajczak specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.

Practice Information

Dr. James Mikolajczak'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. James Mikolajczak
Specialization Psychiatry
Credentials M.D.
Accepts Medicare Assignment May Accept
Gender Male
Practice Address: 141 N Meramec Ave,
Clayton, MO - 63105-3750

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 8224120266
Enrollment ID I20070822001340
NPI Number1760502207
NPI Enumeration Date: 29 Mar, 2007
NPI Last Update On: 11 Sep, 2025

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. James Mikolajczak are as mentioned below.

License NumberSpecializationStateStatus
34665Child & Adolescent Psychiatry MissouriPrimary
34665Psychiatry MissouriSecondary
34665Geriatric Psychiatry MissouriSecondary

Mailing Address

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

Dr. James Mikolajczak
141 N Meramec Ave,
Clayton, MO - 63105-3750

Book an Appointment with Dr. James Mikolajczak

To schedule an appointment, contact Dr. James Mikolajczak at 141 N Meramec Ave, Clayton, Missouri or call the phone number listed below.

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Frequently Asked Questions

Below are some commonly asked questions about Dr. James Mikolajczak:

Dr. James Mikolajczak is a psychiatrist specializing in Child & Adolescent Psychiatry. He has done additional skills and training in the diagnosis and treatment of developmental, behavioral, emotional, and mental disorders of childhood and adolescence.

Dr. James Mikolajczak completed his education (M.D.) from Saint Louis University School Of Medicine in 1972.

Dr. James Mikolajczak has approximately 54 years of experience in Child & Adolescent Psychiatry.

Dr. James Mikolajczak may accept Medicare assignment. Please contact the provider's office directly to verify Medicare participation and coverage details.

Yes, Dr. James Mikolajczak 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. James Mikolajczak practices at 141 N Meramec Ave, Clayton, Missouri, 63105-3750.

To schedule an appointment with Dr. James Mikolajczak, please contact the office at 314-726-1666.

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