Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. James Mikolajczak, MD

Individual provider Psychiatry Physician · NPI 1760502207

Dr. James Mikolajczak, MD is a Psychiatry in Clayton, Missouri. Graduated from Saint Louis University School of Medicine in 1972, 54 years ago. Practices as a sole proprietor. Licensed in Missouri.

Years since qualifying
54
Trained at
Saint Louis University School of Medicine
Licensed in
MO
In the registry since
2007
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

141 N Meramec Ave
Clayton, MO 63105-3750
Phone: (314) 726-1666
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Child & Adolescent Psychiatry Physician (primary) Taxonomy 2084P0804X · Licence 34665 (MO)
Psychiatry Physician Taxonomy 2084P0800X · Licence 34665 (MO)
Geriatric Psychiatry Physician Taxonomy 2084P0805X · Licence 34665 (MO)

Record details

NPI number1760502207
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedMarch 29, 2007
Last updated in NPPESSeptember 11, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPSYCHIATRY
Medical schoolSAINT LOUIS UNIVERSITY SCHOOL OF MEDICINE
Graduated 1972 (54 years in practice)
Accepts Medicare assignment Not indicated

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