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DR. JAMES MIKOLAJCZAK M.D.
NPI 1760502207
Psychiatry & Neurology - Child & Adolescent Psychiatry in Clayton, MO

Active since March 29, 2007PECOS Enrolled
141 N MERAMEC AVE, CLAYTON, MO 63105(314) 726-1666 Get Directions Write a Review

NPPES record last updated: September 11, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Dr. James Mikolajczak M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. JAMES MIKOLAJCZAK M.D. (NPI 1760502207) is an individual child & adolescent psychiatry provider in Clayton, Missouri, licensed in Missouri (34665) and active in the NPI registry since March 2007. He is enrolled in Medicare PECOS and is a graduate of Saint Louis University School Of Medicine (1972).

NPPES Registry Identity

NPI1760502207
Entity TypeIndividualMale
Primary Taxonomy2084P0804X
Provider Legal NameDR. JAMES MIKOLAJCZAKCredential: M.D.
Location Address141 N MERAMEC AVEClayton, MO 63105-3750
Mailing Address141 N Meramec AveClayton, MO 63105-3750
Phone(314) 726-1666
Sole ProprietorYes
Medical School CMSSaint Louis University School Of MedicineGraduated 1972
Enumeration DateMarch 29, 2007
Last NPPES UpdateSeptember 11, 2025
✔ NPI 1760502207 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyPsychiatry & Neurology · Child & Adolescent PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0804X
License✔ Licensed in MO · 34665
Definition

Child & Adolescent Psychiatry is a subspecialty of psychiatry with additional skills and training in the diagnosis and treatment of developmental, behavioral, emotional, and mental disorders of childhood and adolescence.

Also ListedPsychiatry & Neurology · PsychiatryTaxonomy 2084P0800X · License 34665 (MO)
Also ListedPsychiatry & Neurology · Geriatric PsychiatryTaxonomy 2084P0805X · License 34665 (MO)

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. James Mikolajczak M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID8224120266
PECOS Enrollment IDI20070822001340
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 2

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
757 services14 patients
Psychotherapy with evaluation and management visit, 45 minutes 90836
Psychotherapy with evaluation and management is a 45-minute session where a healthcare provider discusses your mental and emotional health. They assess your current state, manage any issues, and help you develop coping strategies. This service aims to improve your overall well-being.
675 services13 patients

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

CRISTINA SMUGALA MA, LPC
Counselor (Professional)
141 N MERAMEC AVE, SUITE 109
CLAYTON, MO 63105
St. Louis County (314) 265-3756
DR. ANTOINETTE MARIE TEMPORITI PH.D
Social Worker (Clinical)
141 N MERAMEC AVE, SUITE 205
SAINT LOUIS, MO 63105
St. Louis County (314) 776-1319
LISA CARROLL
Counselor (Professional)
141 N MERAMEC AVE, SUITE 109
CLAYTON, MO 63105
St. Louis County (773) 980-6962
DR. PATRICIA KYLE DENNIS PH.D.
Social Worker (Clinical)
141 N MERAMEC AVE, SUITE 305
CLAYTON, MO 63105
St. Louis County (314) 862-5151
DR. MARY WEBER-YOUNG PHD
Social Worker (Clinical)
141 N MERAMEC AVE, SUITE 111
SAINT LOUIS, MO 63105
St. Louis County (314) 378-6410
CITY SMILES CLAYTON, LLC
Clinic/Center (Dental)
141 N MERAMEC AVE, SUITE 217
SAINT LOUIS, MO 63105
St. Louis County (314) 678-7876
MRS. LORI R LINDER M.A., CCC/SLP
Speech-Language Pathologist
141 N MERAMEC AVE, STE 110A
CLAYTON, MO 63105
St. Louis County (314) 704-5727
MS. PHOEBE ANN CIRIO M.S.W.
Social Worker (Clinical)
141 N MERAMEC AVE, STE 305
SAINT LOUIS, MO 63105
St. Louis County (314) 862-0345

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is James Mikolajczak's NPI number?

The NPI number for James Mikolajczak is 1760502207. It was assigned to this individual provider in the NPPES registry on March 29, 2007.

Where is James Mikolajczak located?

James Mikolajczak practices at 141 N Meramec Ave, Clayton, MO 63105. The listed phone number is (314) 726-1666.

What is James Mikolajczak's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Child & Adolescent Psychiatry, with taxonomy code 2084P0804X.

Is James Mikolajczak enrolled in Medicare?

Yes. James Mikolajczak is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for James Mikolajczak was last updated on September 11, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.