Psychologist | General Psychology

John Lewandowski Iii, PSYD

350 E Congress Pkwy Ste C, Crystal Lake, Illinois, 60014-6284

About John Lewandowski Iii

John Lewandowski Iii is a psychologist based in Crystal Lake, Illinois who is specialized in General Psychology. His current practice location is 350 E Congress Pkwy Ste C, Crystal Lake. Patients can contact him at 815-356-5050 or can fax him at 815-356-5094. John Lewandowski Iii, PSYD, specializes in General Psychology and his NPI number (Unique professional ID assigned by NPPES) is 1104307917.

John Lewandowski Iii 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.

Practice Information

John Lewandowski Iii'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 John Lewandowski Iii
Specialization General Psychology
Credentials PSYD
Gender Male
Practice Address: 350 E Congress Pkwy Ste C,
Crystal Lake, IL - 60014-6284
Fax 815-356-5094

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.

NPI Number1104307917
NPI Enumeration Date: 29 Aug, 2018
NPI Last Update On: 29 Aug, 2018

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 John Lewandowski Iii are as mentioned below.

License NumberSpecializationStateStatus
General Psychology Primary

Mailing Address

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

John Lewandowski Iii
1701 E Woodfield Rd Ste 1000,
Schaumburg, IL - 60173-5113
Phone: 847-240-2211
Fax: 847-240-2418

Book an Appointment with John Lewandowski Iii

To schedule an appointment, contact John Lewandowski Iii at 350 E Congress Pkwy Ste C, Crystal Lake, Illinois or call the phone number listed below.

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Frequently Asked Questions

Below are some commonly asked questions about John Lewandowski Iii:

John Lewandowski Iii is a psychologist specializing in General 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.

Yes, John Lewandowski Iii 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.

John Lewandowski Iii practices at 350 E Congress Pkwy Ste C, Crystal Lake, Illinois, 60014-6284.

To schedule an appointment with John Lewandowski Iii, please contact the office at 815-356-5050.

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