Psychologist | Clinical Psychology

Reilly Mackenna Niesz, MA, TLLP

29550 Five Mile Rd, Livonia, Michigan, 48154-3710

About Reilly Mackenna Niesz

Reilly Mackenna Niesz is a psychologist based in Livonia, Michigan who is specialized in Clinical Psychology. Active license number of Reilly Mackenna Niesz is 6362010423 for Clinical Psychology in Michigan. Her current practice location is 29550 Five Mile Rd, Livonia. Patients can contact her at 800-395-3223. Reilly Mackenna Niesz, MA, TLLP, specializes in Clinical Psychology and her NPI number (Unique professional ID assigned by NPPES) is 1437067428.

Reilly Mackenna Niesz is a mental health professional with highly specialized training in the diagnosis and psychological treatment of mental, behavioral and emotional illnesses, including obsessive-compulsive disorder (OCD). Her main focus is on diagnosing and treating mental, emotional, and behavioral disorders. Some of the common disorders that she can treat are learning disabilities, substance abuse, depression, anxiety, and eating disorders.

Practice Information

Reilly Mackenna Niesz'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 Reilly Mackenna Niesz
Specialization Clinical Psychology
Credentials MA, TLLP
Gender Female
Practice Address: 29550 Five Mile Rd,
Livonia, MI - 48154-3710

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 Number1437067428
NPI Enumeration Date: 31 Aug, 2026
NPI Last Update On: 09 Sep, 2026

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 Reilly Mackenna Niesz are as mentioned below.

License NumberSpecializationStateStatus
6362010423Clinical Psychology MichiganPrimary

Mailing Address

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

Reilly Mackenna Niesz
26545 American Dr,
Southfield, MI - 48034-6115

Book an Appointment with Reilly Mackenna Niesz

To schedule an appointment, contact Reilly Mackenna Niesz at 29550 Five Mile Rd, Livonia, Michigan or call the phone number listed below.

Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Reilly Mackenna Niesz:

Reilly Mackenna Niesz is a psychologist specializing in Clinical Psychology. She is a mental health professional with highly specialized training in the diagnosis and psychological treatment of mental, behavioral and emotional illnesses, including obsessive-compulsive disorder (OCD). Her main focus is on diagnosing and treating mental, emotional, and behavioral disorders. Some of the common disorders that she can treat are learning disabilities, substance abuse, depression, anxiety, and eating disorders.

Yes, Reilly Mackenna Niesz 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.

Reilly Mackenna Niesz practices at 29550 Five Mile Rd, Livonia, Michigan, 48154-3710.

To schedule an appointment with Reilly Mackenna Niesz, please contact the office at 800-395-3223.

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