Psychologist | General Psychology

Marissa Lynn O'neill, TLLP

1205 E Wackerly St, Midland, Michigan, 48642-7035

About Marissa Lynn O'neill

Marissa Lynn O'neill is a psychologist based in Midland, Michigan who is specialized in General Psychology. Active license number of Marissa Lynn O'neill is 6361005251 for General Psychology in Michigan. Her current practice location is 1205 E Wackerly St, Midland. Patients can contact her at 989-832-9161 or can fax her at 989-832-8813. Marissa Lynn O'neill, TLLP, specializes in General Psychology and her NPI number (Unique professional ID assigned by NPPES) is 1033569868.

Marissa Lynn O'neill is specialized in psychological testing and evaluating or assessing patient's personal characteristics, such as intelligence, personality, abilities, interests, aptitudes, and neuropsychological functioning. Accordingly, she performs counseling, psychoanalysis, psychotherapy, hypnosis, biofeedback, and behavior analysis and therapy. She 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

Marissa Lynn O'neill'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 Marissa Lynn O'neill
Specialization General Psychology
Credentials TLLP
Gender Female
Practice Address: 1205 E Wackerly St,
Midland, MI - 48642-7035
Fax 989-832-8813

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 Number1033569868
NPI Enumeration Date: 13 Jun, 2016
NPI Last Update On: 22 May, 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 Marissa Lynn O'neill are as mentioned below.

License NumberSpecializationStateStatus
6361005251General 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.

Marissa Lynn O'neill
4187 Brockway Rd,
Saginaw, MI - 48638-4776
Phone: 616-894-6744

Book an Appointment with Marissa Lynn O'neill

To schedule an appointment, contact Marissa Lynn O'neill at 1205 E Wackerly St, Midland, Michigan or call the phone number listed below.

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Frequently Asked Questions

Below are some commonly asked questions about Marissa Lynn O'neill:

Marissa Lynn O'neill is a psychologist specializing in General Psychology. She is specialized in psychological testing and evaluating or assessing patient's personal characteristics, such as intelligence, personality, abilities, interests, aptitudes, and neuropsychological functioning. Accordingly, she performs counseling, psychoanalysis, psychotherapy, hypnosis, biofeedback, and behavior analysis and therapy. She 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, Marissa Lynn O'neill 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.

Marissa Lynn O'neill practices at 1205 E Wackerly St, Midland, Michigan, 48642-7035.

To schedule an appointment with Marissa Lynn O'neill, please contact the office at 989-832-9161.

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