Professional Therapist

Mary C O'brien, L.P.C.

9378 Olive Blvd, Ste. 317, Saint Louis, Missouri, 63132-3215

About Mary C O'brien

Mary C O'brien is a therapist based in Saint Louis, Missouri who is specialized in Professional Counselor. Active license number of Mary C O'brien is 2003032103 for Professional Counselor in Missouri. Her current practice location is 9378 Olive Blvd, Ste. 317, Saint Louis. Patients can reach her at 314-994-9344 or can fax her at 314-994-3007. Mary C O'brien is L.P.C. in Professional Counselor and her NPI number (Unique professional ID assigned by NPPES) is 1194874909.

Mary C O'brien is a licensed mental health practitioner trained to help individuals, couples, and groups address emotional, psychological, and behavioral challenges. She uses talk therapy and evidence-based counseling methods to support clients in managing mental health conditions, improving relationships, and developing coping strategies for life’s difficulties.

Practice Information

Mary C O'brien speciality, credentials, practice address, contact phone number and fax are as below. Patients can call on the below given phone number for appointment.

Provider Name Mary C O'brien
Specialization Professional Counselor
Credentials L.P.C.
Gender Female
Practice Address: 9378 Olive Blvd, Ste. 317
Saint Louis, MO - 63132-3215
Fax 314-994-3007

Professional Identification Codes

NPI number stands for National Provider Identifier which is a unique 10-digit identification number issued to health care providers in the United States by the Centers for Medicare and Medicaid Services (CMS). NPI details are as mentioned below.

NPI Number1194874909
NPI Enumeration Date: 10 Jan, 2007
NPI Last Update On: 08 Jul, 2007

Medical Licenses:

Healthcare professionals can hold one or more medical licenses for different specialities in the same state or different states. Related medical licenses for Mary C O'brien are as mentioned below.

License NumberSpecializationStateStatus
2003032103Professional Counselor MissouriPrimary

Mailing Address

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

Mary C O'brien
9378 Olive Blvd, Ste. 317
Saint Louis, MO - 63132-3215
Phone: 314-994-9344
Fax: 314-994-3007

Book an Appointment with Mary C O'brien

To schedule an appointment, contact Mary C O'brien at 9378 Olive Blvd, Ste. 317, Saint Louis, Missouri or call on below stated phone number.

Call to Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Mary C O'brien:

Mary C O'brien is a therapist specializing in Professional Counselor. She is a licensed mental health practitioner trained to help individuals, couples, and groups address emotional, psychological, and behavioral challenges. She uses talk therapy and evidence-based counseling methods to support clients in managing mental health conditions, improving relationships, and developing coping strategies for life’s difficulties.

Yes, Mary C O'brien is currently accepting new patients. To schedule an appointment, contact the office directly and schedule an appointment.

Mary C O'brien practices at 9378 Olive Blvd, Ste. 317, Saint Louis, Missouri, 63132-3215.

To schedule an appointment with Mary C O'brien, please contact the office at 314-994-9344.

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