Dr. Marianne O'leary
PH.D. | Psychologist | 32+ years Exp
3355 Saint Johns Ln, Suite F, Ellicott City
Maryland, 21042-2605
410-465-5520 410-480-0110
Maps & DirectionsDr. Marianne O'leary is a Ellicott City, Maryland based psychologist with 32 years of experience in General Psychology. She completed her graduation in 1993. She accepts the Medicare-approved amount. Patients will not be billed for any more than the Medicare deductible and coinsurance. Active license number of Dr. Marianne O'leary is 03270 for General Psychology in Maryland. Her current practice location is 3355 Saint Johns Ln, Suite F, Ellicott City. Patients can reach her at 410-465-5520 or can fax her at 410-480-0110. Dr. Marianne O'leary is PH.D. in General Psychology and her NPI number (Unique professional ID assigned by NPPES) is 1720147374.
Dr. Marianne O'leary 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.
Complete Profile:
Dr. Marianne O'leary speciality, credentials, practice address, contact phone number and fax are as below.
Patients can call on the below given phone number for appointment.
| Name: | Dr. Marianne O'leary |
| Specialization: | General Psychology |
| Gender: | Female |
| Credentials: | PH.D. |
| Experience: | 32+ years |
| Medical School Attended: | Other |
| Graduation Year: | 1993 |
| Accepts Medicare Assignment: | Yes |
| Practice Address: | 3355 Saint Johns Ln, Suite F, Ellicott City, Maryland, 21042-2605 |
| Phone: | 410-465-5520 |
| Fax: | 410-480-0110 |
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.
| PAC ID: | 4981883345 |
| Enrollment ID: | I20110201000375 |
| NPI Number: | 1720147374 |
| NPI Enumeration Date: | 08 Dec, 2006 |
| NPI Last Update On: | 08 Jul, 2007 |
Medical Licenses:
Doctors can have one or more medical licenses for different specialities in the same state or different states. Related medical licenses for Dr. Marianne O'leary are as mentioned below.
| License Number | Specialization | State | Status | |
| 03270 | General Psychology | Maryland | Primary | |
Business Mailing Address:
Business mailing address can be used for mailing purpose only, for visiting purpose patients need to refer above mentioned address.
| Address: | Dr. Marianne O'leary 3355 Saint Johns Ln, Suite F Ellicott City, Maryland |
| Zip: | 21042-2605 |
| Phone Number: | 410-465-5520 |
| Fax Number: | 410-480-0110 |
Patients can reach Dr. Marianne O'leary at
3355 Saint Johns Ln, Suite F, Ellicott City, Maryland or can
call to book an appointment on 410-465-5520.
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Data of this site is collected from Medicare & Medicaid Services (CMS) and NPPES. Last updated on 08 December, 2025.