Dr. Mary Sean O'halloran
LP | Psychologist | 36+ years Exp
1751 Hover St, Ste B4, Longmont
Colorado, 80501-7181
720-635-0755 303-223-3306
Maps & DirectionsDr. Mary Sean O'halloran is a Longmont, Colorado based psychologist with 36 years of experience in General Psychology. She completed her graduation in 1989. 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. Mary Sean O'halloran is 2218 for General Psychology in Colorado. Her current practice location is 1751 Hover St, Ste B4, Longmont. Patients can reach her at 720-635-0755 or can fax her at 303-223-3306. Dr. Mary Sean O'halloran is LP in General Psychology and her NPI number (Unique professional ID assigned by NPPES) is 1477123511.
Dr. Mary Sean O'halloran 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. Mary Sean O'halloran 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. Mary Sean O'halloran |
| Specialization: | General Psychology |
| Gender: | Female |
| Credentials: | LP |
| Experience: | 36+ years |
| Medical School Attended: | Other |
| Graduation Year: | 1989 |
| Accepts Medicare Assignment: | Yes |
| Practice Address: | 1751 Hover St, Ste B4, Longmont, Colorado, 80501-7181 |
| Phone: | 720-635-0755 |
| Fax: | 303-223-3306 |
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: | 7315344975 |
| Enrollment ID: | I20210923002733 |
| NPI Number: | 1477123511 |
| NPI Enumeration Date: | 30 Jun, 2021 |
| NPI Last Update On: | 20 Sep, 2021 |
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. Mary Sean O'halloran are as mentioned below.
| License Number | Specialization | State | Status | |
| 2218 | General Psychology | Colorado | 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. Mary Sean O'halloran 525 Bowen St, Longmont, Colorado |
| Zip: | 80501-5333 |
| Phone Number: | 720-635-0755 |
Patients can reach Dr. Mary Sean O'halloran at
1751 Hover St, Ste B4, Longmont, Colorado or can
call to book an appointment on 720-635-0755.
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Data of this site is collected from Medicare & Medicaid Services (CMS) and NPPES. Last updated on 13 October, 2025.