Psychologist | Clinical Psychology

Dr. Marilyn Haas Maher, PH.D.

1400 Spencer St, Longmont, Colorado, 80501-2413

About Dr. Marilyn Haas Maher

Dr. Marilyn Haas Maher is a psychologist based in Longmont, Colorado who is specialized in Clinical Psychology. Active license number of Dr. Marilyn Haas Maher is 2359 for Clinical Psychology in Colorado. Her current practice location is 1400 Spencer St, Longmont. Patients can contact her at 303-775-3621. Dr. Marilyn Haas Maher, PH.D., specializes in Clinical Psychology and her NPI number (Unique professional ID assigned by NPPES) is 1730196254.

Dr. Marilyn Haas Maher 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

Dr. Marilyn Haas Maher'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 Dr. Marilyn Haas Maher
Specialization Clinical Psychology
Credentials PH.D.
Gender Female
Practice Address: 1400 Spencer St,
Longmont, CO - 80501-2413

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 Number1730196254
NPI Enumeration Date: 01 Aug, 2006
NPI Last Update On: 08 Jul, 2007

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 Dr. Marilyn Haas Maher are as mentioned below.

License NumberSpecializationStateStatus
2359Clinical Psychology ColoradoPrimary
PSY11743Clinical Psychology CaliforniaSecondary

Mailing Address

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

Dr. Marilyn Haas Maher
1694 Radcliffe Pl,
Longmont, CO - 80503-2120
Phone: 303-775-3621
Fax: 303-485-5051

Book an Appointment with Dr. Marilyn Haas Maher

To schedule an appointment, contact Dr. Marilyn Haas Maher at 1400 Spencer St, Longmont, Colorado or call the phone number listed below.

Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Dr. Marilyn Haas Maher:

Dr. Marilyn Haas Maher 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, Dr. Marilyn Haas Maher 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.

Dr. Marilyn Haas Maher practices at 1400 Spencer St, Longmont, Colorado, 80501-2413.

To schedule an appointment with Dr. Marilyn Haas Maher, please contact the office at 303-775-3621.

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