Psychologist | Adult Development & Aging Psychology

Dr. Anne Marie Tietjen, PH.D.

1201 11th St, Suite 201, Bellingham, Washington, 98225-7093

About Dr. Anne Marie Tietjen

Dr. Anne Marie Tietjen is a psychologist based in Bellingham, Washington who is specialized in Adult Development & Aging Psychology. Active license number of Dr. Anne Marie Tietjen is PY00001272 for Cognitive & Behavioral Psychology in Washington. Her current practice location is 1201 11th St, Suite 201, Bellingham. Patients can contact her at 360-647-2808 or can fax her at 360-752-0037. Dr. Anne Marie Tietjen, PH.D., specializes in Adult Development & Aging Psychology and her NPI number (Unique professional ID assigned by NPPES) is 1821121195.

Dr. Anne Marie Tietjen provide support to individuals at all points of life who are facing developmental issues or problems related to aging.
Adult development & aging psychologist help patients to deal with motor skill development, language acquisition, emotional development, the emergence of self-awareness and self-concept, cognitive development during childhood and throughout life, social and cultural influences on child development, personality development, moral reasoning, developmental challenges and learning disabilities.

Practice Information

Dr. Anne Marie Tietjen'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. Anne Marie Tietjen
Specialization Adult Development & Aging Psychology
Credentials PH.D.
Gender Female
Practice Address: 1201 11th St, Suite 201
Bellingham, WA - 98225-7093
Fax 360-752-0037

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 Number1821121195
NPI Enumeration Date: 14 Mar, 2007
NPI Last Update On: 11 Sep, 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 Dr. Anne Marie Tietjen are as mentioned below.

License NumberSpecializationStateStatus
PY00001272Cognitive & Behavioral Psychology WashingtonPrimary
PY00001272Adult Development & Aging Psychology WashingtonSecondary
PY00001272Clinical Psychology WashingtonSecondary
PY00001272Clinical Child & Adolescent Psychology WashingtonSecondary
PY00001272Mental Retardation & Developmental Disabilities Psychology WashingtonSecondary
PY00001272General Psychology WashingtonSecondary

Mailing Address

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

Dr. Anne Marie Tietjen
708 Fieldston Rd,
Bellingham, WA - 98225-8704

Book an Appointment with Dr. Anne Marie Tietjen

To schedule an appointment, contact Dr. Anne Marie Tietjen at 1201 11th St, Suite 201, Bellingham, Washington or call the phone number listed below.

Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Dr. Anne Marie Tietjen:

Dr. Anne Marie Tietjen is a psychologist specializing in Cognitive & Behavioral Psychology. She has variety of professional responsibilities, including assessment (identifying, diagnosing, and conceptualizing problems experienced by individuals or groups), intervention (creating, implementing and evaluating interventions designed to induce positive change) and consultation. Cognitive Behavioral Psychologists also participates in research, education, training, and clinical practice including a range of issues and populations.

Yes, Dr. Anne Marie Tietjen 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. Anne Marie Tietjen practices at 1201 11th St, Suite 201, Bellingham, Washington, 98225-7093.

To schedule an appointment with Dr. Anne Marie Tietjen, please contact the office at 360-647-2808.

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