Psychologist | Clinical Psychology

Theresa Whitaker, PHD

1775 Massachusetts Ave Ste 3, Lexington, Massachusetts, 02420-5322

About Theresa Whitaker

Theresa Whitaker is a psychologist based in Lexington, Massachusetts who is specialized in Clinical Psychology. Active license number of Theresa Whitaker is 11603 for Clinical Psychology in Massachusetts. Her current practice location is 1775 Massachusetts Ave Ste 3, Lexington. Patients can contact her at 315-404-9554. Theresa Whitaker, PHD, specializes in Clinical Psychology and her NPI number (Unique professional ID assigned by NPPES) is 1528664950.

Theresa Whitaker 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

Theresa Whitaker'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 Theresa Whitaker
Specialization Clinical Psychology
Credentials PHD
Gender Female
Practice Address: 1775 Massachusetts Ave Ste 3,
Lexington, MA - 02420-5322

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 Number1528664950
NPI Enumeration Date: 10 Dec, 2020
NPI Last Update On: 15 Aug, 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 Theresa Whitaker are as mentioned below.

License NumberSpecializationStateStatus
11603Clinical Psychology MassachusettsPrimary

Other Medical Identifiers

Other professional identifiers associated with Theresa Whitaker such as Medicaid, Medicare PIN, NSC, UPIN etc. are mentioned as below.
IdentifierTypeStateIssuer
00000000OtherN/A

Mailing Address

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

Theresa Whitaker
1775 Massachusetts Ave Ste 3,
Lexington, MA - 02420-5322
Phone: 315-404-9554

Book an Appointment with Theresa Whitaker

To schedule an appointment, contact Theresa Whitaker at 1775 Massachusetts Ave Ste 3, Lexington, Massachusetts or call the phone number listed below.

Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Theresa Whitaker:

Theresa Whitaker 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, Theresa Whitaker 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.

Theresa Whitaker practices at 1775 Massachusetts Ave Ste 3, Lexington, Massachusetts, 02420-5322.

To schedule an appointment with Theresa Whitaker, please contact the office at 315-404-9554.

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