Donald C Lonnquist

MA, ATR-BC, LPC | Mental Health Counselor


  600 Haverford Rd Ste G101, Haverford
     Pennsylvania, 19041-1139
  610-649-1080    Maps & Directions
Donald C Lonnquist is a Haverford, Pennsylvania based counselor who is specialized as Mental Health Counselor. Active license number of Donald C Lonnquist is PC009178 for Mental Health Counselor in Pennsylvania. His current practice location is 600 Haverford Rd Ste G101, Haverford. Patients can book an appointment with him at 610-649-1080.
Donald C Lonnquist is a licensed professional who helps individuals, couples, and families manage and overcome emotional, psychological, and behavioral challenges. He assess clients’ mental health conditions and develop personalized treatment plans to provide therapy for a range of mental health issues, including anxiety, depression, trauma, relationship issues, stress, grief, and life transitions.
Complete Profile:
Donald C Lonnquist speciality, credentials, practice address, contact phone number and fax are as below. Patients can directly walk in or can call on the below given phone number for appointment.
Name: Donald C Lonnquist
Specialization: Mental Health Counselor
Gender:Male
Credentials: MA, ATR-BC, LPC
Accepts Medicare Assignment:No
Practice Address:600 Haverford Rd Ste G101, Haverford,
Pennsylvania, 19041-1139
Phone:610-649-1080
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.
NPI Number: 1497358758
NPI Enumeration Date: 19 Nov, 2020
NPI Last Update On: 19 Nov, 2020

Medical Licenses:
Doctors can have one or more medical licenses for different specialities in the same state or different states. Related medical licenses for Donald C Lonnquist are as mentioned below.
License NumberSpecializationStateStatus
PC009178Mental Health Counselor PennsylvaniaPrimary
Business Mailing Address:
Business mailing address can be used for mailing purpose only, for visiting purpose patients need to refer above mentioned address.
Address: 600 Haverford Rd Ste G101,
Haverford, Pennsylvania
Zip: 19041-1139
Phone Number: 610-649-1080
Patients can reach Donald C Lonnquist at 600 Haverford Rd Ste G101, Haverford, Pennsylvania or can call to book an appointment on 610-649-1080.
*Data of this site is collected from Medicare & Medicaid Services (CMS) and NPPES. Last updated on 14 July, 2025.

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