Professional Therapist

Dr. David Glenn Markwell, PHD, LPC, NCC

2440 Sandy Plains Road, Building 21 Suite 200, Marietta, Georgia, 30066-7233

About Dr. David Glenn Markwell

Dr. David Glenn Markwell is a therapist based in Marietta, Georgia who is specialized in Professional Counselor. Active license number of Dr. David Glenn Markwell is 3565 for Professional Counselor in Georgia. His current practice location is 2440 Sandy Plains Road, Building 21 Suite 200, Marietta. Patients can reach him at 770-993-9700 or can fax him at 770-993-9800. Dr. David Glenn Markwell is PHD, LPC, NCC in Professional Counselor and his NPI number (Unique professional ID assigned by NPPES) is 1336173541.

Dr. David Glenn Markwell is a licensed mental health practitioner trained to help individuals, couples, and groups address emotional, psychological, and behavioral challenges. He uses talk therapy and evidence-based counseling methods to support clients in managing mental health conditions, improving relationships, and developing coping strategies for life’s difficulties.

Practice Information

Dr. David Glenn Markwell speciality, 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. David Glenn Markwell
Specialization Professional Counselor
Credentials PHD, LPC, NCC
Gender Male
Practice Address: 2440 Sandy Plains Road, Building 21 Suite 200
Marietta, GA - 30066-7233
Fax 770-993-9800

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 Number1336173541
NPI Enumeration Date: 11 Jul, 2006
NPI Last Update On: 12 Dec, 2025

Medical Licenses:

Healthcare professionals can hold one or more medical licenses for different specialities in the same state or different states. Related medical licenses for Dr. David Glenn Markwell are as mentioned below.

License NumberSpecializationStateStatus
3565Professional Counselor GeorgiaPrimary

Other Medical Identifiers

Other legacy medical identifiers associated with Dr. David Glenn Markwell such as Medicaid, Medicare PIN, NSC, UPIN etc. are mentioned as below.
IdentifierTypeStateIssuer
201137OtherGeorgiaBLUE CROSS BLUE SHIELD
2013OtherTRICARE
376933122CMedicaidGeorgia
285087495OtherUNITED BEHAVORIAL
477177000OtherGeorgiaMAGELLAN
7007423OtherGeorgiaAETNA

Mailing Address

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

Dr. David Glenn Markwell
2440 Sandy Plains Road, Building 21 Suite 200
Marietta, GA - 30066-7233
Phone: 770-993-9700
Fax: 770-993-9800

Book an Appointment with Dr. David Glenn Markwell

To schedule an appointment, contact Dr. David Glenn Markwell at 2440 Sandy Plains Road, Building 21 Suite 200, Marietta, Georgia or call on below stated phone number.

Call to Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Dr. David Glenn Markwell:

David Glenn Markwell is a therapist specializing in Professional Counselor. He is a licensed mental health practitioner trained to help individuals, couples, and groups address emotional, psychological, and behavioral challenges. He uses talk therapy and evidence-based counseling methods to support clients in managing mental health conditions, improving relationships, and developing coping strategies for life’s difficulties.

Yes, David Glenn Markwell is currently accepting new patients. To schedule an appointment, contact the office directly and schedule an appointment.

David Glenn Markwell practices at 2440 Sandy Plains Road, Building 21 Suite 200, Marietta, Georgia, 30066-7233.

To schedule an appointment with David Glenn Markwell, please contact the office at 770-993-9700.

Reviews & Feedback

Have you visited Dr. David Glenn Markwell? Share your experience to help others looking for a Professional Counselor in Marietta, GA.

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