Dr. David Glenn Markwell
PHD, LPC, NCC | Professional Counselor
2440 Sandy Plains Road, Building 21 Suite 200, Marietta
Georgia, 30066-7233
770-993-9700 770-993-9800
Maps & DirectionsDr. David Glenn Markwell is a Marietta, Georgia based counselor who is specialized as 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 book an appointment with him at 770-993-9700.
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.
Complete Profile:
Dr. David Glenn Markwell 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: | Dr. David Glenn Markwell |
| Specialization: | Professional Counselor |
| Gender: | Male |
| Credentials: | PHD, LPC, NCC |
| Accepts Medicare Assignment: | No |
| Practice Address: | 2440 Sandy Plains Road, Building 21 Suite 200, Marietta,
Georgia, 30066-7233 |
| Phone: | 770-993-9700 |
| 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 Number: | 1336173541 |
| NPI Enumeration Date: | 11 Jul, 2006 |
| NPI Last Update On: | 12 Dec, 2025 |
Medical Licenses:
Doctors can have 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 Number | Specialization | State | Status | |
| 3565 | Professional Counselor | Georgia | Primary | |
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.
| Identifier | Type | State | Issuer |
| 201137 | Other | Georgia | BLUE CROSS BLUE SHIELD |
| 2013 | Other | | TRICARE |
| 376933122C | Medicaid | Georgia | |
| 285087495 | Other | | UNITED BEHAVORIAL |
| 477177000 | Other | Georgia | MAGELLAN |
| 7007423 | Other | Georgia | AETNA |
Business Mailing Address:
Business mailing address can be used for mailing purpose only, for visiting purpose patients need to refer above mentioned address.
| Address: | 2440 Sandy Plains Road, Building 21 Suite 200
Marietta, Georgia |
| Zip: | 30066-7233 |
| Phone Number: | 770-993-9700 |
| Fax Number: | 770-993-9800 |
Patients can reach Dr. David Glenn Markwell at
2440 Sandy Plains Road, Building 21 Suite 200, Marietta, Georgia or can
call to book an appointment on 770-993-9700.
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Data of this site is collected from Medicare & Medicaid Services (CMS) and NPPES. Last updated on 09 February, 2026.