Dr. David Glenn Markwell , PhD, LPC, NCC
Counselor - Professional • Marietta, GA
Professional Overview & Biography Verified Profile Summary
Dr. David Markwell, PhD, LPC, NCC is a registered healthcare professional specializing in Counselor - Professional in Marietta, GA. Practice services are available at 2440 SANDY PLAINS ROAD under active NPI credentials.
Practice Location & Contact Primary Location
2440 Sandy Plains Road
Building 21 Suite 200
Marietta, GA 300667233
Specialty Benchmarks & Practice Insights
Comparative analytics for Counselor - Professional in Marietta, GA
Practicing in Marietta, GA (6655 Statewide)
In-Person Office Visits Only
Under CMS Medicare Fee Schedule vs Standard Submitted Charges
Medical Specialties & State Licenses
CMS Verified: 2025-12-12NUCC Taxonomy Code: 101YP2500X
Definition to come...
Additional State Medicaid & Healthcare Payer Identifiers
Practice Associates & Co-Workers
Healthcare professionals and specialists practicing at this location or sharing practice phone/fax
Social Worker - Clinical
Licensed Clinical Social Worker
Counselor - Mental Health
Counselor
Counselor - Mental Health
Counselor - Professional
Licensed Professional Counselor
Counselor - Professional
Career & Practice History Timeline
Chronological log of verified NPI updates, location relocations, credentials, and registry changes
Registered at 2440 SANDY PLAINS ROAD, BUILDING 21 SUITE 200, MARIETTA, GA 300667233 (Tel: 7709939700)
Registered at 2440 SANDY PLAINS ROAD, BUILDING 21 SUITE 200, MARIETTA, GA 300667233 (Tel: 7709939700)
Registered at 4343 SHALLOWFORD RD STE 220, MARIETTA, GA 300625077 (Tel: 7709939700)
Registered at 4343 SHALLOWFORD RD STE 220, MARIETTA, GA 300625077 (Tel: 7709939700)
NPI status registered as active in NPPES database
Registered at 4343 SHALLOWFORD RD, SUITE C 2, MARIETTA, GA 300625023 (Tel: 7709939700)
Registered at 2451 MITCHELL RD NE, MARIETTA, GA 300627905 (Tel: 7707136064)
Recorded as DAVID MARKWELL, PHD, LPC, NCC
Counselor (License #3565 in GA)
First registered as active Individual Practitioner in NPPES Database.
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NPI Administrative Meta
Mailing Address
2440 Sandy Plains Road, Building 21 Suite 200
Marietta, GA 300667233
Phone: 7709939700
This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.