Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. Alexander John Mercer, MD

Individual provider Psychiatry Physician · NPI 1821153511

Dr. Alexander John Mercer, MD is a Psychiatry in Woodstock, Georgia. Graduated from Vanderbilt University School of Medicine in 1975, 51 years ago. Practices as a sole proprietor and accepts Medicare assignment. Licensed in Georgia.

Years since qualifying
51
Trained at
Vanderbilt University School of Medicine
Licensed in
GA
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

418 Creekstone Rdg
Woodstock, GA 30188-3740
Phone: (678) 494-8988
Fax: (678) 494-1300
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence 026006 (GA)

Record details

NPI number1821153511
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedDecember 24, 2006
Last updated in NPPESJuly 8, 2007
Mailing address418 Creekstone Rdg, Woodstock, GA 30188-3740

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPSYCHIATRY
Medical schoolVANDERBILT UNIVERSITY SCHOOL OF MEDICINE
Graduated 1975 (51 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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