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

Dr. John Barry McKernan, MD

Individual provider Specialist · NPI 1336197755

Dr. John Barry McKernan, MD is a Specialist in Woodstock, Georgia. Licensed in Georgia. Registered with an NPI since 2006.

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

2001 Professional Pkwy Ste 110
Woodstock, GA 30188-6442
Phone: (770) 924-8808
Fax: (770) 924-8266
Show map & directions

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

Specialties & licences

Specialist (primary) Taxonomy 174400000X · Licence 024838 (GA)

Record details

NPI number1336197755
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 5, 2006
Last updated in NPPESJuly 13, 2026

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