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

John Michael Halwig, MD

Individual provider Allergy Physician · NPI 1841230760

John Michael Halwig, MD is an Allergy Physician in Austell, Georgia. Works from 2 locations. Licensed in Georgia.

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

1620 Mulkey Rd Ste 100
Austell, GA 30106
Phone: (770) 953-3331
Fax: (770) 739-9609
Show map & directions

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

Additional practice locations (1)

  • 4645 Timber Ridge Dr Ste 160, Douglasville, GA 30135-7542 — (770) 953-3331

Specialties & licences

Allergy Physician (primary) Taxonomy 207KA0200X · Licence 27558 (GA)

Record details

NPI number1841230760
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 8, 2006
Last updated in NPPESNovember 12, 2020
Certification dateNovember 12, 2020
Mailing address8200 Roberts Dr Ste 450, Sandy Springs, GA 30350-4115

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