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

Geoffrey B Hartwig, MD

Individual provider Sleep Medicine (Psychiatry & Neurology) Physician · NPI 1235141888

Geoffrey B Hartwig, MD is a Sleep Medicine (Psychiatry & Neurology) Physician in Hattiesburg, Mississippi. Licensed in Mississippi. Registered with an NPI since 2006.

Licensed in
MS
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

415 S 28th Ave
Hattiesburg, MS 39401-7246
Phone: (601) 268-5620
Fax: (601) 268-5851
Show map & directions

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

Specialties & licences

Sleep Medicine (Psychiatry & Neurology) Physician (primary) Taxonomy 2084S0012X · Licence 09059 (MS)

Record details

NPI number1235141888
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 12, 2006
Last updated in NPPESJanuary 30, 2015