Geoffrey B. Hartwig, MD
Sleep Medicine (Psychiatry & Neurology) Physician · Hattiesburg, MS
Geoffrey B. Hartwig, MD is a sleep medicine (psychiatry & neurology) physician with a practice address in Hattiesburg, Mississippi, and NPI 1235141888, issued on Aug 12, 2006. Check the license (Mississippi 09059, as entered in NPPES) on the Mississippi State Board of Medical Licensure; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Geoffrey B. Hartwig
- Credential
- MD
- Primary taxonomy
- Sleep Medicine (Psychiatry & Neurology) Physician 2084S0012X
- License number
- 09059 MS
Self-reported in NPPES; status is on the state search - Practice location
- 415 S 28TH Ave, Hattiesburg, MS 39401
- Phone
- (601) 268-5620
- Enumerated
- Aug 12, 2006
- Record last updated
- Jan 30, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (601) 268-5851
- Medicaid IDs
- 00019370 MS
1589586 LA - Entity
- Type 1 · individual
Also registered at 415 S 28TH Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ralph Abraham, MDSurgery Physician1013931674
- Logan AbramsPerfusionist1346803061
- William Adcock, AGACNPCritical Care Medicine Nurse Practitioner1225894264
- Mansoor Ahmad, MDHospitalist Physician1154096758
- Mohammed Ahmed, MDHospitalist Physician1942224514
- Muthanna Al-Ghuraibawi, M.D.Hospitalist Physician1811622665
Verify Geoffrey B. Hartwig in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMississippi State Board of Medical Licensure
Search for license 09059Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Sleep Medicine (Psychiatry & Neurology) Physician providers in Mississippi
There are 6 sleep medicine (psychiatry & neurology) physician records in Mississippi. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
Other sleep medicine (psychiatry & neurology) physician records in Mississippi
- Jordan Armstrong, MDJackson, MS1346869633
- Christopher Karcher, MDOcean Springs, MS1194810408
- Reabie LadunaDiberville, MS1528837010
- Krishna Nalluri, M.D.Gulfport, MS1336212554
- Sagar Patel, MDJackson, MS1386725570
Common questions
What is Geoffrey B. Hartwig, MD's NPI number?
Geoffrey B. Hartwig, MD's National Provider Identifier (NPI) is 1235141888, issued on Aug 12, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Geoffrey B. Hartwig, MD located?
The NPPES record lists a practice address at 415 S 28TH Ave, Hattiesburg, MS, 39401. Phone: (601) 268-5620. Providers update this record themselves, so call before visiting.
How can I verify Geoffrey B. Hartwig, MD's license?
NPPES lists Mississippi license number 09059, as entered by the provider. Search the Mississippi State Board of Medical Licensure at https://www.msbml.ms.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.