Geoffrey Hartwig, MD
NPI 1235141888 · Sleep Medicine (Psychiatry & Neurology) Physician · Hattiesburg, MS
Geoffrey Hartwig, MD is a Sleep Medicine (Psychiatry & Neurology) Physician provider in Hattiesburg, MS (NPI 1235141888).
Provider details
- NPI number
- 1235141888
- Entity type
- Individual
- Primary specialty
- Sleep Medicine (Psychiatry & Neurology) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 09059 (MS)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-12
- Last updated
- 2015-01-30
Frequently asked questions
- What is Geoffrey Hartwig's NPI number?
- Geoffrey Hartwig's National Provider Identifier (NPI) is 1235141888, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Geoffrey Hartwig's specialty?
- Geoffrey Hartwig is listed in the NPPES registry with a primary specialty of Sleep Medicine (Psychiatry & Neurology) Physician (Allopathic & Osteopathic Physicians).
- Where is Geoffrey Hartwig located?
- Geoffrey Hartwig's practice location on file with NPPES is 415 S 28th Ave, Hattiesburg, MS 39401-7246.
- What is Geoffrey Hartwig's phone number?
- The practice phone number listed in the NPPES registry for Geoffrey Hartwig is (601) 268-5620.
- Is Geoffrey Hartwig's NPI active?
- Yes — Geoffrey Hartwig's NPI (1235141888) is active in the NPPES registry as of the last update on 2015-01-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.