Mark Sisson, M.D.
NPI 1558437020 · Family Medicine Physician · Fort Gordon, GA
Enrolled with Medicare as Order and Referring Only - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Sisson, M.D. is a Family Medicine Physician provider in Fort Gordon, GA (NPI 1558437020).
Provider details
- NPI number
- 1558437020
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 0101048953 (VA)
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
19 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
- 2006-11-28
- Last updated
- 2017-07-06
Frequently asked questions
- What is Mark Sisson's NPI number?
- Mark Sisson's National Provider Identifier (NPI) is 1558437020, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Sisson's specialty?
- Mark Sisson is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Sisson located?
- Mark Sisson's practice location on file with NPPES is 300 W Hospital Rd, Fort Gordon, GA 30905-5741.
- What is Mark Sisson's phone number?
- The practice phone number listed in the NPPES registry for Mark Sisson is (706) 787-0127.
- Does Mark Sisson accept Medicare?
- Mark Sisson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Sisson's NPI active?
- Yes — Mark Sisson's NPI (1558437020) is active in the NPPES registry as of the last update on 2017-07-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.