Mark W. Williams, M.D., PH.D., General Surgery, S.c.
NPI 1477724102 · Surgery Physician · Princeton, IL
Mark W. Williams, M.D., PH.D., General Surgery, S.c. is a Surgery Physician organization in Princeton, IL (NPI 1477724102).
Provider details
- NPI number
- 1477724102
- Entity type
- Organization
- Primary specialty
- Surgery PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Mark Williams, Director(815) 872-9491
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
18 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
- 2008-03-21
- Last updated
- 2008-03-21
Frequently asked questions
- What is Mark W. Williams, M.D., PH.D., General Surgery, S.c.'s NPI number?
- Mark W. Williams, M.D., PH.D., General Surgery, S.c.'s National Provider Identifier (NPI) is 1477724102, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Mark W. Williams, M.D., PH.D., General Surgery, S.c.?
- Mark W. Williams, M.D., PH.D., General Surgery, S.c. is classified in the NPPES registry as Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Mark W. Williams, M.D., PH.D., General Surgery, S.c. located?
- Mark W. Williams, M.D., PH.D., General Surgery, S.c.'s practice location on file with NPPES is 530 Park Ave E, Princeton, IL 61356-3901.
- What is Mark W. Williams, M.D., PH.D., General Surgery, S.c.'s phone number?
- The practice phone number listed in the NPPES registry for Mark W. Williams, M.D., PH.D., General Surgery, S.c. is (815) 872-9491.
- Who is the authorized official for Mark W. Williams, M.D., PH.D., General Surgery, S.c.?
- The authorized official listed on Mark W. Williams, M.D., PH.D., General Surgery, S.c.'s NPPES record is Mark Williams, Director. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Mark W. Williams, M.D., PH.D., General Surgery, S.c.'s NPI active?
- Yes — Mark W. Williams, M.D., PH.D., General Surgery, S.c.'s NPI (1477724102) is active in the NPPES registry as of the last update on 2008-03-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.