William Parker, D.O.
NPI 1790946333 · Critical Care Medicine (Internal Medicine) Physician · Columbia, MO
Enrolled with Medicare as Practitioner - Critical Care (intensivists) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Parker, D.O. is a Critical Care Medicine (Internal Medicine) Physician provider in Columbia, MO (NPI 1790946333).
Provider details
- NPI number
- 1790946333
- Entity type
- Individual
- Primary specialty
- Critical Care Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- 2009026502 (MO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
2 documented practice locations
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
Additional practice locations (1)
- 1125 Madison StJefferson City, MO 65101-5227Phone: (573) 634-2620Fax: (573) 634-2033
Registry dates
- Enumerated
- 2008-06-17
- Last updated
- 2023-04-18
- Certified
- 2023-04-18
Frequently asked questions
- What is William Parker's NPI number?
- William Parker's National Provider Identifier (NPI) is 1790946333, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Parker's specialty?
- William Parker is listed in the NPPES registry with a primary specialty of Critical Care Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is William Parker located?
- William Parker's practice location on file with NPPES is 1 Hospital Dr, Columbia, MO 65212-0001.
- What is William Parker's phone number?
- The practice phone number listed in the NPPES registry for William Parker is (573) 882-8788.
- Does William Parker accept Medicare?
- William Parker is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Parker's NPI active?
- Yes — William Parker's NPI (1790946333) is active in the NPPES registry as of the last update on 2023-04-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.