IndividualActive
Harold Williamson, MD
NPI 1386696797 · Family Medicine Physician · Columbia, MO
Harold Williamson, MD is a Family Medicine Physician provider in Columbia, MO (NPI 1386696797).
Provider details
- NPI number
- 1386696797
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MDR7A41 (MO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(91/100 index)
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
3217 S Providence Rd
Columbia, MO 65203-3639
Phone: (573) 884-9191
Fax: (573) 884-5559
Street-level locationGet directions
Mailing address
Po Box 7687
Columbia, MO 65205-7687
Registry dates
- Enumerated
- 2006-05-16
- Last updated
- 2008-09-25
Frequently asked questions
- What is Harold Williamson's NPI number?
- Harold Williamson's National Provider Identifier (NPI) is 1386696797, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Harold Williamson's specialty?
- Harold Williamson is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Harold Williamson located?
- Harold Williamson's practice location on file with NPPES is 3217 S Providence Rd, Columbia, MO 65203-3639.
- What is Harold Williamson's phone number?
- The practice phone number listed in the NPPES registry for Harold Williamson is (573) 884-9191.
- Is Harold Williamson's NPI active?
- Yes — Harold Williamson's NPI (1386696797) is active in the NPPES registry as of the last update on 2008-09-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.