Katherine Williamson, OTR/L
NPI 1104210319 · Occupational Therapist · Washington, DC
Katherine Williamson, OTR/L is a Occupational Therapist provider in Washington, DC (NPI 1104210319).
Provider details
- NPI number
- 1104210319
- Entity type
- Individual
- Primary specialty
- Occupational TherapistRespiratory, Developmental, Rehabilitative and Restorative Service Providers
- Credential
- OTR/L
- Sex
- Female
- Sole proprietor
- No
- License
- OT010001029 (DC)
Specialties & taxonomies
Respiratory, Developmental, Rehabilitative and Restorative Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
11 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
- 2015-03-25
- Last updated
- 2015-03-25
Frequently asked questions
- What is Katherine Williamson's NPI number?
- Katherine Williamson's National Provider Identifier (NPI) is 1104210319, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine Williamson's specialty?
- Katherine Williamson is listed in the NPPES registry with a primary specialty of Occupational Therapist (Respiratory, Developmental, Rehabilitative and Restorative Service Providers).
- Where is Katherine Williamson located?
- Katherine Williamson's practice location on file with NPPES is 111 Michigan Ave Nw, Washington, DC 20010-2916.
- What is Katherine Williamson's phone number?
- The practice phone number listed in the NPPES registry for Katherine Williamson is (202) 476-3019.
- Is Katherine Williamson's NPI active?
- Yes — Katherine Williamson's NPI (1104210319) is active in the NPPES registry as of the last update on 2015-03-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.