Katherine Siwy, MS, OTR/L
NPI 1922760115 · Occupational Therapist · Boston, MA
Katherine Siwy, MS, OTR/L is a Occupational Therapist provider in Boston, MA (NPI 1922760115).
Provider details
- NPI number
- 1922760115
- Entity type
- Individual
- Primary specialty
- Occupational TherapistRespiratory, Developmental, Rehabilitative and Restorative Service Providers
- Credential
- MS, OTR/L
- Sex
- Female
- Sole proprietor
- No
- License
- 7836 (MA)
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
4 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
- 2021-10-06
- Last updated
- 2021-10-06
- Certified
- 2021-10-06
Frequently asked questions
- What is Katherine Siwy's NPI number?
- Katherine Siwy's National Provider Identifier (NPI) is 1922760115, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine Siwy's specialty?
- Katherine Siwy is listed in the NPPES registry with a primary specialty of Occupational Therapist (Respiratory, Developmental, Rehabilitative and Restorative Service Providers).
- Where is Katherine Siwy located?
- Katherine Siwy's practice location on file with NPPES is 15 Parkman St Rm 127, Boston, MA 02114-3117.
- What is Katherine Siwy's phone number?
- The practice phone number listed in the NPPES registry for Katherine Siwy is (617) 643-5228.
- Is Katherine Siwy's NPI active?
- Yes — Katherine Siwy's NPI (1922760115) is active in the NPPES registry as of the last update on 2021-10-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.