Mary Swierzowski, MS, OTR/L
NPI 1346746740 · Occupational Therapist · Washington, DC
Mary Swierzowski, MS, OTR/L is a Occupational Therapist provider in Washington, DC (NPI 1346746740).
Provider details
- NPI number
- 1346746740
- Entity type
- Individual
- Primary specialty
- Occupational TherapistRespiratory, Developmental, Rehabilitative and Restorative Service Providers
- Credential
- MS, OTR/L
- Sex
- Female
- Sole proprietor
- No
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
8 yrs in NPPES registry
- Profile completeness38% of score
83% 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
- 2018-04-04
- Last updated
- 2025-10-12
- Certified
- 2025-10-12
Frequently asked questions
- What is Mary Swierzowski's NPI number?
- Mary Swierzowski's National Provider Identifier (NPI) is 1346746740, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Swierzowski's specialty?
- Mary Swierzowski is listed in the NPPES registry with a primary specialty of Occupational Therapist (Respiratory, Developmental, Rehabilitative and Restorative Service Providers).
- Where is Mary Swierzowski located?
- Mary Swierzowski's practice location on file with NPPES is 111 Michigan Ave Nw, Washington, DC 20010-2916.
- What is Mary Swierzowski's phone number?
- The practice phone number listed in the NPPES registry for Mary Swierzowski is (888) 884-2327.
- Is Mary Swierzowski's NPI active?
- Yes — Mary Swierzowski's NPI (1346746740) is active in the NPPES registry as of the last update on 2025-10-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.