Mary Derosia, OTR L
NPI 1447463013 · Occupational Therapist · Boston, MA
Mary Derosia, OTR L is a Occupational Therapist provider in Boston, MA (NPI 1447463013).
Provider details
- NPI number
- 1447463013
- Entity type
- Individual
- Primary specialty
- Occupational TherapistRespiratory, Developmental, Rehabilitative and Restorative Service Providers
- Credential
- OTR L
- Sex
- Female
- Sole proprietor
- No
- License
- 1025 (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
19 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
- 2007-05-08
- Last updated
- 2007-07-08
Frequently asked questions
- What is Mary Derosia's NPI number?
- Mary Derosia's National Provider Identifier (NPI) is 1447463013, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Derosia's specialty?
- Mary Derosia is listed in the NPPES registry with a primary specialty of Occupational Therapist (Respiratory, Developmental, Rehabilitative and Restorative Service Providers).
- Where is Mary Derosia located?
- Mary Derosia's practice location on file with NPPES is 30 Warren St, Boston, MA 02135-3602.
- What is Mary Derosia's phone number?
- The practice phone number listed in the NPPES registry for Mary Derosia is (617) 254-3800.
- Is Mary Derosia's NPI active?
- Yes — Mary Derosia's NPI (1447463013) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.