Doreen Grossman, OT
NPI 1154545713 · Occupational Therapist · Waltham, MA
Doreen Grossman, OT is a Occupational Therapist provider in Waltham, MA (NPI 1154545713).
Provider details
- NPI number
- 1154545713
- Entity type
- Individual
- Primary specialty
- Occupational TherapistRespiratory, Developmental, Rehabilitative and Restorative Service Providers
- Credential
- OT
- Sex
- Female
- Sole proprietor
- No
- License
- 198 (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
- 2007-04-12
- Last updated
- 2007-07-08
Frequently asked questions
- What is Doreen Grossman's NPI number?
- Doreen Grossman's National Provider Identifier (NPI) is 1154545713, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Doreen Grossman's specialty?
- Doreen Grossman is listed in the NPPES registry with a primary specialty of Occupational Therapist (Respiratory, Developmental, Rehabilitative and Restorative Service Providers).
- Where is Doreen Grossman located?
- Doreen Grossman's practice location on file with NPPES is 977 Main St, Waltham, MA 02451-7406.
- What is Doreen Grossman's phone number?
- The practice phone number listed in the NPPES registry for Doreen Grossman is (781) 891-0452.
- Is Doreen Grossman's NPI active?
- Yes — Doreen Grossman's NPI (1154545713) 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.