Margaret Gruber, OTR
NPI 1659890267 · Occupational Therapist · Oak Park, IL
Margaret Gruber, OTR is a Occupational Therapist provider in Oak Park, IL (NPI 1659890267).
Provider details
- NPI number
- 1659890267
- Entity type
- Individual
- Primary specialty
- Occupational TherapistRespiratory, Developmental, Rehabilitative and Restorative Service Providers
- Credential
- OTR
- Sex
- Female
- Sole proprietor
- No
- License
- 056012115 (IL)
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
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
- 2017-09-14
- Last updated
- 2025-08-26
- Certified
- 2025-08-26
Frequently asked questions
- What is Margaret Gruber's NPI number?
- Margaret Gruber's National Provider Identifier (NPI) is 1659890267, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret Gruber's specialty?
- Margaret Gruber is listed in the NPPES registry with a primary specialty of Occupational Therapist (Respiratory, Developmental, Rehabilitative and Restorative Service Providers).
- Where is Margaret Gruber located?
- Margaret Gruber's practice location on file with NPPES is 719 N Marion St, Oak Park, IL 60302-1530.
- What is Margaret Gruber's phone number?
- The practice phone number listed in the NPPES registry for Margaret Gruber is (855) 678-7338.
- Is Margaret Gruber's NPI active?
- Yes — Margaret Gruber's NPI (1659890267) is active in the NPPES registry as of the last update on 2025-08-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.