Sonny Grendel, OTR
NPI 1790254266 · Gerontology Occupational Therapist · Ann Arbor, MI
Sonny Grendel, OTR is a Gerontology Occupational Therapist provider in Ann Arbor, MI (NPI 1790254266).
Provider details
- NPI number
- 1790254266
- Entity type
- Individual
- Primary specialty
- Gerontology Occupational TherapistRespiratory, Developmental, Rehabilitative and Restorative Service Providers
- Credential
- OTR
- Sex
- Female
- Sole proprietor
- No
- License
- 5201007684
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
7 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
- 2018-11-14
- Last updated
- 2018-11-14
Frequently asked questions
- What is Sonny Grendel's NPI number?
- Sonny Grendel's National Provider Identifier (NPI) is 1790254266, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sonny Grendel's specialty?
- Sonny Grendel is listed in the NPPES registry with a primary specialty of Gerontology Occupational Therapist (Respiratory, Developmental, Rehabilitative and Restorative Service Providers).
- Where is Sonny Grendel located?
- Sonny Grendel's practice location on file with NPPES is 4701 E Huron River Dr, Ann Arbor, MI 48105-9335.
- What is Sonny Grendel's phone number?
- The practice phone number listed in the NPPES registry for Sonny Grendel is (734) 975-2633.
- Is Sonny Grendel's NPI active?
- Yes — Sonny Grendel's NPI (1790254266) is active in the NPPES registry as of the last update on 2018-11-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.