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Leonard Gell, MD
NPI 1023380797 · Allergy & Immunology Physician · Ada, MI
Leonard Gell, MD is a Allergy & Immunology Physician provider in Ada, MI (NPI 1023380797).
Provider details
- NPI number
- 1023380797
- Entity type
- Individual
- Primary specialty
- Allergy & Immunology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- L1647957 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(80/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
14 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
7650 Conservation St Ne
Ada, MI 49301-9522
Phone: (616) 676-9438
Street-level locationGet directions
Mailing address
970 Parchment Dr Se
Grand Rapids, MI 49546-8302
Registry dates
- Enumerated
- 2012-01-27
- Last updated
- 2012-01-27
Frequently asked questions
- What is Leonard Gell's NPI number?
- Leonard Gell's National Provider Identifier (NPI) is 1023380797, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Leonard Gell's specialty?
- Leonard Gell is listed in the NPPES registry with a primary specialty of Allergy & Immunology Physician (Allopathic & Osteopathic Physicians).
- Where is Leonard Gell located?
- Leonard Gell's practice location on file with NPPES is 7650 Conservation St Ne, Ada, MI 49301-9522.
- What is Leonard Gell's phone number?
- The practice phone number listed in the NPPES registry for Leonard Gell is (616) 676-9438.
- Is Leonard Gell's NPI active?
- Yes — Leonard Gell's NPI (1023380797) is active in the NPPES registry as of the last update on 2012-01-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.