Leonard White, MD
NPI 1821088550 · Hematology & Oncology Physician · Saint Louis, MO
Leonard White, MD is a Hematology & Oncology Physician provider in Saint Louis, MO (NPI 1821088550).
Provider details
- NPI number
- 1821088550
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 34617 (MO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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
- 2005-10-25
- Last updated
- 2007-12-11
Frequently asked questions
- What is Leonard White's NPI number?
- Leonard White's National Provider Identifier (NPI) is 1821088550, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Leonard White's specialty?
- Leonard White is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Leonard White located?
- Leonard White's practice location on file with NPPES is 12855 N 40 Dr, Saint Louis, MO 63141-8635.
- What is Leonard White's phone number?
- The practice phone number listed in the NPPES registry for Leonard White is (314) 628-1210.
- Is Leonard White's NPI active?
- Yes — Leonard White's NPI (1821088550) is active in the NPPES registry as of the last update on 2007-12-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.