What is John Leonard's NPI number?

John Leonard's National Provider Identifier (NPI) is 1376697169, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is John Leonard's specialty?

John Leonard is listed in the NPPES registry with a primary specialty of Clinical Medical Laboratory (Laboratories).

Where is John Leonard located?

John Leonard's practice location on file with NPPES is 840 N Lake Shore Dr, Chicago, IL 60611-2489.

What is John Leonard's phone number?

The practice phone number listed in the NPPES registry for John Leonard is (312) 640-6030.

Is John Leonard's NPI active?

Yes — John Leonard's NPI (1376697169) is active in the NPPES registry as of the last update on 2023-03-07.

IndividualActive

John Leonard, M.D.

NPI 1376697169 · Clinical Medical Laboratory · Chicago, IL

John Leonard, M.D. is a Clinical Medical Laboratory provider in Chicago, IL (NPI 1376697169).

Provider details

NPI number: 1376697169
Entity type: Individual
Primary specialty: Clinical Medical LaboratoryLaboratories
Credential: M.D.
Sex: Male
Sole proprietor: Yes
License: D0034529 (MD)

Specialties & taxonomies

Clinical Medical LaboratoryPrimary291U00000XLicense D0034529 (MD)
Laboratories

Profile Score

Detailed profile(90/100 index)

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

840 N Lake Shore Dr

# 2201

Chicago, IL 60611-2489

Phone: (312) 640-6030

Fax: (847) 937-3918

Street-level locationGet directions

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Mailing address