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DR. JOHN P LEONARD D.M.D
NPI 1447444641
Dentist in Chicago, IL

Active since August 30, 2007
326 S MARSHFIELD AVE, CHICAGO, IL 60612(312) 942-0200(312) 666-4640 Get Directions Write a Review

NPPES record last updated: August 30, 2007. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. John P Leonard D.m.d NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. JOHN P LEONARD D.M.D (NPI 1447444641) is an individual dentist in Chicago, Illinois and active in the NPI registry since August 2007.

NPPES Registry Identity

NPI1447444641
Entity TypeIndividualMale
Primary Taxonomy122300000X
Provider Legal NameDR. JOHN P LEONARDCredential: D.M.D
Location Address326 S MARSHFIELD AVEChicago, IL 60612-3212
Mailing Address326 S Marshfield AveChicago, IL 60612-3212 · (312) 942-0200 · Fax (312) 666-4640
Phone(312) 942-0200
Fax(312) 666-4640
Sole ProprietorNo
Enumeration DateAugust 30, 2007
✔ NPI 1447444641 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDentistDental Providers
Taxonomy Code122300000X
Definition
A dentist is a person qualified by a doctorate in dental surgery (D.D.S.) or dental medicine (D.M.D.), licensed by the state to practice dentistry, and practicing within the scope of that license. There is no difference between the two degrees: dentists who have a DMD or DDS have the same education. Universities have the prerogative to determine what degree is awarded. Both degrees use the same curriculum requirements set by the American Dental Association's Commission on Dental Accreditation. Generally, three or more years of undergraduate education plus four years of dental school is required to graduate and become a general dentist. State licensing boards accept either degree as equivalent, and both degrees allow licensed individuals to practice the same scope of general dentistry. Additional post-graduate training is required to become a dental specialist.
326 S MARSHFIELD AVE, Chicago, IL 60612
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Home State Health, Ambetter Health, Ambetter Health of Delaware and more.Insurance ›

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. DANIEL CHRISTOPHER LEONARD D.D.S.
Dentist (General Practice)
326 S MARSHFIELD AVE
CHICAGO, IL 60612
Cook County (312) 942-0200

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is John Leonard's NPI number?

The NPI number for John Leonard is 1447444641. It was assigned to this individual provider in the NPPES registry on August 30, 2007.

Where is John Leonard located?

John Leonard practices at 326 S Marshfield Ave, Chicago, IL 60612. The listed phone number is (312) 942-0200.

What is John Leonard's specialty?

The primary specialty registered for this NPI is Dentist with taxonomy code 122300000X.

What insurance does John Leonard accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Home State Health, Anthem Blue Cross and Blue Shield and BEST Life and 9 other insurers list John Leonard as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for John Leonard was last updated on August 30, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.