Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mary Beth Leonard, M.D.
Surgery Physician in Berwyn, IL · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1063402048
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Registry record
Entity type Individual (Type 1)
Name Mary Beth Leonard
Credential M.D.
Sex Female
Practice address 3245 Grove Ave, Berwyn, IL, 60402
Phone (708) 484-0621
Fax (708) 484-0250
Enumeration date Oct 21, 2005
Last updated in NPPES Mar 9, 2011
Taxonomy & licenses
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 01619787 | Other | - | BCBSIL GROUP NUMBER |
| 036079983 | Medicaid | IL | - |
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
What is the NPI number for Mary Leonard?
The National Provider Identifier (NPI) for Mary Leonard is 1063402048, a Type 1 (individual) record in the CMS NPPES registry.
Where does Mary Leonard practice?
The practice location on file with NPPES is in Berwyn, IL. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Mercado Foot and Ankle Clinics South Podiatrist · Berwyn, IL NPI 1790783736 Jeffrey Zawacki Surgery Physician · Berwyn, IL NPI 1790774750 Monica Umlauf Clinical Social Worker · Berwyn, IL NPI 1144201443 David Vanthiel Gastroenterology Physician · Berwyn, IL NPI 1447367479 Sharad Khandelwal Pulmonary Disease Physician · Berwyn, IL NPI 1124130240 Mark Choh Surgery Physician · Berwyn, IL NPI 1023283611 Robin Favor Surgery Physician · Berwyn, IL NPI 1912153909 S & S Diagnostic Services, Inc Physiological Laboratory · Berwyn, IL NPI 1770883779
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-03-09.