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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Sean P Tierney, M.D.

Clinical Cardiac Electrophysiology Physician in Merrionette Park, IL · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1457315624

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Registry record

Entity type Individual (Type 1)
Name Dr. Sean P Tierney
Credential M.D.
Sex Male
Practice address 11560 S Kedzie Ave Ste 100, Merrionette Park, IL, 60803
Phone (708) 824-1114
Fax (708) 824-9341
Enumeration date Apr 14, 2006
Last updated in NPPES Dec 15, 2021

Taxonomy & licenses

207RC0001X Clinical Cardiac Electrophysiology Physician Allopathic & Osteopathic Physicians · License 036096266 (IL) Primary
207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians · License 036096266 (IL) Secondary
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
01621208 Other IL BLUE CROSS BLUE SHIELD
416810 Other IL MEDICARE GROUP
P00110155 Other IL RAILROAD MEDICARE COOK
CD8033 Other IL RAILROAD MEDICARE GROUP PTAN NUMBER
1508810086 Other IL HEART CARE CENTERS OF ILLINOIS GROUP NPI
236550 Other IL MEDICARE GROUP
236551 Other IL MEDICARE GROUP
P00227172 Other IL RAILROAD MEDICARE WILL
036096266 Medicaid IL -
CN2703 Other IL RAILROAD MEDICARE GROUP PTAN NUMBER

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.

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Frequently asked questions

What is the NPI number for Sean Tierney?
The National Provider Identifier (NPI) for Sean Tierney is 1457315624, a Type 1 (individual) record in the CMS NPPES registry.
Where does Sean Tierney practice?
The practice location on file with NPPES is in Merrionette Park, IL. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-12-15.