Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Sean J O'Donnell, MD

Orthopaedic Hand Surgery Physician in Middletown, CT · enumerated 2006.

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

National Provider Identifier

1457447153

Verified

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Registry record

Entity type Individual (Type 1)

Name Sean J O'Donnell

Credential MD

Sex Male

Practice address 410 Saybrook Rd, Middletown, Middletown, CT, 06457

Phone (860) 685-8940

Enumeration date Oct 4, 2006

Last updated in NPPES Sep 8, 2008

Taxonomy & licenses

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 034830 (CT) Secondary

207XS0106X Orthopaedic Hand Surgery Physician Allopathic & Osteopathic Physicians · License 034830 (CT) Primary

207XS0114X Adult Reconstructive Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 034830 (CT) Secondary

207XS0117X Orthopaedic Surgery of the Spine Physician Allopathic & Osteopathic Physicians · License 034830 (CT) Secondary

207XX0004X Orthopaedic Foot and Ankle Surgery Physician Allopathic & Osteopathic Physicians · License 034830 (CT) Secondary

207XX0005X Sports Medicine (Orthopaedic Surgery) Physician Allopathic & Osteopathic Physicians · License 034830 (CT) Secondary

207XX0801X Orthopaedic Trauma Physician Allopathic & Osteopathic Physicians · License 034830 (CT) 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
001348300	Medicaid	CT	-

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

Where does Sean O'Donnell practice?

The practice location on file with NPPES is in Middletown, CT. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Sean O'Donnell?

The National Provider Identifier (NPI) for Sean O'Donnell is 1457447153, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-09-08.