Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Sean Matthew Maiorano, D.O.
Hospitalist Physician in Chico, CA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1487693552
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Registry record
Entity type Individual (Type 1)
Name Sean Matthew Maiorano
Credential D.O.
Sex Male
Practice address 1423 Magnolia Ave, Chico, CA, 95926
Phone (530) 896-7455
Fax (530) 896-1730
Enumeration date Jun 5, 2006
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD.
About the DO credential
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 Sean Maiorano?
The National Provider Identifier (NPI) for Sean Maiorano is 1487693552, a Type 1 (individual) record in the CMS NPPES registry.
Where does Sean Maiorano practice?
The practice location on file with NPPES is in Chico, CA. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.