Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Paul Henry Castello, M.D.

Orthopaedic Surgery Physician in Santa Maria, CA · enumerated 2006.

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

National Provider Identifier

1669434510

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Paul Henry Castello

Credential M.D.

Sex Male

Practice address 2342 Professional Pkwy, Suite 200, Santa Maria, CA, 93455

Phone (805) 349-9545

Fax (805) 349-8025

Enumeration date Apr 5, 2006

Last updated in NPPES Apr 18, 2023

Taxonomy & licenses

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License G69783 (CA) Primary

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
00G697830	Medicaid	CA	-

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Paul Castello?

The National Provider Identifier (NPI) for Paul Castello is 1669434510, a Type 1 (individual) record in the CMS NPPES registry.

Where does Paul Castello practice?

The practice location on file with NPPES is in Santa Maria, 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 2023-04-18.