Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Philo F Willetts Jr., MD

Orthopaedic Surgery Physician in Westerly, RI · enumerated 2006.

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

National Provider Identifier

1538229018

Verified

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Registry record

Entity type Individual (Type 1)

Name Philo F Willetts Jr.

Credential MD

Sex Male

Practice address Westerly, RI, 02891

Phone (401) 596-7762

Fax (401) 596-6165

Enumeration date Dec 12, 2006

Last updated in NPPES May 1, 2013

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License MD05339 (RI) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD 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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Philo Willetts?

The National Provider Identifier (NPI) for Philo Willetts is 1538229018, a Type 1 (individual) record in the CMS NPPES registry.

Where does Philo Willetts practice?

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

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-05-01.