Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. John Mario Lettieri III, RPH

Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist in Milford, PA · enumerated 2011.

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

National Provider Identifier

1639465438

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Registry record

Entity type Individual (Type 1)

Name Mr. John Mario Lettieri III

Credential RPH

Sex Male

Practice address 100 West Harford, Milford, PA, 18337

Phone (570) 296-6014

Fax (570) 409-1055

Enumeration date Jun 21, 2011

Last updated in NPPES Jun 21, 2011

Taxonomy & licenses

1835P0018X Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist Pharmacy Service Providers · License RP036382T (PA) Primary

RPH · Registered Pharmacist: A licensed pharmacist registered with a state board of pharmacy. About the RPH 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 John Lettieri III?

The National Provider Identifier (NPI) for John Lettieri III is 1639465438, a Type 1 (individual) record in the CMS NPPES registry.

Where does John Lettieri III practice?

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

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-06-21.