NPI Portal NPI Lookup & Verification

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

Dr. Joshua Chaman Leighton, M.D.

Diagnostic Radiology Physician in Cranston, RI · enumerated 2007.

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

National Provider Identifier

1134301922

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Joshua Chaman Leighton
Credential M.D.
Sex Male
Practice address Cranston, RI, 02920
Phone (401) 886-4830
Fax (888) 779-7670
Enumeration date Dec 4, 2007
Last updated in NPPES Jan 25, 2014

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

Taxonomy & licenses

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License MD14401 (RI) 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
JL94600 Medicaid RI -

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

How do I verify Joshua Leighton's NPI record?
Cross-check NPI 1134301922 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1134301922 active?
Yes, as of the latest NPPES snapshot, NPI 1134301922 is active (record last updated 2014-01-25).

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-01-25.