NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Craig M Stein, M.D.

Gastroenterology Physician in Mesa, AZ · enumerated 2005.

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

National Provider Identifier

1861487456

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Craig M Stein
Credential M.D.
Sex Male
Practice address 6020 E Arbor Ave, Suite 101, Mesa, AZ, 85206
Fax (480) 396-3659
Enumeration date Sep 20, 2005
Last updated in NPPES Feb 17, 2017

Taxonomy & licenses

207RG0100X Gastroenterology Physician Allopathic & Osteopathic Physicians · License 23866 (AZ) 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 Craig Stein?
The National Provider Identifier (NPI) for Craig Stein is 1861487456, a Type 1 (individual) record in the CMS NPPES registry.
Where does Craig Stein practice?
The practice location on file with NPPES is in Mesa, AZ. 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 2017-02-17.