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

John Michael Stein, M.D

Surgical Critical Care Physician in Scottsdale, AZ · enumerated 2006.

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

National Provider Identifier

1912914870

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Registry record

Entity type Individual (Type 1)
Name John Michael Stein
Credential M.D
Sex Male
Practice address Scottsdale, AZ, 85251
Phone (480) 970-1640
Fax (480) 970-1641
Enumeration date Aug 2, 2006
Last updated in NPPES Jul 22, 2017

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

Taxonomy & licenses

2086S0102X Surgical Critical Care Physician Allopathic & Osteopathic Physicians · License 11573 (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.

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Frequently asked questions

What is the NPI number for John Stein?
The National Provider Identifier (NPI) for John Stein is 1912914870, a Type 1 (individual) record in the CMS NPPES registry.
Where does John Stein practice?
The practice location on file with NPPES is in Scottsdale, AZ. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-07-22.