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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Joshua Schuyler Mason, M.D.

Critical Care Medicine (Internal Medicine) Physician in Scottsdale, AZ · enumerated 2010.

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

National Provider Identifier

1245557784

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Registry record

Entity type Individual (Type 1)
Name Dr. Joshua Schuyler Mason
Credential M.D.
Sex Male
Practice address 9060 E Via Linda, Scottsdale, AZ, 85258
Fax (480) 614-1751
Enumeration date Apr 23, 2010
Last updated in NPPES Dec 30, 2025

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 57480 (AZ) Secondary
207RP1001X Pulmonary Disease Physician Allopathic & Osteopathic Physicians · License 036.133085 (IL) Secondary
207RC0200X Critical Care Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License 57480 (AZ) Primary
207RP1001X Pulmonary Disease Physician Allopathic & Osteopathic Physicians · License 57480 (AZ) Secondary
207RC0200X Critical Care Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License 036.133085 (IL) Secondary
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

How do I verify Joshua Mason's NPI record?
Cross-check NPI 1245557784 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1245557784 active?
Yes, as of the latest NPPES snapshot, NPI 1245557784 is active (record last updated 2025-12-30).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-12-30.