Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Christopher Johnstad, M.D.

Anesthesiology Physician in Tempe, AZ · enumerated 2005.

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

National Provider Identifier

1609872316

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Registry record

Entity type Individual (Type 1)

Name Dr. Christopher Johnstad

Credential M.D.

Sex Male

Practice address 2421 E Southern Ave Ste 7, Tempe, AZ, 85282

Phone (480) 425-2160

Fax (480) 351-8797

Enumeration date Jun 27, 2005

Last updated in NPPES May 12, 2023

Taxonomy & licenses

207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians · License 25296 (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

How do I verify Christopher Johnstad's NPI record?

Cross-check NPI 1609872316 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1609872316 active?

Yes, as of the latest NPPES snapshot, NPI 1609872316 is active (record last updated 2023-05-12).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-05-12.