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Dr. Carl Franklin Irwin Sr., M.D.

Pediatrics Physician in Phoenix, AZ · enumerated 2006 · practices at Northwest Cloinic for Children.

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

National Provider Identifier

1225092273

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Registry record

Entity type Individual (Type 1)
Name Dr. Carl Franklin Irwin Sr.
Credential M.D.
Sex Male
Practice address 15420 N 32nd Dr, Phoenix, AZ, 85053
Phone (602) 866-1974
Fax (602) 375-3949
Enumeration date Apr 14, 2006
Last updated in NPPES Sep 23, 2008

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 7976 (AZ) 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
227191 Medicaid AZ -

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

Where does Carl Irwin practice?
The practice location on file with NPPES is in Phoenix, AZ. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Carl Irwin?
The National Provider Identifier (NPI) for Carl Irwin is 1225092273, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-09-23.