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Charles Leo Callaghan, MD

Internal Medicine Physician in Saint Paul, MN · enumerated 2006 · practices at Metropolitan Obstetrics & Gynecology.

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

National Provider Identifier

1649369489

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Registry record

Entity type Individual (Type 1)
Name Charles Leo Callaghan
Credential MD
Sex Male
Practice address 17 W Exchange St, Suite 420, Saint Paul, MN, 55102
Phone (651) 232-4125
Fax (651) 232-4127
Enumeration date Oct 12, 2006
Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 37316 (MN) 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

Where does Charles Callaghan practice?
The practice location on file with NPPES is in Saint Paul, MN. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Charles Callaghan?
The National Provider Identifier (NPI) for Charles Callaghan is 1649369489, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.