NPI Portal NPI Lookup & Verification

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

Dr. John Thomas Callahan, D.P.M.

Podiatrist in Salem, OR · enumerated 2005.

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

National Provider Identifier

1861496804

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Registry record

Entity type Individual (Type 1)
Name Dr. John Thomas Callahan
Credential D.P.M.
Sex Male
Practice address Salem, OR, 97302
Phone (503) 581-2505
Fax (503) 581-2515
Enumeration date Jun 8, 2005
Last updated in NPPES Jul 8, 2007

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

Taxonomy & licenses

213E00000X Podiatrist Podiatric Medicine & Surgery Service Providers · License DP00297 (OR) Primary
DPM · Doctor of Podiatric Medicine: A physician specializing in medical and surgical care of the foot and ankle. About the DPM credential

Other identifiers

Identifier Type State Issuer
138101 Medicaid OR -
067947000 Other OR BCBS
5156300001 Other OR CIGRA DMERC

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 Callahan?
The National Provider Identifier (NPI) for John Callahan is 1861496804, a Type 1 (individual) record in the CMS NPPES registry.
Where does John Callahan practice?
The practice location on file with NPPES is in Salem, OR. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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