Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Philo Calhoun, MD

Surgery Physician in Bellingham, WA · enumerated 2006.

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

National Provider Identifier

1801874318

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Registry record

Entity type Individual (Type 1)

Name Dr. Philo Calhoun

Credential MD

Sex Male

Practice address 2409 Bushwick Ct, Bellingham, WA, 98229

Phone (541) 670-1880

Enumeration date Jan 4, 2006

Last updated in NPPES Jan 8, 2024

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License MD150181 (OR) Secondary

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License MD00031155 (WA) 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

What is the NPI number for Philo Calhoun?

The National Provider Identifier (NPI) for Philo Calhoun is 1801874318, a Type 1 (individual) record in the CMS NPPES registry.

Where does Philo Calhoun practice?

The practice location on file with NPPES is in Bellingham, WA. Providers can have multiple locations; NPPES lists the primary practice address.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-01-08.