NPI Portal NPI Lookup & Verification

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

Dr. Ian Christopher Mcdonald, DDS

Dentist in Billings, MT · enumerated 2007 · practices at Benchmark Dental PC.

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

National Provider Identifier

1528262896

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Registry record

Entity type Individual (Type 1)
Name Dr. Ian Christopher Mcdonald
Credential DDS
Sex Male
Practice address Billings, MT, 59101
Phone (406) 256-2121
Fax (406) 294-2120
Enumeration date Jun 12, 2007
Last updated in NPPES Oct 25, 2024

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

Taxonomy & licenses

332B00000X Durable Medical Equipment & Medical Supplies Suppliers · License 2251 (MT) Secondary
122300000X Dentist Dental Providers · License 2251 (MT) Primary
1223G0001X General Practice Dentistry Dental Providers · License 2251 (MT) Secondary
DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS 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

What specialty is Ian Mcdonald?
Ian Mcdonald is registered in NPPES with the primary taxonomy of Dentist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-10-25.