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Ian J Bristol, M.D.

Radiation Oncology Physician in Portland, ME · enumerated 2007.

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

National Provider Identifier

1235357294

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Registry record

Entity type Individual (Type 1)
Name Ian J Bristol
Credential M.D.
Sex Male
Practice address 22 Bramhall St, Portland, ME, 04102
Phone (207) 662-2276
Enumeration date Apr 23, 2007
Last updated in NPPES Apr 21, 2026

Taxonomy & licenses

2085R0001X Radiation Oncology Physician Allopathic & Osteopathic Physicians · License MD17399 (ME) Primary
2085R0001X Radiation Oncology Physician Allopathic & Osteopathic Physicians · License 25134 (NH) Secondary
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

What is the NPI number for Ian Bristol?
The National Provider Identifier (NPI) for Ian Bristol is 1235357294, a Type 1 (individual) record in the CMS NPPES registry.
Where does Ian Bristol practice?
The practice location on file with NPPES is in Portland, ME. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-04-21.