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Brock Alonzo, M.D.

Glaucoma Specialist (Ophthalmology) Physician in Hamilton, MT · enumerated 2014.

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

National Provider Identifier

1144649138

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Registry record

Entity type Individual (Type 1)
Name Brock Alonzo
Credential M.D.
Sex Male
Practice address 300 N 10th St Ste A, Hamilton, MT, 59840
Phone (406) 363-5434
Fax (406) 363-5210
Enumeration date Apr 7, 2014
Last updated in NPPES Sep 11, 2025

Taxonomy & licenses

207WX0009X Glaucoma Specialist (Ophthalmology) Physician Allopathic & Osteopathic Physicians · License 77900 (MT) 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

What is the NPI number for Brock Alonzo?
The National Provider Identifier (NPI) for Brock Alonzo is 1144649138, a Type 1 (individual) record in the CMS NPPES registry.
Where does Brock Alonzo practice?
The practice location on file with NPPES is in Hamilton, MT. 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 2025-09-11.