BROCK ALONZO M.D.
NPI 1144649138
Ophthalmology - Glaucoma Specialist in Hamilton, MT

Active since April 07, 2014PECOS Enrolled
300 N 10TH ST STE A, HAMILTON, MT 59840(406) 363-5434(406) 363-5210 Get Directions Write a Review

NPPES record last updated: September 11, 2025. Verified against the NPPES registry weekly; last sync: July 19, 2026.

Record update history: Sep 11, 2025, Feb 22, 2022, Sep 24, 2020 and 2 more (5 updates tracked since 2018).

About Brock Alonzo M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

BROCK ALONZO M.D. (NPI 1144649138) is an individual glaucoma specialist in Hamilton, Montana, licensed in Montana (77900) and active in the NPI registry since April 2014. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1144649138
Entity TypeIndividualMale
Primary Taxonomy207WX0009X
Provider Legal NameBROCK ALONZOCredential: M.D.
Location Address300 N 10TH ST STE AHamilton, MT 59840-5322
Mailing Address300 N 10th St Ste AHamilton, MT 59840-5322 · (406) 363-5434 · Fax (406) 363-5210
Fax(406) 363-5210
Sole ProprietorNo
Enumeration DateApril 7, 2014
Last NPPES UpdateSeptember 11, 20255 updates tracked since enumeration
NPPES CertifiedFebruary 22, 2022
NPI 1144649138 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyOphthalmology · Glaucoma SpecialistAllopathic & Osteopathic Physicians
Taxonomy Code207WX0009X
License Licensed in MT · 77900
Definition

An ophthalmologist who specializes in the treatment of glaucoma and other disorders related to increased intraocular pressure and optic nerve damage. This specialty involves the medical and surgical treatment of these conditions.

300 N 10TH ST STE A, Hamilton, MT 59840

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare (PECOS)

Brock Alonzo M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 59840 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$130.52 typical visit price
range $56.81 – $172.26
Typical copayment $32.63 (range $14.20 – $43.06)
Most-billed visit code 99204
Established Patient
$70.82 typical visit price
range $18.24 – $140.32
Typical copayment $17.70 (range $4.56 – $35.08)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Ophthalmology
300 N 10TH ST STE A
HAMILTON, MT 59840

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1144649138, enumerated as an "individual" on April 07, 2014.

The provider is located at 300 N 10TH ST STE A HAMILTON, MT 59840 and the phone number is (406) 363-5434.

Ophthalmology with taxonomy code 207WX0009X and a focus in Glaucoma Specialist.

The provider might be accepting Accepts: Blue Cross and Blue Shield of Montana, Mountain. Please consult your insurance carrier or call the provider to verify.