DR. MATTHEW BIWER OD
NPI 1619129111
Optometrist in Sidney, MT

Q: What is Matthew Biwer's NPI number?

The NPI number for Matthew Biwer is 1619129111. It was assigned to this individual provider in the NPPES registry on October 15, 2008.

Q: What is Matthew Biwer's specialty?

The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.

Q: When was this NPI record last updated?

The NPPES record for Matthew Biwer was last updated on June 18, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since October 15, 2008PECOS Enrolled

124 S CENTRAL AVE, SIDNEY, MT 59270(406) 482-2609(406) 482-2697 Get Directions Write a Review

NPPES record last updated: June 18, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

On this page

About Dr. Matthew Biwer Od NPPES

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

DR. MATTHEW BIWER OD (NPI 1619129111) is an individual optometrist in Sidney, Montana, licensed in California (35801) and active in the NPI registry since October 2008. He is enrolled in Medicare PECOS and is a graduate of Pacific University - College Of Optometry (2008).

NPPES Registry Identity

NPI1619129111

Entity TypeIndividualMale

Primary Taxonomy152W00000X

Provider Legal NameDR. MATTHEW BIWERCredential: OD

Location Address124 S CENTRAL AVESidney, MT 59270-4124

Mailing Address124 S Central AveSidney, MT 59270-4124 · (406) 482-2609 · Fax (406) 482-2697

Phone(406) 482-2609

Fax(406) 482-2697

Sole ProprietorNo

Medical School CMSPacific University - College Of OptometryGraduated 2008

Enumeration DateOctober 15, 2008

Last NPPES UpdateJune 18, 2026

NPPES CertifiedJune 18, 2026

✔ NPI 1619129111 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOptometristEye and Vision Services Providers

Taxonomy Code152W00000X

Licenses✔ Licensed in CA · 35801✔ Licensed in VI · 53✔ Licensed in MT · 5670

Definition

Doctors of optometry (ODs) are the primary health care professionals for the eye. Optometrists examine, diagnose, treat, and manage diseases, injuries, and disorders of the visual system, the eye, and associated structures as well as identify related systemic conditions affecting the eye. An optometrist has completed pre-professional undergraduate education in a college or university and four years of professional education at a college of optometry, leading to the doctor of optometry (O.D.) degree. Some optometrists complete an optional residency in a specific area of practice. Optometrists are eye health care professionals state-licensed to diagnose and treat diseases and disorders of the eye and visual system.

124 S CENTRAL AVE, Sidney, MT 59270

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Matthew Biwer Od is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID9638230782

PECOS Enrollment IDI20250423001875, I20260607000101

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.

Medicare Billing Reassignments

Medicare enrollment records show Matthew Biwer reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Sidney Eye Care PLLC

0.1 mi

Optometrist

112 2ND ST SE
Sidney, MT 59270

Reassigned Medicare billing, Montana enrollment
3 clinicians in this Medicare group

NPI 1750638219 (406) 482-2609

Good Eye Inc

1,200 mi

Optometrist

11718 BARRINGTON CT
Los Angeles, CA 90049

Reassigned Medicare billing, California enrollment
4 clinicians in this Medicare group

NPI 1467639047 (310) 440-9500

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 59270 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.

DR. KRISTIN L O'BRIEN O.D.

Optometrist

124 S CENTRAL AVE
SIDNEY, MT 59270

Richland County (406) 482-2609

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Matthew Biwer's NPI number?

The NPI number for Matthew Biwer is 1619129111. It was assigned to this individual provider in the NPPES registry on October 15, 2008.

Where is Matthew Biwer located?

Matthew Biwer practices at 124 S Central Ave, Sidney, MT 59270. The listed phone number is (406) 482-2609.

What is Matthew Biwer's specialty?

The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.

Is Matthew Biwer enrolled in Medicare?

Yes. Matthew Biwer is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Matthew Biwer's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Matthew Biwer reassigns Medicare benefits to 2 organizations: Sidney Eye Care PLLC (Sidney, MT) and Good Eye Inc (Los Angeles, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Matthew Biwer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Matthew Biwer accept?

Health plans from Anthem Blue Cross and Blue Shield, Blue Cross Blue Shield of North Dakota, Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma and Blue Cross and Blue Shield of Texas list Matthew Biwer as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Matthew Biwer was last updated on June 18, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.