DR. EMILY MATHIAK OD
NPI 1790047819
Optometrist in Crow Agency, MT
About Dr. Emily Mathiak Od NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. EMILY MATHIAK OD (NPI 1790047819) is an individual optometrist in Crow Agency, Montana, licensed in Michigan (4901004704) and active in the NPI registry since June 2012. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Emily Mathiak Od is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Emily Mathiak reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Crow Agency, MT 59022
- Reassigned Medicare billing, Texas enrollment
- Medicare enrollment name: U S Health Dept Of Health & Human Services
- 306 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 2
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 59022 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
CROW AGENCY, MT 59022
CROW AGENCY, MT 59022
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 Emily Mathiak's NPI number?
The NPI number for Emily Mathiak is 1790047819. It was assigned to this individual provider in the NPPES registry on June 14, 2012.
Where is Emily Mathiak located?
Emily Mathiak practices at 10110 South 7650 East, Crow Agency, MT 59022. The listed phone number is (406) 638-3465.
What is Emily Mathiak's specialty?
The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.
Is Emily Mathiak enrolled in Medicare?
Yes. Emily Mathiak is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Emily Mathiak's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Emily Mathiak reassigns Medicare benefits to Us Health Dept Of Health & Human Services (Crow Agency, MT). The 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 Emily Mathiak's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Emily Mathiak was last updated on December 4, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 years 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.
# Dr. Emily Mathiak, OD · NPI 1790047819
Optometrist provider in Crow Agency, Montana. Individual provider, active in the CMS NPPES registry since June 14, 2012.
## Identity
- **NPI:** 1790047819 (Entity type: Individual)
- **Enumerated:** June 14, 2012
- **Primary specialty:** Optometrist · taxonomy 152W00000X
- **State license:** 4901004704 (Michigan)
- **Sole proprietor:** No
## Practice location
- **Address:** 10110 SOUTH 7650 EAST, Crow Agency, MT 59022
- **Phone:** (406) 638-3465
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health
- **Bills Medicare through:** Us Health Dept Of Health & Human Services (NPI 1548393358, Crow Agency, MT), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** December 4, 2015
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Source: [NPI Profile](https://npiprofile.com/npi/1790047819) · Data from the CMS NPPES public registry.