MARIAH LYNN MACK MD
NPI 1992447692
Internal Medicine in La Crosse, WI
About Mariah Lynn Mack Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARIAH LYNN MACK MD (NPI 1992447692) is an individual internal medicine provider in La Crosse, Wisconsin, licensed in Wisconsin (82534) and active in the NPI registry since April 2022. She is enrolled in Medicare PECOS, is affiliated with Gundersen Lutheran Medical Center, and is a graduate of University Of North Dakota School Of Medicine (2022).
NPPES Registry Identity
Specialties & Licenses 2
Other Names 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Mariah Lynn Mack Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Mariah Mack reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
La Crosse, WI 54601
- Reassigned Medicare billing, Wisconsin enrollment
- 1,457 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Gundersen Lutheran Medical Center
Acute Care Hospitals · La Crosse, WIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 54601 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.
LA CROSSE, WI 54601
LA CROSSE, WI 54601
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 Mariah Mack's NPI number?
The NPI number for Mariah Mack is 1992447692. It was assigned to this individual provider in the NPPES registry on April 12, 2022. The provider is also known as Mariah Lynn Jorda.
Where is Mariah Mack located?
Mariah Mack practices at 1836 South Ave, La Crosse, WI 54601. The listed phone number is (608) 782-7300.
What is Mariah Mack's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Mariah Mack enrolled in Medicare?
Yes. Mariah Mack is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Mariah Mack's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mariah Mack reassigns Medicare benefits to Gundersen Lutheran Medical Center, Inc (La Crosse, WI). 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 Mariah Mack's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mariah Mack accept?
Health plans from Anthem Blue Cross and Blue Shield and Quartz list Mariah Mack 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.
Is Mariah Mack affiliated with any hospitals?
According to CMS data, Mariah Mack is affiliated with Gundersen Lutheran Medical Center.
When was this NPI record last updated?
The NPPES record for Mariah Mack was last updated on October 4, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Mariah Lynn Mack, MD · NPI 1992447692
Internal Medicine physician in La Crosse, Wisconsin. Individual provider, active in the CMS NPPES registry since April 12, 2022.
## Identity
- **NPI:** 1992447692 (Entity type: Individual)
- **Enumerated:** April 12, 2022
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 82534 (Wisconsin)
- **Sole proprietor:** No
## Practice location
- **Address:** 1836 SOUTH AVE, La Crosse, WI 54601-5429
- **Phone:** (608) 782-7300
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Gundersen Lutheran Medical Center, Inc (NPI 1619210895, La Crosse, WI), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of North Dakota School Of Medicine, class of 2022
## Record status
- **NPPES last updated:** October 4, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1992447692) · Data from the CMS NPPES public registry.