DR. MASON GORDON FISHER M.D.
NPI 1245452549
Surgery - Surgical Critical Care in La Crosse, WI
About Dr. Mason Gordon Fisher M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MASON GORDON FISHER M.D. (NPI 1245452549) is an individual surgical critical care provider in La Crosse, Wisconsin, licensed in Wisconsin (55044) and active in the NPI registry since May 2007. He is enrolled in Medicare PECOS, is affiliated with Gundersen Lutheran Medical Center, and is a graduate of Ohio State University College Of Medicine (2003).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 1
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 and accepts Medicare assignment
Dr. Mason Gordon Fisher M.d. 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.
Areas of Expertise CMS Part B claims 3
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.
Hospital Affiliations CMS Care Compare 3
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, WIBlack River Memorial Hospital
Critical Access Hospitals · Black River Falls, WIVernon Memorial Hospital
Critical Access Hospitals · Viroqua, WIOther 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 Mason Fisher's NPI number?
The NPI number for Mason Fisher is 1245452549. It was assigned to this individual provider in the NPPES registry on May 3, 2007.
Where is Mason Fisher located?
Mason Fisher practices at 1836 South Ave, La Crosse, WI 54601. The listed phone number is (608) 782-7300.
What is Mason Fisher's specialty?
The primary specialty registered for this NPI is Surgery, specializing in Surgical Critical Care, with taxonomy code 2086S0102X.
Is Mason Fisher enrolled in Medicare?
Yes. Mason Fisher 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.
What insurance does Mason Fisher accept?
Health plans from Anthem Blue Cross and Blue Shield, Aspirus Health Plan, HealthPartners, Medica and Quartz list Mason Fisher 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 Mason Fisher affiliated with any hospitals?
According to CMS data, Mason Fisher is affiliated with Gundersen Lutheran Medical Center, Black River Memorial Hospital and Vernon Memorial Hospital.
When was this NPI record last updated?
The NPPES record for Mason Fisher was last updated on March 26, 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.
