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Dr. Mason Gordon Fisher, MD
NPI1245452549PAC ID1658559265
- Medicare services, 2024
- 49
- Medicare patients, 2024
- 76
- Part D claims, 2024
- 14
- Publications
- 3
- Hospital affiliations
- 2
- Practice address
- 1910 South Ave, Heritage Building 2 West, La Crosse, WI 54601
- Practice phone
- Call (608) 775-3176
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Gundersen Lutheran Medical Center - Dialysis
Dialysis Center - Hospital-Based · La Crosse, Wisconsin
Find Dr. Fisher's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Mason Gordon Fisher is a general surgeon in La Crosse, Wisconsin
Dr. Fisher practices at Gundersen Lutheran Medical Center - Dialysis in La Crosse, Wisconsin.
Dr. Fisher's NPI, 1245452549, was assigned on May 3, 2007. Dr. Fisher graduated from Ohio State University College of Medicine in 2003. Dr. Fisher holds Wisconsin license 55044.
NPI and contact details
- NPI
- 1245452549NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1658559265
- NPI enumeration date
- May 3, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (608) 775-3176
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 49
- Medical school graduation
- 2003
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mason Gordon Fisher practices at Gundersen Lutheran Medical Center - Dialysis in La Crosse, Wisconsin
Dr. Fisher's primary practice is Gundersen Lutheran Medical Center - Dialysis, at 1910 South Ave, Heritage Building 2 West, La Crosse, WI 54601 in La Crosse County. The practice phone is (608) 775-3176.
- Gundersen Lutheran Medical Center - Dialysis1910 South Ave, Heritage Building 2 West, La Crosse, WI 54601 · La Crosse CountyPhone(608) 775-3176
Source: Dmand AI Affiliation Data
Dr. Mason Gordon Fisher is affiliated with 4 sites of care and 2 medical groups
Dr. Fisher's primary practice is Gundersen Lutheran Medical Center - Dialysis in La Crosse, Wisconsin. Dr. Fisher is also affiliated with Gundersen Lutheran Medical Center. The medical group on file is Gundersen Lutheran Medical Center. Dmand AI also links Dr. Fisher to 1 more hospital, 1 group practice or clinic and 1 medical group, each named with a free account. Dr. Fisher's employer is on file too: a dialysis center.
Gundersen Lutheran Medical Center - DialysisPrimary
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Mason Gordon Fisher's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Fisher practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Gundersen Lutheran Medical Center - Dialysis | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mason Gordon Fisher is one of 565 general surgeons in Wisconsin
Surgery is Dr. Fisher's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dmand AI has Dr. Fisher's licenses on file in 2 states: Wisconsin and Ohio.
Specialties and state licenses
- Surgery, WisconsinPrimary
- Ohio license
General surgeons near Dr. Fisher
Counts of general surgeons with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Mason Gordon Fisher billed Medicare for 49 services in 2024
CMS data shows 49 Medicare services from Dr. Fisher across 3 procedure codes in 2024, for 76 Medicare patients. Medicare paid $3,300 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 202449
Medicare patients76
Paid by Medicare$3,300
Procedure codes3
Dr. Fisher's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 512024: 494%
Dr. Fisher compared with the Wisconsin median for general surgeons, 2024
- Dr. Fisher
- Wisconsin median
- Medicare services
- 49vs 9951% below
- Medicare patients
- 76vs 10024% below
- Part D claims
- 25vs 3732% below
Medians across 557 general surgeons in Wisconsin with Dmand AI profiles that report each measure.
Dr. Fisher's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Fisher?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Fisher and other general surgeons in Wisconsin.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mason Gordon Fisher treated 76 Medicare patients in 2024, average age 73
CMS counts 76 Medicare patients who saw Dr. Fisher in 2024. The largest group is 65 to 74, with 37 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 22% are also on Medicaid. Their average risk score is 1.56, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Fisher's median patient age at 59, with 38% women.
Medicare patients, 202476
Average age73
Average risk score1.56
Also on Medicaid22%
Dr. Fisher's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Fisher's Medicare patients by sex, 2024
- Women3343%
- Men4357%
Chronic conditions among Dr. Fisher's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis49%
- Chronic kidney disease42%
- Atrial fibrillation33%
- COPD33%
- Anxiety30%
- Depression30%
Share of Medicare patients with each condition. A patient can have several.
Dr. Fisher's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 59
Patient panel by sex, all payers
- Women38%
- Men62%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Mason Gordon Fisher wrote 14 Medicare Part D claims in 2024
In 2024, Dr. Fisher wrote 14 Medicare Part D claims. 86% of them were for generic drugs. They cover 1 drug, with $5,631 in total drug cost.
Part D claims, 202414
Drugs named by CMS1
Total drug cost$5,631
Dr. Fisher's Part D claims by kind of drug, 2024
- Generic12 claims86%
- Brand-name and other2 claims14%
Dr. Fisher's most prescribed drugs by claims, 2019
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Mason Gordon Fisher takes part in Medicare
Dr. Fisher accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Colonoscopy: 1 to 10 procedures (CMS shows small counts as a range)
Removal of tissue: 1 to 10 procedures (CMS shows small counts as a range)
Upper gastrointestinal (GI) endoscopy for acid reflux: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Mason Gordon Fisher has 3 publications on record
Dmand AI links 3 papers to Dr. Fisher in 2024. Dr. Fisher's most frequent co-authors are Ezana M. Azene, MD, PhD, Samuel Thomas Klinker and Benjamin M. Parsons, DO.
Papers3
Dr. Fisher's most frequent co-authors
- Ezana M. Azene, MD, PhD1 shared paper
- Samuel Thomas Klinker1 shared paper
- Benjamin M. Parsons, DO1 shared paper
Recent publications by Dr. Fisher
J Trauma Nurs
AlcoholismMass ScreeningMotivational Interviewing
ComorbidityDevice RemovalPatient Care Planning
See who Dr. Fisher researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Fisher works with, so you can find a warm path to the right general surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Mason Gordon Fisher received $89 in industry payments in 2022
CMS Open Payments shows 1 general payment to Dr. Fisher from 1 drug or device company in 2022. Food and beverage make up the largest share, 100% of the total. Medtronic, Inc. paid the most, $89.
Companies that paid Dr. Fisher the most, 2022 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Mason Gordon Fisher graduated from Ohio State University College of Medicine
Dr. Fisher graduated from Ohio State University College of Medicine in 2003.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Mason Gordon Fisher's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Mason Gordon Fisher
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Mason Gordon Fisher's NPI number?
Dr. Mason Gordon Fisher's NPI number is 1245452549. It was assigned on May 3, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Mason Gordon Fisher?
Dr. Mason Gordon Fisher is a general surgeon in La Crosse, Wisconsin. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Mason Gordon Fisher practice?
Dr. Fisher practices at 1910 South Ave, Heritage Building 2 West, La Crosse, WI 54601. Dr. Fisher's primary practice is Gundersen Lutheran Medical Center - Dialysis in La Crosse, Wisconsin. Dmand AI also links Dr. Fisher to 1 hospital, 1 group practice or clinic and 1 medical group.
What is Dr. Mason Gordon Fisher's office phone number?
The practice phone on file for Dr. Fisher is (608) 775-3176.
What is Dr. Mason Gordon Fisher's medical license number?
Dr. Fisher holds Wisconsin license 55044, one of the licenses on file in 2 states.
Which states has Dr. Mason Gordon Fisher been licensed in?
Dmand AI has state licenses on file for Dr. Fisher in Wisconsin and Ohio.
Which hospitals is Dr. Mason Gordon Fisher affiliated with?
Dr. Fisher is affiliated with Gundersen Lutheran Medical Center. Dmand AI links Dr. Fisher to 1 more hospital.
What medical group is Dr. Mason Gordon Fisher part of?
Dr. Fisher is linked to Gundersen Lutheran Medical Center. Dmand AI links Dr. Fisher to 1 more medical group.
Does Dr. Mason Gordon Fisher accept Medicare?
Yes. CMS data shows Dr. Fisher billed Medicare for 49 services in 2024, and Dr. Fisher accepts Medicare assignment.
How many Medicare patients does Dr. Mason Gordon Fisher see?
CMS counts 76 Medicare patients who saw Dr. Fisher in 2024, with an average age of 73.
Show 7 more questionsShow fewer questions
What services does Dr. Mason Gordon Fisher bill to Medicare?
In 2024, Dr. Fisher's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99222) and hospital inpatient care (99238).
Where did Dr. Mason Gordon Fisher go to medical school?
Dr. Fisher graduated from Ohio State University College of Medicine in 2003.
What drugs does Dr. Mason Gordon Fisher prescribe most?
In 2019 Medicare Part D data, Dr. Fisher's most prescribed drugs by claims were Xarelto.
Has Dr. Mason Gordon Fisher received payments from drug or device companies?
CMS Open Payments shows $89 in general payments to Dr. Fisher from 1 company from 2022 to 2022. The largest total came from Medtronic, Inc.
How long has Dr. Mason Gordon Fisher been practicing?
Dr. Fisher graduated from medical school in 2003, 23 years ago.
Does Dr. Mason Gordon Fisher do research?
Dmand AI links 3 publications to Dr. Fisher.
Who does Dr. Mason Gordon Fisher publish with?
Dr. Fisher's most frequent co-authors are Ezana M. Azene, MD, PhD (1 shared paper), Samuel Thomas Klinker (1 shared paper) and Benjamin M. Parsons, DO (1 shared paper).
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