Dr. Maria E. Linnaus, MD

  • Eau Claire, WI
  • General surgeon
NPI1609210558PAC ID1759504475
Medicare services, 2024
155
Medicare patients, 2024
135
Part D claims, 2024
81
Publications
25
Hospital affiliations
5
Practice address
1221 Whipple St, Eau Claire, WI 54703
Practice phone
Call (715) 838-3311
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Mayo Clinic Health System in Eau Claire

Hospital · Eau Claire, Wisconsin

See all 11 affiliations

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Dr. Maria E. Linnaus is a general surgeon in Eau Claire, Wisconsin

Dr. Linnaus practices at Mayo Clinic Health System in Eau Claire in Eau Claire, Wisconsin, part of Mayo Clinic.

Dr. Linnaus' NPI, 1609210558, was assigned on April 22, 2013. Dr. Linnaus graduated from Creighton University School of Medicine in 2013. Dr. Linnaus holds Wisconsin license 70899.

NPI and contact details
Medicare PAC ID
1759504475
NPI enumeration date
April 22, 2013
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(715) 838-3311
Professional email
Get email
Personal email
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Mobile number
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Sex
Female
Estimated age
39
Medical school graduation
2013

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Maria E. Linnaus practices at Mayo Clinic Health System in Eau Claire in Eau Claire, Wisconsin

Dr. Linnaus' primary practice is Mayo Clinic Health System in Eau Claire, at 1221 Whipple St, Eau Claire, WI 54703 in Eau Claire County. The practice phone is (715) 838-3311.

Source: Dmand AI Affiliation Data

Dr. Maria E. Linnaus is affiliated with 8 sites of care and 3 medical groups

Dr. Linnaus' primary practice is Mayo Clinic Health System in Eau Claire in Eau Claire, Wisconsin, part of Mayo Clinic. Dr. Linnaus is also affiliated with Mayo Clinic Health System in La Crosse. The medical group on file is Mayo Clinic Health System in Eau Claire. Dmand AI also links Dr. Linnaus to 3 more hospitals, 3 group practices and clinics and 2 medical groups, each named with a free account.

See all 11 affiliations for Dr. Linnaus

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Maria E. Linnaus' practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Linnaus practices, 8 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Mayo Clinic Health System in Eau ClaireAvailable with a free account
+7 more sites and 2 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

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Dr. Maria E. Linnaus is one of 565 general surgeons in Wisconsin

Surgery is Dr. Linnaus' primary specialty in the NPI Registry, under taxonomy code 208600000X. Dmand AI has Dr. Linnaus' licenses on file in 3 states: Wisconsin, Arizona and Minnesota.

Specialties and state licenses

  • Surgery, WisconsinPrimaryLicense 70899 · taxonomy 208600000X
  • Arizona licenseLicense R73759
  • Minnesota licenseLicense 67507

General surgeons near Dr. Linnaus

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. Maria E. Linnaus billed Medicare for 155 services in 2024

CMS data shows 155 Medicare services from Dr. Linnaus across 7 procedure codes in 2024, for 135 Medicare patients. Medicare paid $7,934 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2024155
Medicare patients135
Paid by Medicare$7,934
Procedure codes7

Dr. Linnaus' Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 1532024: 12816%
Other services
2023: 02024: 27

Dr. Linnaus compared with the Wisconsin median for general surgeons, 2024

  • Dr. Linnaus
  • Wisconsin median
Medicare services
155vs 9957% above
Medicare patients
135vs 10035% above
Part D claims
47vs 3727% above

Medians across 557 general surgeons in Wisconsin with Dmand AI profiles that report each measure.

Dr. Linnaus' 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.

See all procedures by Dr. Linnaus

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Maria E. Linnaus treated 135 Medicare patients in 2024, average age 71

CMS counts 135 Medicare patients who saw Dr. Linnaus in 2024. The largest group is 65 to 74, with 71 patients. 75% of them have high cholesterol, and 74% have high blood pressure. 27% are also on Medicaid. Their average risk score is 1.50, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Linnaus' median patient age at 67, with 61% women.

Medicare patients, 2024135
Average age71
Average risk score1.50
Also on Medicaid27%

Dr. Linnaus' Medicare patients by age, 2024

Dr. Linnaus' Medicare patients by sex, 2024

  • Women7959%
  • Men5641%

Chronic conditions among Dr. Linnaus' Medicare patients, 2024

  1. High cholesterol75%
  2. High blood pressure74%
  3. Arthritis36%
  4. Chronic kidney disease33%
  5. Ischemic heart disease33%
  6. Mood disorders28%
  7. Heart failure27%
  8. Anxiety25%

Share of Medicare patients with each condition. A patient can have several.

Dr. Linnaus' patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 67

Patient panel by sex, all payers

  • Women61%
  • Men38%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Maria E. Linnaus wrote 81 Medicare Part D claims in 2024

In 2024, Dr. Linnaus wrote 81 Medicare Part D claims for 44 patients. 96% of them were for generic drugs. CMS names the drug for 47 of them, across 2 drugs with 11 or more claims each, at $637 in total drug cost. In 2017, CMS named 33 claims across 2 drugs.

Part D claims, 202481
Drugs named by CMS2
Total drug cost$637
Part D patients44

Dr. Linnaus' Part D claims by kind of drug, 2024

  • Generic78 claims96%
  • Brand-name and other3 claims4%

Dr. Linnaus' most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Drug classes CMS tracks in Dr. Linnaus' Part D claims, 2024

  • Opioids37%30 of 81 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2017 to 2024

  • 2017
  • 2024
Claims for drugs CMS names
2017: 332024: 4742%

Drugs named by CMS: 2 in 2024, 2 in 2017.

See all prescribing by Dr. Linnaus

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

Dr. Maria E. Linnaus ranks in the 42nd percentile for upper gastrointestinal (gi) endoscopy for acid reflux in Medicare

Dr. Linnaus accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Linnaus as offering telehealth. CMS counts 11 procedures of upper gastrointestinal (gi) endoscopy for acid reflux by Dr. Linnaus, more than 42% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Where Dr. Linnaus ranks in Medicare procedure volume

Upper gastrointestinal (GI) endoscopy for acid reflux
42nd percentile11 procedures

CMS ranks each clinician against every clinician it reports for the same procedure category.

Hernia repair (minimally invasive): 1 to 10 procedures (CMS shows small counts as a range)

Hernia repair - groin (open): 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)

Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)

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Dr. Maria E. Linnaus has 25 publications on record

Dmand AI links 25 papers to Dr. Linnaus, published from 2015 to 2024. 2016 was the busiest year, with 6. The most frequent topics are Wounds, Nonpenetrating, Appendectomy and Appendicitis. Dr. Linnaus has published most often in J Pediatr Surg. Dr. Linnaus' most frequent co-authors are Adam Craig Alder, MD, Amina Bhatia, MD and Robert Warren Letton, MD.

Papers25
Years published2015 to 2024

Dr. Linnaus' papers by year, 2015 to 2024

Topics Dr. Linnaus writes about most

  • Wounds, Nonpenetrating
  • Appendectomy
  • Appendicitis
  • Laparoscopy
  • Liver
  • Spleen
  • Trauma Centers
  • Abdominal Injuries

Dr. Linnaus' most frequent co-authors

Recent publications by Dr. Linnaus

See all 25 publications and co-authors

See who Dr. Linnaus researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Linnaus works with, so you can find a warm path to the right general surgeons.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Maria E. Linnaus received $5,775 in industry payments from 2017 to 2023

CMS Open Payments shows 23 general payments to Dr. Linnaus from 4 drug and device companies from 2017 to 2023. Education make up the largest share, 69% of the total. Intuitive Surgical, Inc. paid the most, $5,232.

General payments to Dr. Linnaus by program year, 2017 to 2023

General payments to Dr. Linnaus by kind, 2017 to 2023

$5.8Kin total
  • Education$4,00069%
  • Food and beverage$99017%
  • Travel and lodging$78414%

Companies that paid Dr. Linnaus the most, 2017 to 2023

Share is of all general payments to this clinician.

See all payments to Dr. Linnaus

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Maria E. Linnaus graduated from Creighton University School of Medicine

Dr. Linnaus graduated from Creighton University School of Medicine in 2013.

  1. Medical schoolCreighton University School of Medicine

Source: Dmand AI Professional Profile Data

Sources for Dr. Maria E. Linnaus's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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 percentilesDoctors 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-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Maria E. Linnaus

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. Maria E. Linnaus' NPI number?

Dr. Maria E. Linnaus' NPI number is 1609210558. It was assigned on April 22, 2013, and it is active in the NPI Registry.

What kind of doctor is Dr. Maria E. Linnaus?

Dr. Maria E. Linnaus is a general surgeon in Eau Claire, Wisconsin. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).

Where does Dr. Maria E. Linnaus practice?

Dr. Linnaus practices at 1221 Whipple St, Eau Claire, WI 54703. Dr. Linnaus' primary practice is Mayo Clinic Health System in Eau Claire in Eau Claire, Wisconsin, part of Mayo Clinic. Dmand AI also links Dr. Linnaus to 3 hospitals, 3 group practices and clinics and 2 medical groups.

What is Dr. Maria E. Linnaus' office phone number?

The practice phone on file for Dr. Linnaus is (715) 838-3311.

What is Dr. Maria E. Linnaus' medical license number?

Dr. Linnaus holds Wisconsin license 70899, one of the licenses on file in 3 states.

Which states has Dr. Maria E. Linnaus been licensed in?

Dmand AI has state licenses on file for Dr. Linnaus in Wisconsin, Arizona and Minnesota.

Which hospitals is Dr. Maria E. Linnaus affiliated with?

Dr. Linnaus practices at Mayo Clinic Health System in Eau Claire in Eau Claire, Wisconsin. Dr. Linnaus is also affiliated with Mayo Clinic Health System in La Crosse. Dmand AI links Dr. Linnaus to 3 more hospitals.

What medical group is Dr. Maria E. Linnaus part of?

Dr. Linnaus is linked to Mayo Clinic Health System in Eau Claire. Dmand AI links Dr. Linnaus to 2 more medical groups.

Does Dr. Maria E. Linnaus accept Medicare?

Yes. CMS data shows Dr. Linnaus billed Medicare for 155 services in 2024, and Dr. Linnaus accepts Medicare assignment.

Does Dr. Maria E. Linnaus offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Linnaus as offering telehealth services.

Show 8 more questionsShow fewer questions

How many Medicare patients does Dr. Maria E. Linnaus see?

CMS counts 135 Medicare patients who saw Dr. Linnaus in 2024, with an average age of 71.

What services does Dr. Maria E. Linnaus bill to Medicare?

In 2024, Dr. Linnaus' most billed Medicare services were office visit, established patient (99213), office visit, established patient (99212) and medicare service (G2211).

Where did Dr. Maria E. Linnaus go to medical school?

Dr. Linnaus graduated from Creighton University School of Medicine in 2013.

What drugs does Dr. Maria E. Linnaus prescribe most?

In 2024 Medicare Part D data, Dr. Linnaus' most prescribed drugs by claims were Oxycodone HCl and Ursodiol.

Has Dr. Maria E. Linnaus received payments from drug or device companies?

CMS Open Payments shows $5,775 in general payments to Dr. Linnaus from 4 companies from 2017 to 2023. The largest total came from Intuitive Surgical, Inc.

How long has Dr. Maria E. Linnaus been practicing?

Dr. Linnaus graduated from medical school in 2013, 13 years ago.

Does Dr. Maria E. Linnaus do research?

Dmand AI links 25 publications to Dr. Linnaus, published from 2015 to 2024.

Who does Dr. Maria E. Linnaus publish with?

Dr. Linnaus' most frequent co-authors are Adam Craig Alder, MD (5 shared papers), Amina Bhatia, MD (5 shared papers) and Robert Warren Letton, MD (5 shared papers).

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