Eammon Grosek

Internal Medicine

Eammon Grosek is an Internal Medicine specialist based in Marshfield, WI with over 10 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.

(719) 649-0232Marshfield, WI
Telehealth Available
NPI Active per CMS — Q2 2026|Medicare Enrolled|Order & Refer

Patients across WI can see Eammon Grosek in person in Marshfield or via virtual visit — no travel required. Trained at Sanford School of Medicine of University of South Dakota (class of 2016), he has been practicing for over 10 years. Among his Medicare patients, common conditions include hypertension, high cholesterol, and arthritis (per CMS data). CMS MIPS quality score: 97.58/100 (2023).

At a glance

  • Prescribes opioids less than 27% of reporting doctors in Wisconsin
  • Uses generic medications more than 47% of reporting doctors in Wisconsin
  • Federal MIPS score higher than 93% of MIPS-scored doctors in Wisconsin
  • Virtual visits available — no app or travel required
1 of 299 Internal Medicine providers in WISee all Internal Medicine in Marshfield10+ years experienceNPI since 2017

Older · 3321dNPPES updated 2017-04-20 · verify NPI on CMS · Verify license at Wisconsin Medical Examining Board

Contact & Location

Practice Location

1000 N Oak Ave, Marshfield, WI 54449-5703

CMS Clinical Data

How Does This Doctor Compare?

Based on Medicare data, this doctor scores better than 93% of doctors in Wisconsin on federal quality measures, prescribes opioid pain medications conservatively, favors affordable generic drugs over brand-name ones.

MIPS Score

2023

97.58/100

Wisconsin avg: 82.1 · US avg: 83.6

Higher than most doctors nationally(+14 pts)

Top 7% of MIPS-scored doctors in Wisconsin

How the government rates this doctor's Medicare care quality. Scores above 75 are considered good.

Opioid Rx

↓ Lower = better

3.37%

Wisconsin avg: 4.3 · US avg: 5.1

Higher than most doctors nationally(-1.7 pts)

3.37% of this doctor's prescriptions are opioid pain medications. Lower means more cautious prescribing.

Generic Rx

↑ Higher = better

87.1%

Wisconsin avg: 82.2 · US avg: 82.8

Higher than most doctors nationally(+4.3 pts)

Typical range among reporting doctors in Wisconsin

How often this doctor prescribes affordable generic drugs instead of expensive brand-name ones.

Medicare Patients

480

Unique beneficiaries

Standard volume

Prescription Recipients

632

Patients prescribed

Prescriptions Written

9,633

Total claims

Total Medicare drug cost: $1.09M

Percentile rankings compared against 779 reporting peers in Wisconsin.

Data Note: Sourced from CMS Medicare Provider Utilization & Payment Data. Percentile rankings compare this provider against all peers with reported data in the same state. Updated annually to reflect the latest federal reporting cycle.

Patient Condition Panel

What This Doctor Treats Most

Based on Medicare claims data — here's what patients commonly see this doctor for

Based on Medicare data, this doctor primarily manages Hypertension, High Cholesterol, and Arthritis.

Hypertension
Higher than avg (+5%)75%

High blood pressure — a leading risk factor for heart disease and stroke

US avg: 70.2%

↑ More patients than average (+5%) — a focus area for this doctor

High Cholesterol
Higher than avg (+4%)74%

Elevated cholesterol or triglycerides that increase heart disease risk

US avg: 70.4%

↑ More patients than average (+4%) — a focus area for this doctor

Arthritis
49%

Joint inflammation causing pain, swelling, and stiffness

US avg: 49.3%
Diabetes
Lower than avg (-5%)29%

A condition where the body cannot properly regulate blood sugar levels

US avg: 34.5%

↓ Fewer patients than average (-5%) — less common here

Ischemic Heart Disease
Lower than avg (-6%)26%

Reduced blood flow to the heart muscle, commonly known as coronary artery disease

US avg: 31.7%

↓ Fewer patients than average (-6%) — less common here

Chronic Kidney Disease
Lower than avg (-6%)24%

Gradual loss of kidney function over time, often linked to diabetes or hypertension

US avg: 29.6%

↓ Fewer patients than average (-6%) — less common here

Atrial Fibrillation
Lower than avg (-1%)21%

An irregular, often rapid heartbeat that increases the risk of stroke

US avg: 22%

↓ Fewer patients than average (-1%) — less common here

GeneralBehavioralNational avg

Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.

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Background & Specialty

Education, training, and specialty classification from CMS NPPES and Medicare records.

Career Journey
  1. Graduated medical school · 2016

    Sanford School of Medicine of University of South Dakota

  2. 10 years in practice

    Established

Internal MedicineAllopathic & Osteopathic Physicians

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Taxonomy: 207R00000X

Education & Training

Sanford School of Medicine of University of South Dakota (Class of 2016)

Virtual Internal Medicine Care With Eammon Grosek

NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.

Schedule a virtual visit with Eammon Grosek for blood pressure monitoring, cholesterol management, arthritis follow-ups — no travel to Marshfield required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes. Medicare enrolled per CMS records.

Frequently Asked Questions

Common questions about Eammon Grosek

NPI records show Dr. Grosek as active with telehealth listed in Marshfield, WI. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (719) 649-0232.

Verified across 5 federal data sources

Sourced from CMS NPPES · OIG LEIE · CMS QPP 2023 · CMS Medicare Part D · CMS Physician Comparator. See Data Methodology.

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Medical Disclaimer: NPI Telehealth is a provider directory for informational purposes only. This page does not constitute medical advice, diagnosis, or treatment recommendations. Provider data is sourced from the CMS NPPES federal registry and public Medicare datasets. NPI Telehealth does not verify clinical qualifications beyond federal records. Data may not reflect real-time availability — always contact the provider's office directly to confirm details before seeking care.

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