EAMMON GROSEK
NPI 1154855732
Internal Medicine in Marshfield, WI

Q: What is Eammon Grosek's NPI number?

The NPI number for Eammon Grosek is 1154855732. It was assigned to this individual provider in the NPPES registry on April 20, 2017.

Q: What is Eammon Grosek's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Q: When was this NPI record last updated?

The NPPES record for Eammon Grosek was last updated on April 20, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.

Active since April 20, 2017PECOS EnrolledAccepts Medicare Assignment

97.58/100

CMS Quality Rating

1000 N OAK AVE, MARSHFIELD, WI 54449(719) 649-0232 Get Directions Write a Review

NPPES record last updated: April 20, 2017. Verified against the NPPES registry weekly; last sync: August 09, 2026.

On this page

About Eammon Grosek NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

EAMMON GROSEK (NPI 1154855732) is an individual internal medicine provider in Marshfield, Wisconsin, licensed in Wisconsin (6523) and active in the NPI registry since April 2017. He is enrolled in Medicare PECOS, is affiliated with Monument Health Spearfish Hospital, and is a graduate of Sanford School Of Medicine Of University Of South Dakota (2016).

NPPES Registry Identity

NPI1154855732

Entity TypeIndividualMale

Primary Taxonomy207R00000X

Provider Legal NameEAMMON GROSEK

Location Address1000 N OAK AVEMarshfield, WI 54449-5703

Mailing Address1000 N Oak AveMarshfield, WI 54449-5703

Phone(719) 649-0232

Sole ProprietorNo

Medical School CMSSanford School Of Medicine Of University Of South DakotaGraduated 2016

Enumeration DateApril 20, 2017

✔ NPI 1154855732 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

License✔ Licensed in WI · 6523

Definition

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.

1000 N OAK AVE, Marshfield, WI 54449

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Medica, Oscar Insurance Company, Sanford Health Plan.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

Eammon Grosek 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.

PECOS PAC ID6901169390

PECOS Enrollment IDI20200930001439

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 5

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.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

675 services350 patients

Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439

An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.

239 services239 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

125 services98 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

29 services29 patients

Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit G0438

An annual wellness visit is a yearly appointment with your doctor to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's an opportunity to discuss your health status and goals and get a plan tailored for you.

11 services11 patients

Hospital Affiliations CMS Care Compare 3

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Monument Health Spearfish Hospital

Acute Care Hospitals · Spearfish, SD

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number430048

Location1440 N Main StSpearfish, SD 57783 · Lawrence County

Emergency services

Monument Health Rapid City Hospital

Acute Care Hospitals · Rapid City, SD

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number430077

Location353 Fairmont BlvdRapid City, SD 57701 · Pennington County

Emergency services Birthing friendly

Monument Health Sturgis Hospital

Critical Access Hospitals · Sturgis, SD

OwnershipVoluntary non-profit - Other

CMS Certification Number431321

Location2140 Junction AveSturgis, SD 57785 · Meade County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 54449 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$123.69 typical visit price

range $53.90 – $163.24

Typical copayment $30.92 (range $13.47 – $40.81)

Most-billed visit code 99204

Established Patient

$95.41 typical visit price

range $17.40 – $133.76

Typical copayment $23.85 (range $4.35 – $33.44)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

97.58/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored through an Alternative Payment Model

Quality

86.53

Promoting Interoperability

100

Improvement Activities

Referred Medical Equipment & Supplies CMS DME claims 12

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253

DME-Other DME · category DE017N

10 suppliers26 claims89 services$6.68 avg. paid by Medicare

Intermittent urinary catheter; straight tip, with or without coating (teflon, silicone, silicone elastomer, or hydrophilic, etc.), each A4351

DME-Orthotic Devices · category DF008N

1 supplier11 claims1,980 services$1.49 avg. paid by Medicare

Tubing with integrated heating element for use with positive airway pressure device A4604

DME-Other DME · category DE001N

4 suppliers14 claims14 services$35.63 avg. paid by Medicare

Filter, disposable, used with positive airway pressure device A7038

DME-Other DME · category DE001N

5 suppliers17 claims92 services$2.35 avg. paid by Medicare

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431

DME-Oxygen and Supplies · category DC000N

2 suppliers33 claims33 services$18.70 avg. paid by Medicare

Humidifier, heated, used with positive airway pressure device E0562

DME-Other DME · category DE001N

2 suppliers12 claims19 services$16.68 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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.

ALISON RAE SAMPSON D.O.

Obstetrics & Gynecology