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DR. JEFFREY ALAN KOWALSKI MD
NPI 1811169550
Family Medicine in Elkhorn, WI

Active since April 01, 2008PECOS EnrolledAccepts Medicare Assignment
839 N WISCONSIN ST, ELKHORN, WI 53121(262) 741-1400(262) 741-1401 Get Directions Write a Review

NPPES record last updated: July 9, 2013. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Dr. Jeffrey Alan Kowalski Md NPPES

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

DR. JEFFREY ALAN KOWALSKI MD (NPI 1811169550) is an individual family medicine provider in Elkhorn, Wisconsin, licensed in Wisconsin (54448-20) and active in the NPI registry since April 2008. He is enrolled in Medicare PECOS, is affiliated with Mercy Health System Corp, and is a graduate of Other (2007).

NPPES Registry Identity

NPI1811169550
Entity TypeIndividualMale
Primary Taxonomy207Q00000X
Provider Legal NameDR. JEFFREY ALAN KOWALSKICredential: MD
Location Address839 N WISCONSIN STElkhorn, WI 53121-4541
Mailing Address839 N Wisconsin StElkhorn, WI 53121-4541 · (262) 741-1400 · Fax (262) 741-1401
Phone(262) 741-1400
Fax(262) 741-1401
Sole ProprietorNo
Medical School CMSOtherGraduated 2007
Enumeration DateApril 1, 2008
Last NPPES UpdateJuly 9, 2013
✔ NPI 1811169550 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
Licenses✔ Licensed in WI · 54448-20✔ Licensed in CA · A117482
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
839 N WISCONSIN ST, Elkhorn, WI 53121
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Group Health Cooperative-SCW, MercyCare and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Jeffrey Alan Kowalski Md 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 ID2264600600
PECOS Enrollment IDI20110729000336
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.

Medicare Billing Reassignments

2

Medicare enrollment records show Jeffrey Kowalski reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Mercy Health System Corporation
6.2 mi
Critical Access
N2950 STATE ROAD 67
Lake Geneva, WI 53147
  • Reassigned Medicare billing, Wisconsin enrollment
  • Also billed through NPI 1669685129 (Wisconsin)
  • 271 clinicians in this Medicare group
NPI 1699728550 (262) 245-0535
Ascension Medical Group-Southeast Wisconsin Inc
42 mi
Anesthesiology
2301 N LAKE DR
Milwaukee, WI 53211
  • Reassigned Medicare billing, Wisconsin enrollment
  • 1,343 clinicians in this Medicare group
NPI 1194473066 (414) 585-1000

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 9

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.
327 services180 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.
293 services182 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.
173 services173 patients
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010
A routine electrocardiogram (ECG) with 12 leads is a simple, non-invasive test that records the electrical activity of your heart. It helps in identifying heart conditions by detecting irregularities in your heart rhythms. The results are interpreted and a report is provided.
43 services41 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.
27 services27 patients
Transitional care management services for problem of at least moderate complexity 99495
Transitional care management services focus on coordinating and managing your care after you leave the hospital. For moderate complexity problems, this involves managing your medications, arranging further treatments, and ensuring you have the necessary follow-ups.
20 services15 patients

Hospital Affiliations CMS Care Compare 2

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

Mercy Health System Corp

Acute Care Hospitals · Janesville, WI
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number520066
Location1000 Mineral Point AveJanesville, WI 53548 · Rock County
Emergency services Birthing friendly

Mercy Walworth Hospital & Medical Center

Critical Access Hospitals · Lake Geneva, WI
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number521357
LocationN2950 State Road 67Lake Geneva, WI 53147 · Walworth County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 53121 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
$82.92 typical visit price
range $53.90 – $163.24
Typical copayment $20.73 (range $13.47 – $40.81)
Most-billed visit code 99203
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.

Referred Medical Equipment & Supplies CMS DME claims 5

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
7 suppliers48 claims132 services$5.45 avg. paid by Medicare
Lancets, per box of 100 A4259
DME-Medical/Surgical Supplies · category DA000N
6 suppliers20 claims24 services$0.82 avg. paid by Medicare
Albuterol, inhalation solution, fda-approved final product, non-compounded, administered through dme, unit dose, 1 mg J7613
DME-Drugs Administered Through DME · category DG006N
1 supplier13 claims2,431 services$0.03 avg. paid by Medicare
Standard wheelchair K0001
DME-Wheelchairs · category DD000N
1 supplier12 claims12 services$27.78 avg. paid by Medicare
Pharmacy dispensing fee for inhalation drug(s); per 30 days Q0513
DME-Other DME · category DE000N
1 supplier13 claims13 services$22.01 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 3

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

FARES W SWEIS MD
Family Medicine
839 N WISCONSIN ST
ELKHORN, WI 53121
Walworth County (262) 741-1400
JESSICA ERIN FUREY DO
Family Medicine
839 N WISCONSIN ST
ELKHORN, WI 53121
Walworth County (262) 741-1400
MERCY HEALTH SYSTEM CORPORATION
Durable Medical Equipment & Medical Supplies
839 N WISCONSIN ST
ELKHORN, WI 53121
Walworth County (262) 741-1400

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 Jeffrey Kowalski's NPI number?

The NPI number for Jeffrey Kowalski is 1811169550. It was assigned to this individual provider in the NPPES registry on April 1, 2008.

Where is Jeffrey Kowalski located?

Jeffrey Kowalski practices at 839 N Wisconsin St, Elkhorn, WI 53121. The listed phone number is (262) 741-1400.

What is Jeffrey Kowalski's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Jeffrey Kowalski enrolled in Medicare?

Yes. Jeffrey Kowalski 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.

Which organizations bill Medicare for Jeffrey Kowalski's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Jeffrey Kowalski reassigns Medicare benefits to 2 organizations: Mercy Health System Corporation (Lake Geneva, WI) and Ascension Medical Group-Southeast Wisconsin Inc (Milwaukee, WI). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Jeffrey Kowalski's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Jeffrey Kowalski accept?

Health plans from Anthem Blue Cross and Blue Shield, Group Health Cooperative-SCW, MercyCare and MercyCare Health Plans list Jeffrey Kowalski 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 Jeffrey Kowalski affiliated with any hospitals?

According to CMS data, Jeffrey Kowalski is affiliated with Mercy Health System Corp and Mercy Walworth Hospital & Medical Center.

When was this NPI record last updated?

The NPPES record for Jeffrey Kowalski was last updated on July 9, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.