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LESLIE HALVERSON NP
NPI 1740747211
Nurse Practitioner in Grafton, WI

Active since February 20, 2019PECOS EnrolledAccepts Medicare Assignment
975 PORT WASHINGTON RD, GRAFTON, WI 53024(262) 329-3127(262) 329-3520 Get Directions Write a Review

NPPES record last updated: April 1, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Apr 1, 2025, Aug 19, 2022, Nov 23, 2021 and 2 more (5 updates tracked since 2019).

About Leslie Halverson Np NPPES

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

LESLIE HALVERSON NP (NPI 1740747211) is an individual nurse practitioner in Grafton, Wisconsin, licensed in Wisconsin (9065-33) and active in the NPI registry since February 2019. She is enrolled in Medicare PECOS, is affiliated with Aurora Medical Center, and is a graduate of Other (2018).

NPPES Registry Identity

NPI1740747211
Entity TypeIndividualFemale
Primary Taxonomy363L00000X
Provider Legal NameLESLIE HALVERSONCredential: NP
Location Address975 PORT WASHINGTON RDGrafton, WI 53024-9204
Mailing AddressPo Box 735044Chicago, IL 60673-5044 · (800) 326-2250
Phone(262) 329-3127
Fax(262) 329-3520
Sole ProprietorNo
Medical School CMSOtherGraduated 2018
Enumeration DateFebruary 20, 2019
Last NPPES UpdateApril 1, 20255 updates tracked since enumeration
NPPES CertifiedApril 1, 2025
✔ NPI 1740747211 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363L00000X
License✔ Licensed in WI · 9065-33
Definition
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
975 PORT WASHINGTON RD, Grafton, WI 53024
Open in Google Maps ↗

Other Identifiers 1

Medicaid100086809WI

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Aspirus Health Plan, CareSource (Common Ground Healthcare) 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

Leslie Halverson Np 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 ID4981945086
PECOS Enrollment IDI20190417001378
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

3

Medicare enrollment records show Leslie Halverson reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Aurora Advanced Healthcare, Inc.
12 mi
Family Medicine
3003 W GOOD HOPE RD
Milwaukee, WI 53209
  • Reassigned Medicare billing, Wisconsin enrollment
  • 1,615 clinicians in this Medicare group
NPI 1265629133 (414) 352-3100
Aurora Medical Group, Inc.
23 mi
Obstetrics & Gynecology
8905 W LINCOLN AVE, SUITE 515
West Allis, WI 53227
  • Reassigned Medicare billing, Wisconsin enrollment
  • 4,609 clinicians in this Medicare group
NPI 1457592735 (414) 328-8650
Lakeshore Medical Clinic, LLC
25 mi
Family Medicine
2000 E LAYTON AVE STE 100
Saint Francis, WI 53235
  • Reassigned Medicare billing, Wisconsin enrollment
  • 960 clinicians in this Medicare group
NPI 1003861188 (414) 744-6589

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 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.

Advance care planning, first 30 minutes 99497
Advance care planning is a process where you discuss your healthcare preferences with your doctor. This conversation, lasting up to 30 minutes, helps ensure your wishes are respected if you're unable to communicate them in the future. It's about your care, your way.
105 services57 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
74 services39 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
55 services51 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
29 services17 patients
Advance care planning, each additional 30 minutes 99498
Advance care planning involves discussing and documenting your future health care preferences in case you're unable to make decisions for yourself. Each additional 30 minutes allows more time to explore your wishes, values, and goals for treatment.
24 services19 patients

Hospital Affiliations CMS Care Compare

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

Aurora Medical Center

Acute Care Hospitals · Grafton, WI
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number520207
Location975 Port Washington RoadGrafton, WI 53024 · Ozaukee County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 53024 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.

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.

ANNE R. HARLEY P.T.
Physical Therapist
975 PORT WASHINGTON RD
GRAFTON, WI 53024
Ozaukee County (262) 329-1000
MRS. MARGARET AIKINS KEUP APNP
Nurse Practitioner (Acute Care)
975 PORT WASHINGTON RD
GRAFTON, WI 53024
Ozaukee County (262) 329-1000
DR. TYLER ANDREW FRISQUE PHARMD
Pharmacist
975 PORT WASHINGTON RD
GRAFTON, WI 53024
Ozaukee County (262) 329-1600
CAITLIN DERENNE PA
Physician Assistant
975 PORT WASHINGTON RD
GRAFTON, WI 53024
Ozaukee County (360) 606-4292
DR. TIMOTHY JARON POW M.D.
Internal Medicine (Interventional Cardiology)
975 PORT WASHINGTON RD
GRAFTON, WI 53024
Ozaukee County (262) 329-8150
REBEKAH L OTTE NP
Nurse Practitioner
975 PORT WASHINGTON RD
GRAFTON, WI 53024
Ozaukee County (262) 329-8150
HAMID ABBAS AFSARI D.O.
Hospitalist
975 PORT WASHINGTON RD
GRAFTON, WI 53024
Ozaukee County (262) 329-1000
JESSICA BROOKS RYAN SLP
Speech-Language Pathologist
975 PORT WASHINGTON RD
GRAFTON, WI 53024
Ozaukee County (262) 329-2700

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 Leslie Halverson's NPI number?

The NPI number for Leslie Halverson is 1740747211. It was assigned to this individual provider in the NPPES registry on February 20, 2019.

Where is Leslie Halverson located?

Leslie Halverson practices at 975 Port Washington Rd, Grafton, WI 53024. The listed phone number is (262) 329-3127.

What is Leslie Halverson's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Is Leslie Halverson enrolled in Medicare?

Yes. Leslie Halverson 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 Leslie Halverson's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Leslie Halverson reassigns Medicare benefits to 3 organizations: Aurora Advanced Healthcare, Inc. (Milwaukee, WI), Aurora Medical Group, Inc. (West Allis, WI) and Lakeshore Medical Clinic, LLC (Saint Francis, 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 Leslie Halverson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Leslie Halverson accept?

Health plans from Anthem Blue Cross and Blue Shield, Aspirus Health Plan, CareSource (Common Ground Healthcare), Network Health and UnitedHealthcare list Leslie Halverson 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 Leslie Halverson affiliated with any hospitals?

According to CMS data, Leslie Halverson is affiliated with Aurora Medical Center.

When was this NPI record last updated?

The NPPES record for Leslie Halverson was last updated on April 1, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 months 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.