JOHN C LESNIAK (M.D.) – Family Medicine Physician, NPI 1912979451

JOHN C LESNIAK (M.D.) is a healthcare provider. based in Hartland, Wisconsin. specializing in FAMILY PRACTICE. They hold the professional credentials M.D.. They hold a License No. 40186 (WI). The NPI Number for JOHN C LESNIAK (M.D.) is 1912979451

Main info

Male
29 Years Of Experience
Accepts Medicare Assignment
Name
JOHN C LESNIAK (M.D.)
NPI
1912979451
Phone
(262) 928-7500
Address
1500 WALNUT RIDGE DR
Enumeration Date
7 February 2006
Last Update Date
20 April 2012

Doctor Profile

Medical School Name
MEDICAL COLLEGE OF WISCONSIN
Secondary Phone
2629281900
Graduation Year
1997 (29 years ago)
PAC ID
6901826080
Group Practice PAC ID
3476465188
Professional Enrollment ID
I20051205000308
Address ID
WI531498475MU240XXAVEX300
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience54
Completeness75
Years active:20State licenses:1Digital endpointsOther names

3,050 FAMILY PRACTICE in WI

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Provider Addresses for JOHN C LESNIAK (M.D.)

  • 1500, Walnut Ridge Drive, River Reserve, Hartland, Waukesha County, Wisconsin, 53029, United States

    PROHEALTH CARE MEDICAL ASSOCIATES, INC.

    HARTLAND, WI 530299317

    Phone: (262) 928-7500

    Mailing address matches the actual address.

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

This can happen when there are no reportable CMS Open Payments records.

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2005-12-05

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.

Enrollment records

1

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20051205000308IFamily PracticeWITBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

Top Medicare procedures (2023) · refreshed 2026-05-27

HCPCSDescriptionServicesBeneficiariesMedicare allowed
99213Established patient office or other outpatient visit, 20-29 minutes221166$0
99214Established patient office or other outpatient visit, 30-39 minutes191123$0
G0439Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit155155$0
G0008Administration of influenza virus vaccine2929$0
90694Influenza vaccine, quadrivalent inactivated, 0.5 ml dosage2525$0
View full utilization report →

Insurance plans in this area (ZIP 53029)

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Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 3476465188View full group profile
NameSpecialtyState
-WI
-WI
Radiation OncologyWI
Clinical PsychologistWI
Nurse PractitionerWI
-WI
Family PracticeWI
Nurse PractitionerWI
-WI
Clinical Social WorkerWI

Reviews

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Frequently asked questions

Does JOHN C LESNIAK (M.D.) have a public NPI I can cite?
Public records show JOHN C LESNIAK (M.D.) under NPI 1912979451.
Is JOHN C LESNIAK (M.D.)'s NPI status active today?
Active status means JOHN C LESNIAK (M.D.)'s NPI record is not deactivated in the public file.
What type of care does JOHN C LESNIAK (M.D.) provide?
JOHN C LESNIAK (M.D.)'s profile centers on Family Medicine Physician. Clinical services aligned with this taxonomy classification.
What geographic area is tied to JOHN C LESNIAK (M.D.)?
JOHN C LESNIAK (M.D.) is associated with Hartland, Wisconsin in the same public data insurers reference.
Can I export JOHN C LESNIAK (M.D.)'s record?
You can download the official NPPES record; we summarize key fields for readability.

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