John A Zernia, MD - Medicare Emergency Medicine in La Crosse, WI

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John A Zernia, MD is a medicare enrolled "Emergency Medicine" physician in La Crosse, Wisconsin. He went to Medical College Of Wisconsin and graduated in 1985 and has 39 years of diverse experience with area of expertise as Emergency Medicine. He is a member of the group practice Gundersen Lutheran Medical Center Inc and his current practice location is 1836 South Ave, La Crosse, Wisconsin. You can reach out to his office (for appointments etc.) via phone at (608) 782-7300.

John A Zernia is licensed to practice in Wisconsin (license number 27859) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1124022728.

Contact Information

John A Zernia, MD
1836 South Ave,
La Crosse, WI 54601-5429
(608) 782-7300
Not Available

Map and Direction




Physician's Profile

Full NameJohn A Zernia
GenderMale
SpecialityEmergency Medicine
Experience39 Years
Location1836 South Ave, La Crosse, Wisconsin
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • John A Zernia attended and graduated from Medical College Of Wisconsin in 1985
  NPI Data:
  • NPI Number: 1124022728
  • Provider Enumeration Date: 06/10/2005
  • Last Update Date: 06/21/2017
  Medicare PECOS Information:
  • PECOS PAC ID: 5496889420
  • Enrollment ID: I20111019000845

Medical Identifiers

Medical identifiers for John A Zernia such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1124022728NPI-NPPES
31407300MedicaidWI

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207PE0004XEmergency Medicine - Emergency Medical Services 27859 (Wisconsin)Secondary
207P00000XEmergency Medicine 27859 (Wisconsin)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Gundersen Lutheran Medical CenterLa crosse, WIHospital
Gundersen Boscobel Area Hospital And ClinicsBoscobel, WIHospital
Tomah Memorial HospitalTomah, WIHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Gundersen Lutheran Medical Center Inc2163331414800

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. John A Zernia allows following entities to bill medicare on his behalf.
Entity NameGundersen Clinic Ltd
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1851343115
PECOS PAC ID: 9638082779
Enrollment ID: O20031106000139
Entity NameMoundview Memorial Hospital & Clinics Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1710939533
PECOS PAC ID: 1355250432
Enrollment ID: O20031121000846
Entity NameMemorial Hospital Of Boscobel
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1760459846
PECOS PAC ID: 8325957673
Enrollment ID: O20040115000725
Entity NameTomah Memorial Hospital Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1992970453
PECOS PAC ID: 6901897016
Enrollment ID: O20040519000123
Entity NameSt Joseph's Health Services Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1104031798
PECOS PAC ID: 3971586439
Enrollment ID: O20040615000273
Entity NameTri-county Memorial Hospital Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1124063573
PECOS PAC ID: 4587642418
Enrollment ID: O20040708000696
Entity NameGundersen Lutheran Medical Center Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1376593442
PECOS PAC ID: 2163331414
Enrollment ID: O20130619000254

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. John A Zernia is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
John A Zernia, MD
1836 South Ave,
La Crosse, WI 54601-5429

Ph: (608) 782-7300		John A Zernia, MD
1836 South Ave,
La Crosse, WI 54601-5429

Ph: (608) 782-7300

Reviews and Comments


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Dr. Gabriel L Marsh, M.D.
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Practice Location: 1836 South Ave, La Crosse, WI 54601
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Andrew Ronald Jesson, M.D.
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Practice Location: 1836 South Ave, La Crosse, WI 54601
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Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.