Dr. John A. Zernia
- Gender: Male
- Experience: 36 years
- Graduated from: Medical College Of Wisconsin
- Graduation year: 1985
- Sole propriator: No
- NPI: 1124022728
Dr. John A. Zernia MD
Emergency Physician
He is located at 1836 South Avenue in La Crosse, WI 54601. Can help patients with the following: Coronavirus, Hot Flashes, Hyperlipidemia, Migraine, Obesity, Prescription Refill. His National Provider Identifier (NPI) number is 1124022728. Appointment can be made via the phone number (608) 782-7300. He is affiliated with 3 practices and 2 hospitals.
Conditions treated
Dr. John A. Zernia, being an emergency physician, treats the following conditions. Please be advised that this list may not be complete. For the full list of conditions treated, consult directly with Dr. John A. Zernia.
- Abdominal Pain
- Acute Pain
- Altitude Sickness
- Anemia
- Angina
- Arthritis
- Asthma
- Atherosclerosis
- Bladder Control
- Brain Aneurysm
- Brain Hemorrhage
- Broken Bone
- Bruises
- Chest Pain
- Choking
- Cholecystitis
- Chronic Obstructive Pulmonary Disease (COPD)
- Common Cold
- Constipation
- Coronavirus
- Costochondritis
- Cystitis
- Diarrhea
- Edema
- Febrile Seizure
- Fever
- Frostbite
- Gastroesophageal Reflux Disease (GERD)
- General Care
- Headache
- Heart Disease
- Hematoma
- Hiatal Hernia
- High Blood Pressure
- Hot Flashes
- Hyperlipidemia
- Hyponatremia
- Influenza
- Inguinal Hernia
- Insect Stings
- Laceration
- Migraine
- Nausea and Vomiting
- Obesity
- Osteoporosis
- Peptic Ulcer
- Phlebitis and Thrombophlebitis
- Prescription Refill
- Urethritis
- Urinary Tract Infection (UTI)
- Whiplash
ACA Marketplace (Obamacare/HealthCare.gov) plan networks
Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. John A. Zernia as in-network for the following 2026 plans.
Health plans
Group Health Cooperative-SCW
Network data as of Sep 15, 2026, as reported by the insurer.
Show all 9 plans from Group Health Cooperative-SCW
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Partners HMO Bronze 10600 Ded/10600 MOOP HSA | HMO · Bronze | Partners HMO | Accepting new patients |
| Partners HMO Bronze 6000 Ded/10600 MOOP HSA | HMO · Bronze | Partners HMO | Accepting new patients |
| Partners HMO Bronze 7500 Ded/10000 MOOP HSA | HMO · Expanded Bronze | Partners HMO | Accepting new patients |
| Partners HMO Gold 1500 Ded/8000 MOOP with Vision | HMO · Gold | Partners HMO | Accepting new patients |
| Partners HMO Gold 2000 Ded/8200 MOOP | HMO · Gold | Partners HMO | Accepting new patients |
| Partners HMO Gold 4000 Ded/4000 MOOP HSA | HMO · Gold | Partners HMO | Accepting new patients |
| Partners HMO Silver 5500 Ded/8500 MOOP with Vision | HMO · Silver | Partners HMO | Accepting new patients |
| Partners HMO Silver 5975 Ded/5975 MOOP HSA | HMO · Silver | Partners HMO | Accepting new patients |
| Partners HMO Silver 6000 Ded/8900 MOOP | HMO · Silver | Partners HMO | Accepting new patients |
Medica
Network data as of Jul 13, 2026, as reported by the insurer.
Show all 9 plans from Medica
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Engage by Medica Bronze HSA | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Engage by Medica Bronze Share | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Engage by Medica Expanded Bronze Standard | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Engage by Medica Gold $0 Copay PCP Visits | EPO · Gold | Preferred | Accepting new patients |
| Engage by Medica Gold Share | EPO · Gold | Preferred | Accepting new patients |
| Engage by Medica Gold Standard | EPO · Gold | Preferred | Accepting new patients |
| Engage by Medica Silver $0 Copay PCP Visits | EPO · Silver | Preferred | Accepting new patients |
| Engage by Medica Silver Share | EPO · Silver | Preferred | Accepting new patients |
| Engage by Medica Silver Standard | EPO · Silver | Preferred | Accepting new patients |
This covers ACA Marketplace plans only, as reported by each insurer. It does not include employer, Medicare Advantage, or state-run exchange plans, and a plan missing from this list does not mean Dr. John A. Zernia is out of network. Insurer directories can be out of date, so always confirm with the insurer and the office before your visit.
Medicare Enrollment
Dr. John A. Zernia is enrolled to bill Medicare as a Practitioner - Emergency Medicine (also registered under: Practitioner - Internal Medicine) .
Bills through: Gundersen Clinic Ltd
Based on Medicare's public enrollment records as of Sep 29, 2026. This reflects Medicare fee-for-service enrollment only and says nothing about other insurance, quality, outcomes, or board certification.
Payments received
Drug payment
| Shire North American Group | $69240 |
| Baxalta | $50280 |
| Baxter Healthcare | $50062 |
Other
| Consulting | $169582 |
Studies
MEDICAL COLLEGE OF WISCONSIN
Graduated in 1985Additional Specialities
- Internist
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Questions & Answers
Does Dr. John A. Zernia accept insurance?
Dr. John A. Zernia is listed in-network for 18 ACA Marketplace (Obamacare/HealthCare.gov) plans from Group Health Cooperative-SCW, Medica. See the Marketplace plans section for details.
Does Dr. John A. Zernia have affiliation with practices?
Dr. John A. Zernia is affiliated with Team Rehab. For the full list of practices see this list.
What conditions does Dr. John A. Zernia treat?
Dr. John A. Zernia provides treatment for Coronavirus, Hot Flashes, Hyperlipidemia, Migraine, Obesity, Prescription Refill. For the full list see this list.
Where can you meet with Dr. John A. Zernia?
Dr. John A. Zernia's office is located at 1836 South Avenue in La Crosse, WI 54601.
Has Dr. John A. Zernia affiliation with hospitals?
Dr. John A. Zernia is affiliated with GUNDERSEN LUTHERAN MEDICAL CENTER. For the full list of hospitals see this list.