Dr. John Um
- Gender: Male
- Experience: 22 years
- Graduated from: Warren Alpert Medical School Of Brown University
- Graduation year: 1999
- Sole propriator: No
- NPI: 1134346745
Dr. John Um MD
Cardiothoracic Surgeon
He is located at 988102 Nebraska Medical Center in Omaha, NE 68198. Can help patients with the following: Aortic Stenosis, Collapsed Lung, Colon Cancer, Crohn's Disease, Enlarged Spleen, Lymphedema. His National Provider Identifier (NPI) number is 1134346745. Appointment can be made via the phone number (402) 559-9800. He is affiliated with 3 practices and 2 hospitals.
Conditions treated
Dr. John Um, being an cardiothoracic surgeon, 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 Um.
- Achalasia
- Anal Fissure
- Aortic Dissection
- Aortic Stenosis
- Appendicitis
- Boils
- Cancer
- Collapsed Lung
- Colon Cancer
- Crohn's Disease
- Cyst
- Diverticulosis
- Enlarged Spleen
- Esophageal Cancer
- Gallstones
- Gangrene
- Heart Disease
- Hemorrhoids
- Hernia
- Inflammatory Bowel Disease (IBD)
- Lymphedema
- Pancreatitis
- Peptic Ulcer
- Pilonidal Cyst
- Sebaceous Cyst
- Thoracic Outlet Syndrome (TOS)
- Ulcerative Colitis
- Ventricular Septal Defect (VSD)
Procedures Performed by Dr. John Um
ACA Marketplace (Obamacare/HealthCare.gov) plan networks
Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. John Um as in-network for the following 2026 plans.
Health plans
Blue Cross and Blue Shield of Nebraska
Network data as of Sep 16, 2026, as reported by the insurer.
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| HeartlandBlue Bronze HSA 6500 NEtwork Blue | EPO · Expanded Bronze | Preferred | Accepting new patients |
Medica
Network data as of Jul 13, 2026, as reported by the insurer.
Show all 36 plans from Medica
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Elevate by Medica Bronze $0 Copay PCP Visits | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Elevate by Medica Bronze Premier | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Elevate by Medica Expanded Bronze Standard | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Elevate by Medica Gold $0 Copay PCP Visits | EPO · Gold | Preferred | Accepting new patients |
| Elevate by Medica Gold Share | EPO · Gold | Preferred | Accepting new patients |
| Elevate by Medica Gold Standard | EPO · Gold | Preferred | Accepting new patients |
| Elevate by Medica Silver $0 Copay PCP Visits | EPO · Silver | Preferred | Accepting new patients |
| Elevate by Medica Silver Share | EPO · Silver | Preferred | Accepting new patients |
| Elevate by Medica Silver Standard | EPO · Silver | Preferred | Accepting new patients |
| Medica Insure Bronze Premier | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Medica Insure Bronze Share | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Medica Insure Expanded Bronze Standard | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Medica Insure Gold $0 Copay PCP Visits | EPO · Gold | Preferred | Accepting new patients |
| Medica Insure Gold Share | EPO · Gold | Preferred | Accepting new patients |
| Medica Insure Gold Standard | EPO · Gold | Preferred | Accepting new patients |
| Medica Insure Silver $0 Copay PCP Visits | EPO · Silver | Preferred | Accepting new patients |
| Medica Insure Silver Share | EPO · Silver | Preferred | Accepting new patients |
| Medica Insure Silver Standard | EPO · Silver | Preferred | Accepting new patients |
| Medica with CHI Health Bronze $0 Copay PCP Visits | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Medica with CHI Health Bronze $0 Copay PCP Visits + Adult Eye Exam | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Medica with CHI Health Bronze Premier | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Medica with CHI Health Bronze Premier + Adult Eye Exam | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Medica with CHI Health Expanded Bronze Standard | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Medica with CHI Health Expanded Bronze Standard + Adult Eye Exam | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Medica with CHI Health Gold $0 Copay PCP Visits | EPO · Gold | Preferred | Accepting new patients |
| Medica with CHI Health Gold $0 Copay PCP Visits + Adult Eye Exam | EPO · Gold | Preferred | Accepting new patients |
| Medica with CHI Health Gold Share | EPO · Gold | Preferred | Accepting new patients |
| Medica with CHI Health Gold Share + Adult Eye Exam | EPO · Gold | Preferred | Accepting new patients |
| Medica with CHI Health Gold Standard | EPO · Gold | Preferred | Accepting new patients |
| Medica with CHI Health Gold Standard + Adult Eye Exam | EPO · Gold | Preferred | Accepting new patients |
| Medica with CHI Health Silver $0 Copay PCP Visits | EPO · Silver | Preferred | Accepting new patients |
| Medica with CHI Health Silver $0 Copay PCP Visits + Adult Eye Exam | EPO · Silver | Preferred | Accepting new patients |
| Medica with CHI Health Silver Share | EPO · Silver | Preferred | Accepting new patients |
| Medica with CHI Health Silver Share + Adult Eye Exam | EPO · Silver | Preferred | Accepting new patients |
| Medica with CHI Health Silver Standard | EPO · Silver | Preferred | Accepting new patients |
| Medica with CHI Health Silver Standard + Adult Eye Exam | EPO · Silver | Preferred | Accepting new patients |
Oscar Insurance Company
Network data as of Sep 15, 2026, as reported by the insurer.
Show all 10 plans from Oscar Insurance Company
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Bronze Classic | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Bronze Classic Standard | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Bronze Elite + PCP Saver Plus | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Bronze Simple Diabetes | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Gold Classic Standard | EPO · Gold | Preferred | Accepting new patients |
| Gold Elite | EPO · Gold | Preferred | Accepting new patients |
| Silver Classic Standard | EPO · Silver | Preferred | Accepting new patients |
| Silver Simple Diabetes | EPO · Silver | Preferred | Accepting new patients |
| Silver Simple PCP Saver | EPO · Silver | Preferred | Accepting new patients |
| Silver Simple Women's Health with Menopause Benefits | 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 Um 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 Um is enrolled to bill Medicare as a Practitioner - Thoracic Surgery .
Bills through: Unmc Physicians
Based on Medicare's public enrollment records as of Jul 17, 2026. This reflects Medicare fee-for-service enrollment only and says nothing about other insurance, quality, outcomes, or board certification.
Payments received
Drug payment
| Abbott Laboratories | $14340 |
| Heartware | $11291 |
| St. Jude Medical | $5197 |
Other
| Travel and Lodging | $21955 |
| Consulting | $11450 |
| Food and Beverage | $9544 |
Studies
WARREN ALPERT MEDICAL SCHOOL OF BROWN UNIVERSITY
Graduated in 1999Additional Specialities
- Surgeon
Affiliated practices
Looking for more Cardiothoracic Surgeons?
There are 9 other cardiothoracic surgeons in this region.
- Gender: Male
- Address: 505 South 48th Street Omaha, 68198, NE
- Gender: Male
- Address: 988102 Nebraska Medical Center Omaha, 68198, NE
- Gender: Male
- Address: 25 Michigan Street Northeast Suite 4200 Grand Rapids, 49503, MI
- Gender: Female
- Address: Emile 42nd Street Omaha, 68198, NE
- Gender: Male
- Address: 988102 Nebraska Medical Center Omaha, 68198, NE
- Gender: Male
- Address: Emile 42nd Street Omaha, 68198, NE
- Gender: Male
- Address: Emile 42nd Street Omaha, 68198, NE
- Gender: Male
- Address: Emile 42nd Street Omaha, 68198, NE
- Gender: Male
- Address: 988102 Nebraska Medical Center Omaha, 68198, NE
Questions & Answers
Where can you meet with Dr. John Um?
Dr. John Um's office is located at 988102 Nebraska Medical Center in Omaha, NE 68198.
Does Dr. John Um accept patients with Medica?
Yes, Dr. John Um is listed in-network for Medica through the ACA Marketplace (Obamacare/HealthCare.gov). See the Marketplace plans section for details.
What conditions does Dr. John Um treat?
Dr. John Um provides treatment for Aortic Stenosis, Collapsed Lung, Colon Cancer, Crohn's Disease, Enlarged Spleen, Lymphedema. For the full list see this list.
Does Dr. John Um have affiliation with practices?
Dr. John Um is affiliated with Village Pointe Aesthetic Surgery. For the full list of practices see this list.
Has Dr. John Um affiliation with hospitals?
Dr. John Um is affiliated with THE NEBRASKA MEDICAL CENTER. For the full list of hospitals see this list.