Doctor profile · Federal record
Dr. John Um, MD
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician (CMS: Thoracic Surgery) · Surgery Physician · Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Surgery Physician · Omaha, NE
- NPI 1134346745
- Accepts Medicare
- 27 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
988102 Nebraska Medical Center
Omaha, NE 681988102
(402) 559-9800
fax (402) 559-7929
Credentials & registration
- NPI registered
- April 2007 — 19 yrs on file
- Profile last updated
- September 17, 2012
- Year of graduation
- 1999 — 27 yrs since
- Specialty taxonomy
- 208G00000X — NUCC code
- State licenses (2)
- North Carolina #2007-01008 · California #A90965
- Medicaid
- NE #10026059800
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1134346745. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
107
Distinct HCPCS
5
Medicare allowed
$61,200
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
33508 |
Harvest of vein using an endoscope | 37 | 37 | $14 | |
33533 |
Coronary artery bypass using artery graft, 1 graft | 32 | 32 | $1,550 | |
33518 |
Coronary artery bypass using vein or artery graft, 2 grafts | 16 | 16 | $349 | |
33519 |
Coronary artery bypass using vein or artery graft, 3 grafts | 11 | 11 | $461 | |
36620 |
Insertion of artery tube for blood sampling or infusion through skin | 11 | 11 | $41 |
In context: peer comparison
Among 10 peers in this city , average services per provider: 28. This provider delivers 3.8× the peer median.Open Payments
Industry payments received
All-time total
$1,030
Transactions
11
Manufacturers
3
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Abbott Laboratories | 4 | $447.62 | |
| Edwards Lifesciences Corporation | 4 | $401.00 | |
| ABIOMED | 3 | $181.64 |
By nature of payment
Hospital affiliations
Frequently asked questions
What is Dr. John Um's medical specialty?
Dr. John Um practices Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician in Omaha, NE.
Where does Dr. John Um practice?
Dr. John Um practices at 988102 Nebraska Medical Center, Omaha, NE 681988102. Office phone: 4025599800.
What is Dr. John Um's NPI?
Dr. John Um's National Provider Identifier (NPI) is 1134346745, issued by NPPES.
Does Dr. John Um accept Medicare assignment?
Yes. Dr. John Um accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. John Um commonly perform?
Top Medicare-reported procedures in 2023: Harvest of vein using an endoscope (HCPCS 33508); Coronary artery bypass using artery graft, 1 graft (HCPCS 33533); Coronary artery bypass using vein or artery graft, 2 grafts (HCPCS 33518). Source: CMS Medicare Physician & Other Practitioners file.