Keung Ung, M.D.
NPI 1972640498 · Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Sioux Falls, SD
Enrolled with Medicare as Practitioner - Thoracic Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Keung Ung, M.D. is a Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician provider in Sioux Falls, SD (NPI 1972640498).
Provider details
- NPI number
- 1972640498
- Entity type
- Individual
- Primary specialty
- Thoracic Surgery (Cardiothoracic Vascular Surgery) PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 39678 (KY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
206 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 53 | $168 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 34 | $164 |
| Replacement of Aortic Valve Through the Skin and Femoral Artery33361 | 33 | $658 |
| Harvest of Vein Using an Endoscope33508 | 24 | $14 |
| Coronary Artery Bypass Using Artery Graft, 1 Graft33533 | 20 | $1,647 |
| Exclusion of Appendage of Left Upper Chamber of Heart Performed During Other Procedure on Chest33268 | 17 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$760 across 21 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (2)
- 1301 Pleasant Valley RdSuite 201Owensboro, KY 42303Phone: (270) 417-7500Fax: (270) 417-7529
- 1301 Pleasant Valley RdSuite 201Owensboro, KY 42303Phone: (270) 417-7500Fax: (270) 417-7529
Registry dates
- Enumerated
- 2007-01-31
- Last updated
- 2022-04-29
- Certified
- 2022-04-29
Frequently asked questions
- What is Keung Ung's NPI number?
- Keung Ung's National Provider Identifier (NPI) is 1972640498, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Keung Ung's specialty?
- Keung Ung is listed in the NPPES registry with a primary specialty of Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician (Allopathic & Osteopathic Physicians).
- Where is Keung Ung located?
- Keung Ung's practice location on file with NPPES is 1301 W 18th St, Sioux Falls, SD 57105.
- What is Keung Ung's phone number?
- The practice phone number listed in the NPPES registry for Keung Ung is (605) 312-2100.
- Does Keung Ung accept Medicare?
- Keung Ung is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Keung Ung's NPI active?
- Yes — Keung Ung's NPI (1972640498) is active in the NPPES registry as of the last update on 2022-04-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.