Doctor profile · Federal record
Dr. Wen Sun Lum, MD
Internal Medicine Physician (CMS: Internal Medicine) · South Bend, IN
- NPI 1497781124
- Accepts Medicare
- 24 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
615 N Michigan St, 1St Fl Hospitalist Ste
South Bend, IN 466011033
(574) 647-3050 - Mailing address
-
3245 Health Drive, Suite 100
Granger, IN 465303245
Credentials & registration
- NPI registered
- June 2006 — 20 yrs on file
- Profile last updated
- May 1, 2023
- Year of graduation
- 2002 — 24 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Indiana #01068990A
- Medicaid
- IN #201005070
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1497781124. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
355
Distinct HCPCS
3
Medicare allowed
$56,834
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 300 | 278 | $162 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 37 | 36 | $122 | |
99291 |
Critical care, first 30-74 minutes | 18 | 18 | $199 |
In context: peer comparison
Among 19 peers in South Bend Internal Medicine Physician, average services per provider: 131. This provider delivers 2.7× the peer median.Frequently asked questions
What is Dr. Wen Sun Lum's medical specialty?
Dr. Wen Sun Lum practices Internal Medicine Physician in South Bend, IN.
Where does Dr. Wen Sun Lum practice?
Dr. Wen Sun Lum practices at 615 N Michigan St, South Bend, IN 466011033. Office phone: 5746473050.
What is Dr. Wen Sun Lum's NPI?
Dr. Wen Sun Lum's National Provider Identifier (NPI) is 1497781124, issued by NPPES.
Does Dr. Wen Sun Lum accept Medicare assignment?
Yes. Dr. Wen Sun Lum accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Wen Sun Lum commonly perform?
Top Medicare-reported procedures in 2023: Initial hospital care with moderate level of medical decision making (HCPCS 99223); Initial hospital care with straightforward or low-level medical decision making (HCPCS 99222); Critical care (HCPCS 99291). Source: CMS Medicare Physician & Other Practitioners file.