Doctor profile · Federal record
Dr. Leo Shum, M.D
Critical Care Medicine (Internal Medicine) Physician (CMS: Emergency Medicine) · Emergency Medicine Physician · Pulmonary Disease Physician · Pasadena, CA
- NPI 1609061191
- Accepts Medicare
- 20 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
959 E Walnut St, Suite 120
Pasadena, CA 911061451
(626) 795-1831
fax (626) 795-2716
Credentials & registration
- NPI registered
- September 2007 — 19 yrs on file
- Profile last updated
- September 7, 2017
- Year of graduation
- 2006 — 20 yrs since
- Specialty taxonomy
- 207RC0200X — NUCC code
- State licenses (2)
- California #A121518 · Pennsylvania #MT188668
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1609061191. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
696
Distinct HCPCS
9
Medicare allowed
$119,691
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99291 |
Critical care, first 30-74 minutes | 411 | 146 | $222 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 80 | 61 | $125 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 65 | 51 | $83 | |
99292 |
Critical care, each additional 30 minutes | 50 | 42 | $111 | |
76937 |
Ultrasonic guidance for blood vessel access | 23 | 21 | $15 | |
36556 |
Insertion of non-tunneled central venous tube for infusion (5 years or older) | 22 | 21 | $86 | |
31500 |
Emergent insertion of breathing tube into windpipe using an endoscope | 17 | 16 | $144 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 17 | 17 | $137 | |
36620 |
Insertion of artery tube for blood sampling or infusion through skin | 11 | 11 | $46 |
In context: peer comparison
Among 2 peers in Pasadena Critical Care Medicine (Internal Medicine) Physician, average services per provider: 111. This provider delivers 6.3× the peer median.Open Payments
Industry payments received
All-time total
$22
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Abbvie INC. | 1 | $21.90 |
By nature of payment
Hospital affiliations
Frequently asked questions
What is Dr. Leo Shum's medical specialty?
Dr. Leo Shum practices Critical Care Medicine (Internal Medicine) Physician in Pasadena, CA.
Where does Dr. Leo Shum practice?
Dr. Leo Shum practices at 959 E Walnut St, Pasadena, CA 911061451. Office phone: 6267951831.
What is Dr. Leo Shum's NPI?
Dr. Leo Shum's National Provider Identifier (NPI) is 1609061191, issued by NPPES.
Does Dr. Leo Shum accept Medicare assignment?
Yes. Dr. Leo Shum accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Leo Shum commonly perform?
Top Medicare-reported procedures in 2023: Critical care (HCPCS 99291); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232). Source: CMS Medicare Physician & Other Practitioners file.