Doctor profile · Federal record
Dr. Rex Chung, M.D.
Surgical Critical Care Physician (CMS: Critical Care (Intensivists)) · Surgery Physician · Loma Linda, CA
- NPI 1003021882
- Accepts Medicare
- MIPS 78.8 / 100 · 2023
- 21 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
11175 Campus St, Rm 21008
Loma Linda, CA 923501700
(909) 558-8131 - Mailing address
-
25246 Barton RD, Apt. #12
Loma Linda, CA 923543060
Credentials & registration
- NPI registered
- May 2007 — 19 yrs on file
- Profile last updated
- March 23, 2016
- Year of graduation
- 2005 — 21 yrs since
- Specialty taxonomy
- 2086S0102X — NUCC code
- State license (1)
- California #A99992
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1003021882. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
536
Distinct HCPCS
6
Medicare allowed
$83,345
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99291 |
Critical care, first 30-74 minutes | 220 | 74 | $226 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 157 | 69 | $85 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 50 | 49 | $186 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 44 | 34 | $127 | |
99231 |
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 42 | 41 | $53 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 23 | 23 | $139 |
In context: peer comparison
Among 3 peers in this city , average services per provider: 55. This provider delivers 9.7× the peer median.Open Payments
Industry payments received
All-time total
$4,160
Transactions
18
Manufacturers
2
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| INTUITIVE SURGICAL, INC. | 17 | $3,985.09 | |
| Medtronic, Inc. | 1 | $175.00 |
By nature of payment
Hospital affiliations
Frequently asked questions
What is Dr. Rex Chung's medical specialty?
Dr. Rex Chung practices Surgical Critical Care Physician in Loma Linda, CA.
Where does Dr. Rex Chung practice?
Dr. Rex Chung practices at 11175 Campus St, Loma Linda, CA 923501700. Office phone: 9095588131.
What is Dr. Rex Chung's NPI?
Dr. Rex Chung's National Provider Identifier (NPI) is 1003021882, issued by NPPES.
Does Dr. Rex Chung accept Medicare assignment?
Yes. Dr. Rex Chung accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Rex Chung commonly perform?
Top Medicare-reported procedures in 2023: Critical care (HCPCS 99291); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Initial hospital care with moderate level of medical decision making (HCPCS 99223). Source: CMS Medicare Physician & Other Practitioners file.