Doctor profile · Federal record
Dr. Warren Lam, Medical Doctor
Diagnostic Radiology Physician (CMS: Diagnostic Radiology) · Body Imaging Physician · Nuclear Radiology Physician · Vascular & Interventional Radiology Physician · Diagnostic Ultrasound Physician · Pasadena, CA
- NPI 1114917143
- Accepts Medicare
- MIPS 76.7 / 100 · 2023
- 38 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
100 W California Blvd
Pasadena, CA 911053010
(626) 397-5139
fax (626) 447-1058 - Mailing address
-
223 N 1St Ave, Suite #201
Arcadia, CA 910067089
Credentials & registration
- NPI registered
- October 2005 — 21 yrs on file
- Profile last updated
- October 21, 2014
- Year of graduation
- 1988 — 38 yrs since
- Specialty taxonomy
- 2085R0202X — NUCC code
- State license (1)
- California #G76496
- Medicaid
- CA #00G764960
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1114917143. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
13,985
Distinct HCPCS
10
Medicare allowed
$350,128
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
71045 |
X-ray of chest, 1 view | 4,007 | 2,417 | $9 | |
A9585 |
Injection, gadobutrol, 0.1 ml | 3,542 | 60 | $0 | |
Q9967 |
Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml | 1,545 | 16 | $0 | |
70450 |
Ct scan head or brain without contrast | 382 | 359 | $42 | |
71046 |
X-ray of chest, 2 views | 322 | 319 | $39 | |
72148 |
Mri scan of lower spinal canal without contrast | 247 | 246 | $147 | |
74018 |
X-ray of abdomen, 1 view | 226 | 183 | $9 | |
76700 |
Complete ultrasound scan of abdomen | 182 | 181 | $134 | |
73560 |
X-ray of knee, 1-2 views | 160 | 152 | $9 | |
76770 |
Complete ultrasound scan behind abdominal cavity | 160 | 159 | $124 |
In context: peer comparison
Among 13 peers in this city , average services per provider: 312. This provider delivers 45× the peer median.Open Payments
Industry payments received
All-time total
$20
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Philips North America LLC | 1 | $19.57 |
By nature of payment
Frequently asked questions
What is Dr. Warren Lam's medical specialty?
Dr. Warren Lam practices Diagnostic Radiology Physician in Pasadena, CA.
Where does Dr. Warren Lam practice?
Dr. Warren Lam practices at 100 W California Blvd, Pasadena, CA 911053010. Office phone: 6263975139.
What is Dr. Warren Lam's NPI?
Dr. Warren Lam's National Provider Identifier (NPI) is 1114917143, issued by NPPES.
Does Dr. Warren Lam accept Medicare assignment?
Yes. Dr. Warren Lam accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Warren Lam commonly perform?
Top Medicare-reported procedures in 2023: X-ray of chest, 1 view (HCPCS 71045); Injection, gadobutrol, 0.1 ml (HCPCS A9585); Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml (HCPCS Q9967). Source: CMS Medicare Physician & Other Practitioners file.