Doctor profile · Federal record
Dr. Weber Chen, M.D.
Hematology & Oncology Physician (CMS: Hematology/Oncology) · Specialist · Pasadena, CA
- NPI 1679504393
- Accepts Medicare
- MIPS 96.9 / 100 · 2023
- 28 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
50 Alessandro Pl Ste 310
Pasadena, CA 911054000
(626) 288-0008
fax (866) 741-4630 - Mailing address
-
541 W Colorado St, Ste 205
Glendale, CA 912043640
Credentials & registration
- NPI registered
- July 2006 — 20 yrs on file
- Profile last updated
- July 21, 2021
- Year of graduation
- 1998 — 28 yrs since
- Specialty taxonomy
- 207RH0003X — NUCC code
- State license (1)
- California #A85444
- Medicaid
- CA #00A854440
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1679504393. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
26,394
Distinct HCPCS
10
Medicare allowed
$614,568
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
J9263 |
Injection, oxaliplatin, 0.5 mg | 7,621 | 12 | $0 | |
J1453 |
Injection, fosaprepitant, 1 mg | 3,486 | 11 | $0 | |
J1100 |
Injection, dexamethasone sodium phosphate, 1 mg | 3,146 | 56 | $0 | |
J0897 |
Injection, denosumab, 1 mg | 2,742 | 23 | $23 | |
J2469 |
Injection, palonosetron hcl, 25 mcg | 1,129 | 40 | $1 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 1,087 | 381 | $138 | |
J2405 |
Injection, ondansetron hydrochloride, per 1 mg | 824 | 16 | $0 | |
96127 |
Assessment of emotional or behavioral problems | 738 | 429 | $5 | |
96413 |
Administration of chemotherapy into vein, 1 hour or less | 555 | 64 | $152 | |
96367 |
Infusion into a vein for therapy, prevention, or diagnosis, additional sequential infusion, 1 hour or less | 533 | 57 | $33 |
In context: peer comparison
Among 7 peers in this city , average services per provider: 438. This provider delivers 60× the peer median.Open Payments
Industry payments received
All-time total
$5,240
Transactions
147
Manufacturers
15
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| AstraZeneca Pharmaceuticals LP | 21 | $596.57 | |
| Janssen Biotech, Inc. | 12 | $359.40 | |
| ARRAY BIOPHARMA INC | 13 | $278.60 | |
| Merck Sharp & Dohme LLC | 10 | $273.44 | |
| Novartis Pharmaceuticals Corporation | 14 | $256.52 | |
| Lilly USA, LLC | 12 | $234.77 | |
| Takeda Pharmaceuticals U.S.A., Inc. | 6 | $201.50 | |
| PFIZER INC. | 13 | $180.95 | |
| GlaxoSmithKline, LLC. | 7 | $174.17 | |
| Incyte Corporation | 6 | $167.94 | |
| Gilead Sciences, Inc. | 6 | $155.85 | |
| Genentech USA, Inc. | 11 | $155.26 | |
| Ipsen Biopharmaceuticals, Inc | 5 | $146.73 | |
| Regeneron Healthcare Solutions, Inc. | 4 | $138.85 | |
| E.R. Squibb & Sons, L.L.C. | 7 | $137.99 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
2,767
Patients
715
Total drug cost
$6,648,313
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Dexamethasone Sodium Phosphate | Generic | 337 | 78 | $1,651 |
| Diphenhydramine Hcl | Generic | 330 | 77 | $876 |
| Famotidine (Famotidine/Pf) | Brand | 303 | 72 | $441 |
| Palonosetron Hcl | Generic | 267 | 63 | $21,379 |
| Anastrozole | Generic | 249 | 92 | $9,706 |
| Zoledronic Acid | Generic | 177 | 50 | $43,795 |
| Xtandi (Enzalutamide) | Brand | 158 | 20 | $2,277,231 |
| Procrit (Epoetin Alfa) | Brand | 157 | 55 | $372,392 |
| Tagrisso (Osimertinib Mesylate) | Brand | 144 | 17 | $2,564,128 |
| Zarxio (Filgrastim-Sndz) | Brand | 141 | 51 | $160,125 |
Hospital affiliations
Frequently asked questions
What is Dr. Weber Chen's medical specialty?
Dr. Weber Chen practices Hematology & Oncology Physician in Pasadena, CA.
Where does Dr. Weber Chen practice?
Dr. Weber Chen practices at 50 Alessandro Pl Ste 310, Pasadena, CA 911054000. Office phone: 6262880008.
What is Dr. Weber Chen's NPI?
Dr. Weber Chen's National Provider Identifier (NPI) is 1679504393, issued by NPPES.
Does Dr. Weber Chen accept Medicare assignment?
Yes. Dr. Weber Chen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Weber Chen commonly perform?
Top Medicare-reported procedures in 2023: Injection, oxaliplatin, 0.5 mg (HCPCS J9263); Injection, fosaprepitant, 1 mg (HCPCS J1453); Injection, dexamethasone sodium phosphate, 1 mg (HCPCS J1100). Source: CMS Medicare Physician & Other Practitioners file.