Internal Medicine, Hematology & Oncology · Pasadena, CA
NPI
1679504393
Since 2006
Specialty
Internal Medicine, Hematology & Oncology
Code 207RH0003X
Group practices
1
Medicare group memberships
Hospitals
5
Hospital affiliations
50 Alessandro Pl Ste 310
Pasadena, CA, 91105
Phone (626) 288-0008
Groups this clinician bills Medicare through
Medicare paid, 2024
$3.3M
157,297 services
Medicare patients, 2024
753
Average age 76
Drug cost, 2024
$12.8M
2,580 prescriptions
Company payments, 2025
$6,268
From 43 companies
Procedures and visits billed to Original Medicare, 2024
In 2024, the most common Medicare service billed by Weber Chen was code J9263 (injection, oxaliplatin, 0.5 mg), 19,300 times for 12 patients. In total Weber Chen billed 157,297 services in 108 codes, and Medicare paid $3.3M.
| Code |
|---|
Official US government data: the national provider registry and Medicare enrollment records, linked by NPI. Last update of this record: 2021-07-21.
| Setting |
|---|
| Services |
|---|
| Patients |
|---|
| Paid per service |
|---|
| Medicare paid |
|---|
| J9263 Injection, oxaliplatin, 0.5 mg | Office | 19,300 | 12 | $0.06 | $1,078 |
| J9271 Injection, pembrolizumab, 1 mg | Office | 16,200 | 14 | $44.78 | $725K |
| J0897 Injection, denosumab, 1 mg | Office | 9,581 | 38 | $20.35 | $195K |
| J1453 Injection, fosaprepitant, 1 mg | Office | 8,106 | 11 | $0.11 | $897 |
| J1100 Injection, dexamethasone sodium phosphate, 1 mg | Office | 6,886 | 57 | $0.09 | $620 |
| Q5129 Injection, bevacizumab-adcd (vegzelma), biosimilar, 10 mg | Office | 6,350 | 13 | $50.13 | $318K |
| J2405 Injection, ondansetron hydrochloride, per 1 mg | Office | 1,832 | 27 | $0.07 | $136 |
| J2469 Injection, palonosetron hcl, 25 mcg | Office | 1,338 | 22 | $0.68 | $914 |
| 96127 Behavioral Health Services | Office | 1,156 | 553 | $3.46 | $4,004 |
| 99214 Office E&M - Established | Office | 907 | 425 | $98.08 | $89K |
| 99233 Hospital E&M - Subsequent | Facility | 801 | 194 | $97.35 | $78K |
| 99215 Office E&M - Established | Office | 700 | 304 | $144.30 | $101K |
| 96372 Injection Administration | Office | 673 | 89 | $12.06 | $8,116 |
| 96413 Chemotherapy Administration | Office | 585 | 71 | $114.19 | $67K |
| Q5101 Injection, filgrastim-sndz, biosimilar, (zarxio), 1 microgram | Office | 485 | 26 | $0.16 | $76.88 |
By year: 2022 $594K for 27,798 services; 2023 $1.6M for 70,561 services; 2024 $3.3M for 157,297 services.
Lab tests billed to Medicare, 2024
| Test code | Tests | Patients | Paid per test | Medicare paid |
|---|---|---|---|---|
| 85025 Blood Count | 12 | 11 | $7.61 | $91.33 |
| 80053 Clinical Chemistry | 11 | 11 | $10.35 | $114 |
Medicare prescription drug claims, 2024
In 2024, the drug Weber Chen prescribed most often to Medicare patients was Procrit (Epoetin Alfa), with 147 prescriptions and refills. In total Weber Chen wrote 2,580 Medicare prescriptions that cost $12.8M.
| Drug | Claims | 30-day fills | Patients | Cost |
|---|---|---|---|---|
| Procrit Epoetin Alfa | 147 | 147 | 49 | $313K |
| Anastrozole Generic | 138 | 325 | 43 | $2,351 |
| Xtandi Enzalutamide | 127 | 127 | 17 | $1.7M |
| Tagrisso Osimertinib Mesylate | 124 | 124 | 13 | $1.9M |
| Zarxio Filgrastim-Sndz | 113 | 113 | 39 | $119K |
| Revlimid Lenalidomide | 95 | 95 | 12 | $1.6M |
| Tamoxifen Citrate Generic | 89 | 198 | 28 | $2,337 |
| Lupron Depot Leuprolide Acetate | 79 | 173 | 19 | $347K |
| Xgeva Denosumab | 65 | 92 | 16 | $207K |
| Letrozole Generic | 58 | 113 | 19 | $911 |
| Alendronate Sodium Generic | 57 | 133 | 18 | $515 |
| Gabapentin Generic | 54 | 55 | 21 | $535 |
| Fulvestrant Generic | 53 | 53 | Under 11 | $42K |
| Eliquis Apixaban | 53 | 58 | 15 | $31K |
| Dexamethasone Generic | 50 | 74 | 30 | $912 |
Brand drugs: 1,377 claims; generic drugs: 1,203 claims; opioid claims: 71.
Money and other things of value reported by the companies
In 2025, drug and medical device companies paid Weber Chen $6,268 ($6,268 in general payments such as food, travel and fees) from 43 companies. The largest payer was Janssen Biotech, Inc. with $1,142.
| Company | Payments | Amount |
|---|---|---|
| Janssen Biotech, Inc. JNJ | 31 | $1,142 |
| AstraZeneca Pharmaceuticals LP AZN | 31 | $827 |
| Pfizer Inc. PFE | 22 | $452 |
| Array Biopharma Inc PFE | 18 | $418 |
| Gilead Sciences, Inc. GILD | 14 | $287 |
| Abbvie Inc. ABBV | 4 | $213 |
| E.R. Squibb & Sons, L.L.C. BMY | 13 | $197 |
| Novartis Pharmaceuticals Corporation NVS | 11 | $194 |
| Merck Sharp & Dohme LLC MRK | 6 | $164 |
| Eisai Inc. 4523.T | 7 | $164 |
Official US government data on Original Medicare services, Medicare prescription drug plans and the payments drug and device companies must report. Services with fewer than 11 patients and drugs with fewer than 11 claims are not published. Procedure codes are shown by number with their public category.