Doctor profile · Federal record
Dr. Michael Rosenzweig, M.D.
Hematology & Oncology Physician (CMS: Hematology/Oncology) · Duarte, CA
- NPI 1164470126
- Accepts Medicare
- MIPS 91.9 / 100 · 2023
- 25 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1500 Duarte RD
Duarte, CA 910103012
(626) 256-4673
fax (626) 301-8256 - Mailing address
-
1333S Mayflower Ave, 2Nd Floor
Monrovia, CA 910164066
Credentials & registration
- NPI registered
- May 2006 — 20 yrs on file
- Profile last updated
- August 17, 2015
- Year of graduation
- 2001 — 25 yrs since
- Specialty taxonomy
- 207RH0003X — NUCC code
- State license (1)
- California #A118217
- Medicaid
- MA #2076110
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1164470126. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
689
Distinct HCPCS
8
Medicare allowed
$89,661
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 222 | 95 | $151 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 169 | 34 | $125 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 143 | 85 | $103 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 69 | 29 | $151 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 34 | 24 | $103 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 20 | 20 | $191 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 20 | 17 | $83 | |
99442 |
Telephone medical discussion with physician, 11-20 minutes | 12 | 12 | $69 |
In context: peer comparison
Among 3 peers in Duarte Hematology & Oncology Physician, average services per provider: 94. This provider delivers 7.3× the peer median.Open Payments
Industry payments received
All-time total
$344
Transactions
5
Manufacturers
2
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Janssen Biotech, INC. | 3 | $291.57 | |
| Alnylam Pharmaceuticals INC. | 2 | $52.79 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
312
Patients
69
Total drug cost
$3,990,158
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Revlimid (Lenalidomide) | Brand | 110 | 19 | $2,002,072 |
| Acyclovir | Generic | 53 | 19 | $849 |
| Vyndamax (Tafamidis) | Brand | 44 | 0 | $981,024 |
| Pomalyst (Pomalidomide) | Brand | 38 | 0 | $833,423 |
| Dexamethasone | Generic | 30 | 19 | $441 |
| Ondansetron Hcl | Generic | 14 | 12 | $180 |
| Lenalidomide | Generic | 12 | 0 | $171,985 |
| Prochlorperazine Maleate | Generic | 11 | 0 | $184 |
Frequently asked questions
What is Dr. Michael Rosenzweig's medical specialty?
Dr. Michael Rosenzweig practices Hematology & Oncology Physician in Duarte, CA.
Where does Dr. Michael Rosenzweig practice?
Dr. Michael Rosenzweig practices at 1500 Duarte RD, Duarte, CA 910103012. Office phone: 6262564673.
What is Dr. Michael Rosenzweig's NPI?
Dr. Michael Rosenzweig's National Provider Identifier (NPI) is 1164470126, issued by NPPES.
Does Dr. Michael Rosenzweig accept Medicare assignment?
Yes. Dr. Michael Rosenzweig accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Michael Rosenzweig commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99215); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.