Doctor profile · Federal record
Dr. Amitabha Mazumder, M.D.
Hematology & Oncology Physician (CMS: Medical Oncology) · Specialist · Downey, CA
- NPI 1881682318
- Accepts Medicare
- 49 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 3 locations .
- Primary practice
-
11480 Brookshire Ave Ste 309
Downey, CA 90241
(562) 869-1201
fax (562) 869-1281 - Additional location
-
160 E 34Th St, Fl 7
New York, NY 100164744
(212) 731-5196
fax (212) 731-5540 - Additional location
-
1510 S Central Ave Ste 240
Glendale, CA 912042570
(818) 334-5425 - Mailing address
-
18000 Studebaker RD Ste 800
Cerritos, CA 907032671
Credentials & registration
- NPI registered
- October 2005 — 21 yrs on file
- Profile last updated
- August 14, 2018
- Year of graduation
- 1977 — 49 yrs since
- Specialty taxonomy
- 207RH0003X — NUCC code
- State licenses (2)
- California #G56488 · New York #209802
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1881682318. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
275
Distinct HCPCS
4
Medicare allowed
$35,118
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 110 | 62 | $141 | |
99443 |
Telephone medical discussion with physician, 21-30 minutes | 93 | 54 | $125 | |
M0010 |
Enhancing oncology model (eom) monthly enhanced oncology services (meos) payment for eom enhanced services | 55 | 13 | $90 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 17 | 17 | $182 |
In context: peer comparison
Among 5 peers in this city , average services per provider: 137. This provider delivers 2.0× the peer median.Open Payments
Industry payments received
All-time total
$5,998
Transactions
143
Manufacturers
15
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Novartis Pharmaceuticals Corporation | 20 | $1,142.19 | |
| E.R. Squibb & Sons, L.L.C. | 8 | $986.09 | |
| AstraZeneca Pharmaceuticals LP | 16 | $333.28 | |
| Merck Sharp & Dohme LLC | 11 | $286.58 | |
| PFIZER INC. | 17 | $281.18 | |
| Janssen Biotech, Inc. | 12 | $233.23 | |
| Takeda Pharmaceuticals U.S.A., Inc. | 7 | $177.59 | |
| SOBI, INC | 10 | $162.38 | |
| Gilead Sciences, Inc. | 7 | $161.86 | |
| ABBVIE INC. | 9 | $151.23 | |
| Celgene Corporation | 9 | $151.19 | |
| GENZYME CORPORATION | 4 | $137.27 | |
| Karyopharm Therapeutics Inc. | 4 | $117.86 | |
| TAIHO ONCOLOGY, INC. | 4 | $106.74 | |
| Lilly USA, LLC | 5 | $100.16 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
765
Patients
146
Total drug cost
$1,276,692
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Anastrozole | Generic | 158 | 41 | $5,154 |
| Prednisone | Generic | 105 | 21 | $627 |
| Alendronate Sodium | Generic | 62 | 18 | $774 |
| Dexamethasone | Generic | 56 | 12 | $894 |
| Bicalutamide | Generic | 47 | 11 | $1,159 |
| Ninlaro (Ixazomib Citrate) | Brand | 43 | 0 | $608,941 |
| Gabapentin | Generic | 42 | 18 | $854 |
| Pamidronate Disodium | Generic | 38 | 0 | $1,825 |
| Hydroxyurea | Generic | 36 | 0 | $1,077 |
| Exemestane | Generic | 34 | 0 | $7,070 |
Frequently asked questions
What is Dr. Amitabha Mazumder's medical specialty?
Dr. Amitabha Mazumder practices Hematology & Oncology Physician in Downey, CA.
Where does Dr. Amitabha Mazumder practice?
Dr. Amitabha Mazumder practices at 11480 Brookshire Ave Ste 309, Downey, CA 90241. Office phone: 5628691201.
What is Dr. Amitabha Mazumder's NPI?
Dr. Amitabha Mazumder's National Provider Identifier (NPI) is 1881682318, issued by NPPES.
Does Dr. Amitabha Mazumder accept Medicare assignment?
Yes. Dr. Amitabha Mazumder accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Amitabha Mazumder commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Telephone medical discussion with physician (HCPCS 99443); Enhancing oncology model (eom) monthly enhanced oncology services (meos) payment for eom enhanced services (HCPCS M0010). Source: CMS Medicare Physician & Other Practitioners file.