Doctor profile · Federal record

Dr. Michael del Rosario, M.D.

Hematology & Oncology Physician (CMS: Hematology/Oncology) · Internal Medicine Physician · Lakewood, CA

  • NPI 1891164307
  • Accepts Medicare
  • MIPS 94.2 / 100 · 2023
  • 11 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
3300 E South St Ste 304
Lakewood, CA 908054594
(562) 232-0550

Credentials & registration

NPPES · NUCC
NPI registered
September 2015 — 11 yrs on file
Profile last updated
June 5, 2024
Year of graduation
2015 — 11 yrs since
Specialty taxonomy
207RH0003X — NUCC code
State license (1)
California #A151675

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1891164307. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
470
Distinct HCPCS
4
Medicare allowed
$66,101
HCPCS Description Services Patients Avg allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 290 84 $125
99214 Established patient office or other outpatient visit, 30-39 minutes 90 41 $128
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 54 50 $182
99205 New patient office or other outpatient visit, 60-74 minutes 36 36 $236

In context: peer comparison

Among 5 peers in Lakewood Hematology & Oncology Physician, average services per provider: 359. This provider delivers 1.3× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$2,362
Transactions
61
Manufacturers
15
Payer (manufacturer) Industry Txns Amount
Merck Sharp & Dohme LLC 7 $171.78
Eisai INC. 7 $153.36
AstraZeneca Pharmaceuticals Lp 5 $118.60
Daiichi Sankyo INC. 4 $107.39
Alexion Pharmaceuticals, INC. 4 $105.05
Novartis Pharmaceuticals Corporation 4 $102.60
Janssen Biotech, INC. 4 $100.52
Gilead Sciences, INC. 4 $93.34
Takeda Pharmaceuticals U.S.A., INC. 3 $92.91
Pfizer INC. 4 $91.64
Sobi, INC 4 $90.63
Emd Serono, INC. 2 $82.62
BeiGene USA, INC. 3 $80.75
Stemline Therapeutics INC. 3 $78.73
Taiho Oncology, INC. 3 $74.73

By nature of payment

Food and Beverage
$2,362

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,041
Patients
313
Total drug cost
$2,094,248
Drug Type Claims Patients Total cost
Abiraterone Acetate Generic 189 30 $843,576
Prednisone Generic 142 38 $1,361
Letrozole Generic 117 46 $6,696
Ondansetron Hcl (Ondansetron Hcl/Pf) Brand 68 26 $94
Famotidine (Famotidine/Pf) Brand 65 23 $82
Diphenhydramine Hcl Generic 64 23 $157
Anastrozole Generic 55 21 $2,468
Ondansetron Odt (Ondansetron) Brand 50 38 $874
Dexamethasone Sodium Phosphate Generic 49 25 $166
Lupron Depot (Leuprolide Acetate) Brand 49 18 $286,210

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Michael del Rosario's medical specialty?
Dr. Michael del Rosario practices Hematology & Oncology Physician in Lakewood, CA.
Where does Dr. Michael del Rosario practice?
Dr. Michael del Rosario practices at 3300 E South St Ste 304, Lakewood, CA 908054594. Office phone: 5622320550.
What is Dr. Michael del Rosario's NPI?
Dr. Michael del Rosario's National Provider Identifier (NPI) is 1891164307, issued by NPPES.
Does Dr. Michael del Rosario accept Medicare assignment?
Yes. Dr. Michael del Rosario accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Michael del Rosario commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Established patient office or other outpatient visit (HCPCS 99214); Initial hospital care with moderate level of medical decision making (HCPCS 99223). Source: CMS Medicare Physician & Other Practitioners file.