Doctor profile · Federal record

Dr. Ronald Tang, DO

Hematology & Oncology Physician (CMS: Hematology/Oncology) · Pasadena, CA

  • NPI 1609022383
  • Accepts Medicare
  • MIPS 96.9 / 100 · 2023
  • 18 yrs in practice
  • Male
  • Solo practice
  • No sanctions

Practice & contact

Operates at 4 locations .

NPPES Updated May 11, 2026
Primary practice
50 Alessandro Pl Ste 310
Pasadena, CA 911054000
(626) 288-0008
fax (866) 741-4630
Additional location
18300 Roscoe Blvd, Leavey Cancer Center
Northridge, CA 913254105
(818) 885-5431
Additional location
433 N 4Th St
Montebello, CA 906404311
(323) 721-1388
fax (323) 248-7546
Show 1 more location
Additional location
6850 Sepulveda Blvd Ste 211
Van Nuys, CA 91405
(818) 782-4104
fax (818) 475-1823
Mailing address
541 W Colorado St Ste 205
Glendale, CA 912043640

Credentials & registration

NPPES · NUCC
NPI registered
August 2008 — 18 yrs on file
Profile last updated
July 26, 2021
Year of graduation
2008 — 18 yrs since
Specialty taxonomy
207RH0003X — NUCC code
State license (1)
California #20A11008

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1609022383. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
649
Distinct HCPCS
8
Medicare allowed
$82,311
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 172 59 $139
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 123 115 $182
96127 Assessment of emotional or behavioral problems 94 59 $5
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 80 49 $125
99213 Established patient office or other outpatient visit, 20-29 minutes 74 43 $98
96413 Administration of chemotherapy into vein, 1 hour or less 71 13 $152
99215 Established patient office or other outpatient visit, 40-54 minutes 19 15 $194
99205 New patient office or other outpatient visit, 60-74 minutes 16 16 $237

In context: peer comparison

Among 7 peers in Pasadena Hematology & Oncology Physician, average services per provider: 438. This provider delivers 1.5× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$10,991
Transactions
155
Manufacturers
15
Payer (manufacturer) Industry Txns Amount
Adc Therapeutics America, INC. 6 $2,473.89
BeiGene USA, INC. 6 $1,492.56
Novartis Pharmaceuticals Corporation 27 $1,458.18
Pfizer INC. 9 $1,228.91
Merck Sharp & Dohme LLC 14 $345.29
AstraZeneca Pharmaceuticals Lp 10 $317.43
Gilead Sciences, INC. 12 $259.24
Exelixis INC. 12 $258.33
Daiichi Sankyo INC. 10 $252.86
Genentech USA, INC. 10 $225.47
Eisai INC. 10 $181.34
Incyte Corporation 8 $171.78
Regeneron Healthcare Solutions, INC. 5 $170.55
E.R. Squibb & Sons, L.L.C. 10 $169.71
Ipsen Biopharmaceuticals, INC 6 $154.33

By nature of payment

Food and Beverage
$5,118
Consulting Fee
$4,775
Long Term Medical Supply or Device Loan
$1,098

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
786
Patients
143
Total drug cost
$2,343,399
Drug Type Claims Patients Total cost
Anastrozole Generic 90 33 $2,988
Dexamethasone Sodium Phosphate Generic 89 23 $622
Diphenhydramine Hcl Generic 89 23 $325
Famotidine (Famotidine/Pf) Brand 73 19 $141
Palonosetron Hcl Generic 60 14 $4,194
Lupron Depot (Leuprolide Acetate) Brand 50 18 $286,206
Kanjinti (Trastuzumab-Anns) Brand 49 0 $198,119
Letrozole Generic 48 13 $1,990
Imbruvica (Ibrutinib) Brand 46 0 $694,240
Zarxio (Filgrastim-Sndz) Brand 35 0 $52,866

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Ronald Tang's medical specialty?
Dr. Ronald Tang practices Hematology & Oncology Physician in Pasadena, CA.
Where does Dr. Ronald Tang practice?
Dr. Ronald Tang practices at 50 Alessandro Pl Ste 310, Pasadena, CA 911054000. Office phone: 6262880008.
What is Dr. Ronald Tang's NPI?
Dr. Ronald Tang's National Provider Identifier (NPI) is 1609022383, issued by NPPES.
Does Dr. Ronald Tang accept Medicare assignment?
Yes. Dr. Ronald Tang accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Ronald Tang commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Initial hospital care with moderate level of medical decision making (HCPCS 99223); Assessment of emotional or behavioral problems (HCPCS 96127). Source: CMS Medicare Physician & Other Practitioners file.