Doctor profile · Federal record

Dr. Roy Panares, MD

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

  • NPI 1285837229
  • Accepts Medicare
  • 25 yrs in practice
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
2151 N Harbor Blvd, Suite 2200
Fullerton, CA 92835
(714) 446-5900
fax (714) 446-5800
Mailing address
2151 N Harbor Blvd Ste 2200
Fullerton, CA 928353825

Credentials & registration

NPPES · NUCC
NPI registered
June 2007 — 19 yrs on file
Profile last updated
October 21, 2020
Year of graduation
2001 — 25 yrs since
Specialty taxonomy
207RH0003X — NUCC code
State license (1)
California #A82354

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1285837229. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,206
Distinct HCPCS
8
Medicare allowed
$139,641
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 415 261 $98
99214 Established patient office or other outpatient visit, 30-39 minutes 256 115 $138
99215 Established patient office or other outpatient visit, 40-54 minutes 218 50 $183
36415 Insertion of needle into vein for collection of blood sample 122 63 $8
99442 Telephone medical discussion with physician, 11-20 minutes 120 70 $98
99204 New patient office or other outpatient visit, 45-59 minutes 40 40 $180
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 24 12 $83
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 11 11 $137

In context: peer comparison

Among 3 peers in this city , average services per provider: 169. This provider delivers 7.1× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$1,851
Transactions
88
Manufacturers
15
Payer (manufacturer) Industry Txns Amount
Celgene Corporation 24 $311.08
Astellas Pharma US Inc 5 $255.55
AstraZeneca Pharmaceuticals LP 10 $249.45
ABBVIE INC. 11 $151.10
Eisai Inc. 6 $128.34
ARRAY BIOPHARMA INC 8 $112.32
Takeda Pharmaceuticals U.S.A., Inc. 5 $106.04
Janssen Biotech, Inc. 3 $85.07
PFIZER INC. 5 $73.46
Novartis Pharmaceuticals Corporation 3 $66.05
Daiichi Sankyo Inc. 2 $50.32
Merck Sharp & Dohme LLC 2 $45.16
GlaxoSmithKline, LLC. 2 $31.61
Boehringer Ingelheim Pharmaceuticals, Inc. 1 $30.27
Deciphera Pharmaceuticals Inc. 1 $28.66

By nature of payment

Food and Beverage
$1,685
Education
$166

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
726
Patients
229
Total drug cost
$1,841,495
Drug Type Claims Patients Total cost
Eliquis (Apixaban) Brand 105 30 $92,310
Hydroxyurea Generic 90 21 $3,399
Dexamethasone Generic 81 24 $1,213
Acyclovir Generic 68 19 $1,772
Revlimid (Lenalidomide) Brand 52 17 $937,726
Prochlorperazine Maleate Generic 49 37 $546
Anastrozole Generic 46 24 $1,161
Ondansetron Hcl Generic 41 21 $313
Lidocaine-Prilocaine (Lidocaine/Prilocaine) Brand 33 22 $502
Prednisone Generic 32 14 $197

Frequently asked questions

Auto-generated from federal data
What is Dr. Roy Panares's medical specialty?
Dr. Roy Panares practices Hematology & Oncology Physician in Fullerton, CA.
Where does Dr. Roy Panares practice?
Dr. Roy Panares practices at 2151 N Harbor Blvd, Fullerton, CA 92835. Office phone: 7144465900.
What is Dr. Roy Panares's NPI?
Dr. Roy Panares's National Provider Identifier (NPI) is 1285837229, issued by NPPES.
Does Dr. Roy Panares accept Medicare assignment?
Yes. Dr. Roy Panares accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Roy Panares commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99215). Source: CMS Medicare Physician & Other Practitioners file.