Doctor profile · Federal record

Dr. John Thropay, M.D.

Radiation Oncology Physician · Montebello, CA

  • NPI 1427128073
  • 20 yrs on file
  • Male
  • Solo practice
  • Sanctions on record

Practice & contact

Operates at 3 locations .

NPPES Updated May 11, 2026
Primary practice
120 W Beverly Blvd
Montebello, CA 906404305
(323) 724-8780
fax (323) 728-9936
Additional location
1041 E Yorba Linda Blvd Ste 100
Placentia, CA 928703762
(647) 444-1164
fax (657) 208-9759
Additional location
80 S Palm Ave
Alhambra, CA 918013101
(626) 571-6729

Credentials & registration

NPPES · NUCC
NPI registered
November 2006 — 20 yrs on file
Profile last updated
January 29, 2024
Specialty taxonomy
2085R0001X — NUCC code
State license (1)
California #G32178

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

1 exclusion record on file

Always verify with the official OIG LEIE.
  • 1128a1 — excluded Aug 20, 2025 / reinstated Nov 30, -0001

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
447
Distinct HCPCS
6
Medicare allowed
$146,502
HCPCS Description Services Patients Avg allowed
G6015 Intensity modulated treatment delivery, single or multiple fields/arcs,via narrow spatially and temporally modulated beams, binary, dynamic mlc, per treatment session 224 11 $425
77300 Calculation of radiation therapy dose 105 13 $74
77336 Continuing radiation therapy consultation per week 51 12 $101
77427 Radiation treatment management, 5 treatment sessions 42 11 $205
77301 High precision radiation therapy planning 13 11 $2,124
77263 Complex radiation therapy planning 12 11 $180

In context: peer comparison

Among 1 peers in Montebello Radiation Oncology Physician, average services per provider: 74. This provider delivers 6.0× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$27
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Novocure INC. 1 $27.17

By nature of payment

Food and Beverage
$27

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
169
Patients
67
Total drug cost
$2,402
Drug Type Claims Patients Total cost
Tamsulosin Hcl Generic 77 29 $1,066
Ciprofloxacin Hcl Generic 28 27 $42
Bicalutamide Generic 20 11 $664
Tramadol Hcl Generic 20 0 $205
Ibuprofen Generic 13 0 $241
Ssd (Silver Sulfadiazine) Brand 11 0 $184

Frequently asked questions

Auto-generated from federal data
What is Dr. John Thropay's medical specialty?
Dr. John Thropay practices Radiation Oncology Physician in Montebello, CA.
Where does Dr. John Thropay practice?
Dr. John Thropay practices at 120 W Beverly Blvd, Montebello, CA 906404305. Office phone: 3237248780.
What is Dr. John Thropay's NPI?
Dr. John Thropay's National Provider Identifier (NPI) is 1427128073, issued by NPPES.
What procedures does Dr. John Thropay commonly perform?
Top Medicare-reported procedures in 2023: Intensity modulated treatment delivery, single or multiple fields/arcs,via narrow spatially and temporally modulated beams, binary, dynamic mlc (HCPCS G6015); Calculation of radiation therapy dose (HCPCS 77300); Continuing radiation therapy consultation per week (HCPCS 77336). Source: CMS Medicare Physician & Other Practitioners file.