Doctor profile · Federal record

Dr. Roy Vongtama, M.D.

Radiation Oncology Physician (CMS: Radiation Oncology) · Los Angeles, CA

  • NPI 1083837058
  • Accepts Medicare
  • MIPS 67.0 / 100 · 2023
  • 26 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
200 Medical Plaza, B265
Los Angeles, CA 90095
(310) 825-0128
fax (310) 794-9795
Mailing address
File #2939
Los Angels, CA 90074

Credentials & registration

NPPES · NUCC
NPI registered
April 2007 — 19 yrs on file
Profile last updated
July 8, 2007
Year of graduation
2000 — 26 yrs since
Specialty taxonomy
2085R0001X — NUCC code
State license (1)
California #A78334

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1083837058. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
93
Distinct HCPCS
3
Medicare allowed
$6,784
HCPCS Description Services Patients Avg allowed
77014 Ct guidance for insertion of radiation therapy fields 62 26 $49
77014 Ct guidance for insertion of radiation therapy fields 17 13 $49
77427 Radiation treatment management, 5 treatment sessions 14 13 $209

In context: peer comparison

Among 26 peers in Los Angeles Radiation Oncology Physician, average services per provider: 83. This provider delivers 1.1× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Roy Vongtama's medical specialty?
Dr. Roy Vongtama practices Radiation Oncology Physician in Los Angeles, CA.
Where does Dr. Roy Vongtama practice?
Dr. Roy Vongtama practices at 200 Medical Plaza, Los Angeles, CA 90095. Office phone: 3108250128.
What is Dr. Roy Vongtama's NPI?
Dr. Roy Vongtama's National Provider Identifier (NPI) is 1083837058, issued by NPPES.
Does Dr. Roy Vongtama accept Medicare assignment?
Yes. Dr. Roy Vongtama accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Roy Vongtama commonly perform?
Top Medicare-reported procedures in 2023: Ct guidance for insertion of radiation therapy fields (HCPCS 77014); Ct guidance for insertion of radiation therapy fields (HCPCS 77014); Radiation treatment management, 5 treatment sessions (HCPCS 77427). Source: CMS Medicare Physician & Other Practitioners file.