Doctor profile · Federal record

Dr. Ivan Namihas, M.D.

Radiation Oncology Physician (CMS: Radiation Oncology) · Loma Linda, CA

  • NPI 1285652495
  • Accepts Medicare
  • MIPS 76.4 / 100 · 2023
  • 42 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
11234 Anderson St
Loma Linda, CA 923542804
(909) 558-8311
Mailing address
Po Box 30969
Los Angeles, CA 900300969

Credentials & registration

NPPES · NUCC
NPI registered
July 2006 — 20 yrs on file
Profile last updated
July 8, 2007
Year of graduation
1984 — 42 yrs since
Specialty taxonomy
2085R0001X — NUCC code
State license (1)
California #G55984
Medicaid
CA #00G559840

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1285652495. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,649
Distinct HCPCS
10
Medicare allowed
$121,439
HCPCS Description Services Patients Avg allowed
G6002 Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy 729 43 $20
77427 Radiation treatment management, 5 treatment sessions 228 48 $192
77334 Design and construction of complex radiation treatment device 195 40 $62
77300 Calculation of radiation therapy dose 171 40 $34
77290 Obtaining data needed to develop the optimal radiation treatment, 3 or more treatment areas or any number of treatment areas where special treatment is involved 64 30 $84
99214 Established patient office or other outpatient visit, 30-39 minutes 46 38 $99
77263 Complex radiation therapy planning 41 39 $173
77295 3d radiation therapy planning 26 25 $232
99205 New patient office or other outpatient visit, 60-74 minutes 24 24 $184
77321 Special radiation therapy planning for delivery of external radiation 21 21 $50

In context: peer comparison

Among 3 peers in this city , average services per provider: 93. This provider delivers 18× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
72
Patients
26
Total drug cost
$1,294
Drug Type Claims Patients Total cost
Tamsulosin Hcl Generic 72 26 $1,294

Frequently asked questions

Auto-generated from federal data
What is Dr. Ivan Namihas's medical specialty?
Dr. Ivan Namihas practices Radiation Oncology Physician in Loma Linda, CA.
Where does Dr. Ivan Namihas practice?
Dr. Ivan Namihas practices at 11234 Anderson St, Loma Linda, CA 923542804. Office phone: 9095588311.
What is Dr. Ivan Namihas's NPI?
Dr. Ivan Namihas's National Provider Identifier (NPI) is 1285652495, issued by NPPES.
Does Dr. Ivan Namihas accept Medicare assignment?
Yes. Dr. Ivan Namihas accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Ivan Namihas commonly perform?
Top Medicare-reported procedures in 2023: Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy (HCPCS G6002); Radiation treatment management, 5 treatment sessions (HCPCS 77427); Design and construction of complex radiation treatment device (HCPCS 77334). Source: CMS Medicare Physician & Other Practitioners file.