Doctor profile · Federal record

Dr. Stellios Karnezis, M.D.

Diagnostic Radiology Physician (CMS: Diagnostic Radiology) · Los Angeles, CA

  • NPI 1205152956
  • Accepts Medicare
  • 18 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 6 locations .

NPPES Updated May 11, 2026
Primary practice
757 Westwood Plz Ste 1621
Los Angeles, CA 900953075
(310) 267-6708
fax (310) 267-3635
Additional location
100 UCLA Medical Plz Ste 100
Los Angeles, CA 900247000
(310) 301-6800
fax (310) 794-9035
Additional location
1245 16Th St Ste 110
Santa Monica, CA 904041240
(310) 301-6800
fax (310) 794-1428
Show 3 more locations
Additional location
23388 Mulholland Dr
Woodland Hills, CA 913642733
(818) 876-1050
fax (818) 876-1026
Additional location
335 N la Brea Ave
Los Angeles, CA 900362517
(323) 634-3850
fax (323) 938-9958
Additional location
4323 W Riverside Dr
Burbank, CA 915054044
(818) 556-2700
fax (818) 295-3450
Mailing address
5767 W Century Blvd, Suite 400
Los Angeles, CA 900455631

Credentials & registration

NPPES · NUCC
NPI registered
April 2010 — 16 yrs on file
Profile last updated
December 16, 2019
Year of graduation
2008 — 18 yrs since
Specialty taxonomy
2085R0202X — NUCC code
State license (1)
California #A112377
Medicaid
CA #0A1123770

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1205152956. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
12,451
Distinct HCPCS
10
Medicare allowed
$198,846
HCPCS Description Services Patients Avg allowed
Q9967 Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml 4,543 45 $0
A9575 Injection, gadoterate meglumine, 0.1 ml 4,450 25 $0
70450 Ct scan head or brain without contrast 582 558 $41
71045 X-ray of chest, 1 view 544 516 $9
72125 Ct scan of upper spine without contrast 229 223 $49
74177 Ct scan of abdomen and pelvis with contrast 164 161 $90
74176 Ct scan of abdomen and pelvis without contrast 138 137 $87
70496 Ct scan of blood vessels of head with contrast 123 122 $87
70498 Ct scan of blood vessels of neck with contrast 120 119 $83
71275 Ct scan of blood vessels of chest with contrast 101 100 $89

In context: peer comparison

Among 177 peers in this city , average services per provider: 296. This provider delivers 42× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Stellios Karnezis's medical specialty?
Dr. Stellios Karnezis practices Diagnostic Radiology Physician in Los Angeles, CA.
Where does Dr. Stellios Karnezis practice?
Dr. Stellios Karnezis practices at 757 Westwood Plz Ste 1621, Los Angeles, CA 900953075. Office phone: 3102676708.
What is Dr. Stellios Karnezis's NPI?
Dr. Stellios Karnezis's National Provider Identifier (NPI) is 1205152956, issued by NPPES.
Does Dr. Stellios Karnezis accept Medicare assignment?
Yes. Dr. Stellios Karnezis accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Stellios Karnezis commonly perform?
Top Medicare-reported procedures in 2023: Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml (HCPCS Q9967); Injection, gadoterate meglumine, 0.1 ml (HCPCS A9575); Ct scan head or brain without contrast (HCPCS 70450). Source: CMS Medicare Physician & Other Practitioners file.