Doctor profile · Federal record

Dr. Stella Onyi, D.O.

Diagnostic Radiology Physician (CMS: Diagnostic Radiology) · Hemet, CA

  • NPI 1881057750
  • Accepts Medicare
  • 10 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
1117 E Devonshire Ave
Hemet, CA 925433083
(951) 925-6309
fax (951) 791-4380
Additional location
19111 Town Center Dr
Apple Valley, CA 923088989
(760) 699-2900
Mailing address
19111 Town Center Dr
Apple Valley, CA 923088989

Credentials & registration

NPPES · NUCC
NPI registered
March 2016 — 10 yrs on file
Profile last updated
January 17, 2024
Year of graduation
2016 — 10 yrs since
Specialty taxonomy
2085R0202X — NUCC code
State license (1)
California #20A16545

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1881057750. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
664
Distinct HCPCS
10
Medicare allowed
$20,010
HCPCS Description Services Patients Avg allowed
71045 X-ray of chest, 1 view 316 232 $9
70450 Ct scan head or brain without contrast 88 86 $41
74176 Ct scan of abdomen and pelvis without contrast 55 53 $85
74177 Ct scan of abdomen and pelvis with contrast 39 38 $89
72125 Ct scan of upper spine without contrast 22 22 $48
93970 Ultrasound study of arm or leg veins with compression and maneuvers 20 19 $34
71260 Ct scan of chest with contrast 19 17 $55
76770 Complete ultrasound scan behind abdominal cavity 19 19 $35
76705 Limited ultrasound scan of abdomen 18 18 $28
71250 Ct scan of chest without contrast 17 17 $52

In context: peer comparison

Among 9 peers in this city , average services per provider: 76. This provider delivers 8.7× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Stella Onyi's medical specialty?
Dr. Stella Onyi practices Diagnostic Radiology Physician in Hemet, CA.
Where does Dr. Stella Onyi practice?
Dr. Stella Onyi practices at 1117 E Devonshire Ave, Hemet, CA 925433083. Office phone: 9519256309.
What is Dr. Stella Onyi's NPI?
Dr. Stella Onyi's National Provider Identifier (NPI) is 1881057750, issued by NPPES.
Does Dr. Stella Onyi accept Medicare assignment?
Yes. Dr. Stella Onyi accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Stella Onyi commonly perform?
Top Medicare-reported procedures in 2023: X-ray of chest, 1 view (HCPCS 71045); Ct scan head or brain without contrast (HCPCS 70450); Ct scan of abdomen and pelvis without contrast (HCPCS 74176). Source: CMS Medicare Physician & Other Practitioners file.