Dr. Stella Chioma Onyi, DO
- Medicare services, 2024
- 5,145
- Medicare patients, 2024
- 3,743
- Publications
- 4
- MIPS score, 2024
- 75
- Hospital affiliations
- 5
- Practice address
- 1117 East Devonshire, Hemet, CA 92543
- Practice phone
- Call (951) 652-2811
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Onyi's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Stella Chioma Onyi is a diagnostic radiologist in Hemet, California
Dr. Onyi practices at Hemet Global Medical Center in Hemet, California, part of KPC Healthcare.
Dr. Onyi's NPI, 1881057750, was assigned on March 30, 2016. Dr. Onyi graduated from Rostov State Medical University in 2016. Dr. Onyi's California license number on file is 20A16545.
- NPI
- 1881057750NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7810393311
- NPI enumeration date
- March 30, 2016
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (951) 652-2811
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 36
- Medical school graduation
- 2016
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Stella Chioma Onyi practices at Hemet Global Medical Center in Hemet, California
Dr. Onyi's primary practice is Hemet Global Medical Center, at 1117 East Devonshire, Hemet, CA 92543 in Riverside County. The practice phone is (951) 652-2811.
- Hemet Global Medical Center1117 East Devonshire, Hemet, CA 92543 · Riverside CountyPhone(951) 652-2811
Source: Dmand AI Affiliation Data
Dr. Stella Chioma Onyi is affiliated with 7 sites of care and 6 medical groups
Dr. Onyi's primary practice is Hemet Global Medical Center in Hemet, California, part of KPC Healthcare. Dr. Onyi is also affiliated with Shasta Regional Medical Center. The medical group on file is Seven Star Medical Group. Dmand AI also links Dr. Onyi to 3 more hospitals, 5 medical groups and 2 group practices and clinics, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Stella Chioma Onyi's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Onyi practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Hemet Global Medical Center | Available with a free account |
| +6 more sites and 5 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Stella Chioma Onyi is one of 4,096 diagnostic radiologists in California
Diagnostic radiology is Dr. Onyi's primary specialty in the NPI Registry, under taxonomy code 2085R0202X. Dr. Onyi is board certified in diagnostic radiology by the American Board of Radiology. Dmand AI has Dr. Onyi's licenses on file in 3 states: California, Illinois and Florida.
Specialties and state licenses
- Diagnostic radiology, CaliforniaPrimary
- Illinois license
- Florida license
Diagnostic radiologists near Dr. Onyi
Counts of diagnostic radiologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Stella Chioma Onyi billed Medicare for 5,145 services in 2024
CMS data shows 5,145 Medicare services from Dr. Onyi across 66 procedure codes in 2024, for 3,743 Medicare patients. Medicare paid $128,968 for them.
Dr. Onyi's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Imaging
- 2023: 6312024: 4,898676%
- Tests and treatments
- 2023: 332024: 247648%
Where Dr. Onyi's Medicare services took place, 2024
- In an office451%
- In a facility5,10099%
Dr. Onyi compared with the California median for diagnostic radiologists, 2024
- Dr. Onyi
- California median
- Medicare services
- 5,145vs 2,2812.3 times
- Medicare patients
- 3,743vs 1,3462.8 times
Medians across 3,734 diagnostic radiologists in California with Dmand AI profiles that report each measure.
Dr. Onyi's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Onyi?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Onyi and other diagnostic radiologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Stella Chioma Onyi treated 3,743 Medicare patients in 2024, average age 73
CMS counts 3,743 Medicare patients who saw Dr. Onyi in 2024. The largest group is 65 to 74, with 1,397 patients. 75% of them have high blood pressure, and 74% have high cholesterol. 49% are also on Medicaid. Their average risk score is 1.95, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Onyi's median patient age at 54, with 56% women.
Dr. Onyi's Medicare patients by age, 2024
Dr. Onyi's Medicare patients by sex, 2024
- Women2,17458%
- Men1,56942%
Chronic conditions among Dr. Onyi's Medicare patients, 2024
- High blood pressure75%
- High cholesterol74%
- Arthritis50%
- Diabetes44%
- Heart failure40%
- Ischemic heart disease37%
- COPD36%
- Chronic kidney disease36%
Share of Medicare patients with each condition. A patient can have several.
Dr. Onyi's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 54
Patient panel by sex, all payers
- Women56%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Stella Chioma Onyi scored 75 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 75 out of 100 for Dr. Onyi for performance year 2024, reported as part of a group. Dr. Onyi accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
- MIPS final score, 2024
- 75 of 100
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Stella Chioma Onyi has 4 publications on record
Dmand AI links 4 papers to Dr. Onyi, published from 2013 to 2023. Dr. Onyi has published most often in Cureus. Dr. Onyi's most frequent co-authors are Chukwuemeka Anthony Umeh, MD, Mehmet Sait Albayram, MD and Rakesh Chander Gupta, MD.
Dr. Onyi's papers by year, 2013 to 2023
Dr. Onyi's most frequent co-authors
- Chukwuemeka Anthony Umeh, MD3 shared papers
- Mehmet Sait Albayram, MD1 shared paper
- Rakesh Chander Gupta, MD1 shared paper
Recent publications by Dr. Onyi
See who Dr. Onyi researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Onyi works with, so you can find a warm path to the right diagnostic radiologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Stella Chioma Onyi received $18 in industry payments in 2018
CMS Open Payments shows 1 general payment to Dr. Onyi from 1 drug or device company in 2018. Food and beverage make up the largest share, 100% of the total. Abbott Laboratories paid the most, $18.
Companies that paid Dr. Onyi the most, 2018 to 2018
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Stella Chioma Onyi graduated from Rostov State Medical University
Dr. Onyi graduated from Rostov State Medical University in 2016.
- Medical school
- Board certified in diagnostic radiology
Source: Dmand AI Professional Profile Data
Dr. Stella Chioma Onyi accepts plans from 2 insurance carriers
Dr. Onyi is in network with 2 carriers, including Blue Cross Blue Shield of Michigan and CMS Medicare. Medicare plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Blue Cross Blue Shield of Michigan
- CMS Medicare
Plan types Dr. Onyi accepts, by number of carriers
- Medicare1
- PPO1
Source: Dmand AI Insurance Network Data
Sources for Dr. Stella Chioma Onyi's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Stella Chioma Onyi
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Stella Chioma Onyi's NPI number?
Dr. Stella Chioma Onyi's NPI number is 1881057750. It was assigned on March 30, 2016, and it is active in the NPI Registry.
What kind of doctor is Dr. Stella Chioma Onyi?
Dr. Stella Chioma Onyi is a diagnostic radiologist in Hemet, California. The primary specialty in the NPI Registry is Diagnostic Radiology Physician (taxonomy code 2085R0202X).
Where does Dr. Stella Chioma Onyi practice?
Dr. Onyi practices at 1117 East Devonshire, Hemet, CA 92543. Dr. Onyi's primary practice is Hemet Global Medical Center in Hemet, California, part of KPC Healthcare. Dmand AI also links Dr. Onyi to 3 hospitals, 5 medical groups and 2 group practices and clinics.
What is Dr. Stella Chioma Onyi's office phone number?
The practice phone on file for Dr. Onyi is (951) 652-2811.
What is Dr. Stella Chioma Onyi's medical license number?
Dr. Onyi's California license number on file is 20A16545, one of the licenses on file in 3 states.
Which states has Dr. Stella Chioma Onyi been licensed in?
Dmand AI has state licenses on file for Dr. Onyi in California (2018 to 2025), Illinois (2024 to 2026) and Florida (2021 to 2024).
Which hospitals is Dr. Stella Chioma Onyi affiliated with?
Dr. Onyi practices at Hemet Global Medical Center in Hemet, California. Dr. Onyi is also affiliated with Shasta Regional Medical Center. Dmand AI links Dr. Onyi to 3 more hospitals.
What medical group is Dr. Stella Chioma Onyi part of?
Dr. Onyi is linked to Seven Star Medical Group. Dmand AI links Dr. Onyi to 5 more medical groups.
Does Dr. Stella Chioma Onyi accept Medicare?
Yes. CMS data shows Dr. Onyi billed Medicare for 5,145 services in 2024, and Dr. Onyi accepts Medicare assignment.
What is Dr. Stella Chioma Onyi's MIPS score?
Dr. Onyi's MIPS final score for performance year 2024 is 75 out of 100, reported as part of a group.
Show 9 more questionsShow fewer questions
How many Medicare patients does Dr. Stella Chioma Onyi see?
CMS counts 3,743 Medicare patients who saw Dr. Onyi in 2024, with an average age of 73.
Is Dr. Stella Chioma Onyi board certified?
Yes. Dr. Onyi is board certified in diagnostic radiology by the American Board of Radiology.
What services does Dr. Stella Chioma Onyi bill to Medicare?
In 2024, Dr. Onyi's most billed Medicare services were diagnostic imaging (71045), diagnostic imaging (70450) and diagnostic imaging (74176).
Where did Dr. Stella Chioma Onyi go to medical school?
Dr. Onyi graduated from Rostov State Medical University in 2016.
Has Dr. Stella Chioma Onyi received payments from drug or device companies?
CMS Open Payments shows $18 in general payments to Dr. Onyi from 1 company from 2018 to 2018. The largest total came from Abbott Laboratories.
How long has Dr. Stella Chioma Onyi been practicing?
Dr. Onyi graduated from medical school in 2016, 10 years ago.
Does Dr. Stella Chioma Onyi do research?
Dmand AI links 4 publications to Dr. Onyi, published from 2013 to 2023.
Who does Dr. Stella Chioma Onyi publish with?
Dr. Onyi's most frequent co-authors are Chukwuemeka Anthony Umeh, MD (3 shared papers), Mehmet Sait Albayram, MD (1 shared paper) and Rakesh Chander Gupta, MD (1 shared paper).
What insurance does Dr. Stella Chioma Onyi accept?
Dr. Onyi is in network with 2 carriers, including Blue Cross Blue Shield of Michigan and CMS Medicare. Medicare plans come from the most carriers, 1. Check the plan with the practice before a visit.
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