Emerg Radiol
Aneurysm, FalseCarotid Artery, ExternalOssification, Heterotopic
Dr. Stellios Karnezis, MD
NPI1205152956PAC ID0840439808
- Medicare services, 2024
- 15,176
- Medicare patients, 2024
- 3,163
- Publications
- 5
- Hospital affiliations
- 5
- Industry payments
- $40
- Practice address
- 9888 Genesee Avenue, La Jolla, CA 92037
- Practice phone
- Call (858) 626-4123
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Karnezis' 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. Stellios Karnezis is a diagnostic radiologist in La Jolla, California
Dr. Karnezis practices at Scripps Memorial Hospital La Jolla in La Jolla, California, part of Scripps Health.
Dr. Karnezis' NPI, 1205152956, was assigned on April 19, 2010. Dr. Karnezis graduated from Baylor College Of Medicine in 2008. Dr. Karnezis' California license number on file is A112377.
NPI and contact details
- NPI
- 1205152956NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0840439808
- NPI enumeration date
- April 19, 2010
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (858) 626-4123
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 44
- Medical school graduation
- 2008
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Stellios Karnezis practices at Scripps Memorial Hospital La Jolla in La Jolla, California
Dr. Karnezis' primary practice is Scripps Memorial Hospital La Jolla, at 9888 Genesee Avenue, La Jolla, CA 92037 in San Diego County. The practice phone is (858) 626-4123.
- Scripps Memorial Hospital La Jolla9888 Genesee Avenue, La Jolla, CA 92037 · San Diego CountyPhone(858) 626-4123
Source: Dmand AI Affiliation Data
Dr. Stellios Karnezis is affiliated with 5 sites of care and 2 medical groups
Dr. Karnezis' primary practice is Scripps Memorial Hospital La Jolla in La Jolla, California, part of Scripps Health. Dr. Karnezis is also affiliated with Scripps Green Hospital. The medical group on file is Scripps Clinic Medical Group. Dmand AI also links Dr. Karnezis to 3 more hospitals and 1 medical group, each named with a free account.
Scripps Green HospitalScripps Clinic Medical Group3 hospitalsNames with a free account1 medical groupName with a free account
See all 7 affiliations for Dr. KarnezisSources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Stellios Karnezis' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Karnezis practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Scripps Memorial Hospital La Jolla | Available with a free account |
| +4 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
See the EHR and IT leaders at every hospital where Dr. Karnezis practices
Dmand AI maps EHR vendors, IT decision makers and buying committees across Scripps Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Stellios Karnezis is one of 4,096 diagnostic radiologists in California
Diagnostic radiology is Dr. Karnezis' primary specialty in the NPI Registry, under taxonomy code 2085R0202X. Dr. Karnezis is board certified in diagnostic radiology by the American Board of Radiology. Dr. Karnezis has a license on file in California.
Specialties and state licenses
- Diagnostic radiology, CaliforniaPrimary
Diagnostic radiologists near Dr. Karnezis
Counts of diagnostic radiologists with a Dmand AI profile, by place and practice. Each opens the list.
4,096diagnostic radiologists in California42diagnostic radiologists in La Jolla15diagnostic radiologists at Scripps Memorial Hospital La Jolla
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Stellios Karnezis billed Medicare for 15,176 services in 2024
CMS data shows 15,176 Medicare services from Dr. Karnezis across 52 procedure codes in 2024, for 3,163 Medicare patients. Medicare paid $177,482 for them.
Medicare services, 202415,176
Medicare patients3,163
Paid by Medicare$177,482
Procedure codes52
Dr. Karnezis' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Other services
- 2023: 8,9932024: 10,64518%
- Imaging
- 2023: 3,3522024: 4,31429%
- Tests and treatments
- 2023: 1062024: 217105%
Where Dr. Karnezis' Medicare services took place, 2024
- In an office11,07573%
- In a facility4,10127%
Dr. Karnezis compared with the California median for diagnostic radiologists, 2024
- Dr. Karnezis
- California median
- Medicare services
- 15,176vs 2,2816.7 times
- Medicare patients
- 3,163vs 1,3462.3 times
Medians across 3,734 diagnostic radiologists in California with Dmand AI profiles that report each measure.
Dr. Karnezis' 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. Karnezis?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Karnezis and other diagnostic radiologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Stellios Karnezis treated 3,163 Medicare patients in 2024, average age 78
CMS counts 3,163 Medicare patients who saw Dr. Karnezis in 2024. The largest group is 75 to 84, with 1,266 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 19% are also on Medicaid. Their average risk score is 1.91, 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. Karnezis' median patient age at 63, with 56% women.
Medicare patients, 20243,163
Average age78
Average risk score1.91
Also on Medicaid19%
Dr. Karnezis' Medicare patients by age, 2024
Dr. Karnezis' Medicare patients by sex, 2024
- Women1,82158%
- Men1,34242%
Chronic conditions among Dr. Karnezis' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis57%
- Chronic kidney disease40%
- Ischemic heart disease40%
- Mood disorders38%
- Anxiety35%
- Depression35%
Share of Medicare patients with each condition. A patient can have several.
Dr. Karnezis' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 63
Patient panel by sex, all payers
- Women56%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. Stellios Karnezis takes part in Medicare
Dr. Karnezis accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
For MedTech and pharma teams
Find diagnostic radiologists like Dr. Karnezis by procedure volume and prescribing
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Stellios Karnezis has 5 publications on record
Dmand AI links 5 papers to Dr. Karnezis, published from 2010 to 2018. Dr. Karnezis' most frequent co-authors are Roy Masami Fujitani, MD, Akira Ishiyama, MD and Gail Patrice Ishiyama, MD.
Papers5
Years published2010 to 2018
Dr. Karnezis' papers by year, 2010 to 2018
Dr. Karnezis' most frequent co-authors
- Roy Masami Fujitani, MD2 shared papers
- Akira Ishiyama, MD2 shared papers
- Gail Patrice Ishiyama, MD2 shared papers
Recent publications by Dr. Karnezis
See who Dr. Karnezis researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Karnezis 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. Stellios Karnezis received $40 in industry payments in 2017
CMS Open Payments shows 2 general payments to Dr. Karnezis from 1 drug or device company in 2017. Food and beverage make up the largest share, 100% of the total. Philips Electronics North America Corporation paid the most, $40.
Companies that paid Dr. Karnezis the most, 2017 to 2017
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Stellios Karnezis graduated from Baylor College Of Medicine
Dr. Karnezis graduated from Baylor College Of Medicine in 2008.
- Medical school
- Board certified in diagnostic radiology
- Board certified in neuroradiology
Source: Dmand AI Professional Profile Data
Dr. Stellios Karnezis accepts plans from 4 insurance carriers
Dr. Karnezis is in network with 4 carriers, including United Healthcare, Blue Cross and Blue Shield of Kansas City and CMS Medicare. Medicare plans come from the most carriers, 2. Check the plan with the practice before a visit.
- United Healthcare
- Blue Cross and Blue Shield of Kansas City
- CMS Medicare
- NV State Medicaid
Plan types Dr. Karnezis accepts, by number of carriers
- Medicare2
- EPO1
- HMO1
- Medicaid1
- POS1
- PPO1
Source: Dmand AI Insurance Network Data
Sources for Dr. Stellios Karnezis'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) |
| 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. Stellios Karnezis
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. Stellios Karnezis' NPI number?
Dr. Stellios Karnezis' NPI number is 1205152956. It was assigned on April 19, 2010, and it is active in the NPI Registry.
What kind of doctor is Dr. Stellios Karnezis?
Dr. Stellios Karnezis is a diagnostic radiologist in La Jolla, California. The primary specialty in the NPI Registry is Diagnostic Radiology Physician (taxonomy code 2085R0202X).
Where does Dr. Stellios Karnezis practice?
Dr. Karnezis practices at 9888 Genesee Avenue, La Jolla, CA 92037. Dr. Karnezis' primary practice is Scripps Memorial Hospital La Jolla in La Jolla, California, part of Scripps Health. Dmand AI also links Dr. Karnezis to 3 hospitals and 1 medical group.
What is Dr. Stellios Karnezis' office phone number?
The practice phone on file for Dr. Karnezis is (858) 626-4123.
What is Dr. Stellios Karnezis' medical license number?
Dr. Karnezis' California license number on file is A112377.
Which hospitals is Dr. Stellios Karnezis affiliated with?
Dr. Karnezis practices at Scripps Memorial Hospital La Jolla in La Jolla, California. Dr. Karnezis is also affiliated with Scripps Green Hospital. Dmand AI links Dr. Karnezis to 3 more hospitals.
What medical group is Dr. Stellios Karnezis part of?
Dr. Karnezis is linked to Scripps Clinic Medical Group. Dmand AI links Dr. Karnezis to 1 more medical group.
Does Dr. Stellios Karnezis accept Medicare?
Yes. CMS data shows Dr. Karnezis billed Medicare for 15,176 services in 2024, and Dr. Karnezis accepts Medicare assignment.
How many Medicare patients does Dr. Stellios Karnezis see?
CMS counts 3,163 Medicare patients who saw Dr. Karnezis in 2024, with an average age of 78.
Is Dr. Stellios Karnezis board certified?
Yes. Dr. Karnezis is board certified in diagnostic radiology by the American Board of Radiology.
Show 7 more questionsShow fewer questions
What services does Dr. Stellios Karnezis bill to Medicare?
In 2024, Dr. Karnezis' most billed Medicare services were medicare temporary code (Q9967), medical supplies or transport (A9575) and diagnostic imaging (71045).
Where did Dr. Stellios Karnezis go to medical school?
Dr. Karnezis graduated from Baylor College Of Medicine in 2008.
Has Dr. Stellios Karnezis received payments from drug or device companies?
CMS Open Payments shows $40 in general payments to Dr. Karnezis from 1 company from 2017 to 2017. The largest total came from Philips Electronics North America Corporation.
How long has Dr. Stellios Karnezis been practicing?
Dr. Karnezis graduated from medical school in 2008, 18 years ago.
Does Dr. Stellios Karnezis do research?
Dmand AI links 5 publications to Dr. Karnezis, published from 2010 to 2018.
Who does Dr. Stellios Karnezis publish with?
Dr. Karnezis' most frequent co-authors are Roy Masami Fujitani, MD (2 shared papers), Akira Ishiyama, MD (2 shared papers) and Gail Patrice Ishiyama, MD (2 shared papers).
What insurance does Dr. Stellios Karnezis accept?
Dr. Karnezis is in network with 4 carriers, including United Healthcare, Blue Cross and Blue Shield of Kansas City and CMS Medicare. Medicare plans come from the most carriers, 2. Check the plan with the practice before a visit.
Selling to diagnostic radiology practices?
See diagnostic radiologists in California by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card