J Ultrasound Med
ArteriesUltrasonographyUterus
Dr. Gregory C. Karnaze, MD
NPI1245233519
- Medicare services, 2024
- 4,342
- Medicare patients, 2024
- 2,590
- Publications
- 3
- MIPS score, 2024
- 100
- Industry payments
- $2,049
- Practice address
- 12800 W Parmer Ln, Ste 200, Cedar Park, TX 78613
- Practice phone
- Call (512) 453-6100
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Cedar Park & Cedar Park Breast Imaging
Mammography / Breast Imaging Center · Cedar Park, Texas
Find Dr. Karnaze'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. Gregory C. Karnaze is an interventional radiologist in Cedar Park, Texas
Dr. Karnaze practices at Cedar Park & Cedar Park Breast Imaging in Cedar Park, Texas.
Dr. Karnaze's NPI, 1245233519, was assigned on May 31, 2005. Dr. Karnaze graduated from University of Kansas School of Medicine - Kansas City in 1976. Dr. Karnaze holds Texas license G4320.
NPI and contact details
- NPI
- 1245233519NPI Registry (opens in a new tab)
- NPI enumeration date
- May 31, 2005
- NPI status
- Active
- Practice phone
- (512) 453-6100
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 76
- Medical school graduation
- 1976
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Gregory C. Karnaze practices at Cedar Park & Cedar Park Breast Imaging in Cedar Park, Texas
Dr. Karnaze's primary practice is Cedar Park & Cedar Park Breast Imaging, at 12800 W Parmer Ln, Ste 200, Cedar Park, TX 78613. The practice phone is (512) 453-6100.
- Cedar Park & Cedar Park Breast Imaging12800 W Parmer Ln, Ste 200, Cedar Park, TX 78613Phone(512) 453-6100
Source: Dmand AI Affiliation Data
Dr. Gregory C. Karnaze is affiliated with 2 sites of care and 2 medical groups
Dr. Karnaze's primary practice is Cedar Park & Cedar Park Breast Imaging in Cedar Park, Texas. The medical group on file is Singleton Associates PA. Dmand AI also links Dr. Karnaze to 1 more group practice or clinic and 1 medical group, each named with a free account.
Cedar Park & Cedar Park Breast ImagingPrimary
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Gregory C. Karnaze's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Karnaze practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Cedar Park & Cedar Park Breast Imaging | Available with a free account |
| +1 more site 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 site where Dr. Karnaze practices
Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Gregory C. Karnaze is one of 292 interventional radiologists in Texas
Vascular and interventional radiology is Dr. Karnaze's primary specialty in the NPI Registry, under taxonomy code 2085R0204X. Dr. Karnaze is board certified in diagnostic radiology by the American Board of Radiology. Dmand AI has Dr. Karnaze's licenses on file in 5 states: Texas, Missouri, North Carolina, Iowa and Minnesota.
Specialties and state licenses
- Vascular and interventional radiology, TexasPrimary
- Missouri license
- North Carolina license
- Iowa license
- Minnesota license
Interventional radiologists near Dr. Karnaze
Counts of interventional 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. Gregory C. Karnaze billed Medicare for 4,342 services in 2024
CMS data shows 4,342 Medicare services from Dr. Karnaze across 34 procedure codes in 2024, for 2,590 Medicare patients. Medicare paid $55,993 for them.
Medicare services, 20244,342
Medicare patients2,590
Paid by Medicare$55,993
Procedure codes34
Dr. Karnaze's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Imaging
- 2023: 1,8602024: 2,73547%
- Other services
- 2023: 9752024: 1,50054%
- Tests and treatments
- 2023: 422024: 95126%
- Surgery
- 2023: 122024: 12No change
- Lab and pathology
- 2023: 122024: 0100%
Where Dr. Karnaze's Medicare services took place, 2024
- In an office2,04747%
- In a facility2,29553%
Dr. Karnaze compared with the Texas median for interventional radiologists, 2024
- Dr. Karnaze
- Texas median
- Medicare services
- 4,342vs 8405.2 times
- Medicare patients
- 2,590vs 4825.4 times
Medians across 279 interventional radiologists in Texas with Dmand AI profiles that report each measure.
Dr. Karnaze'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. Karnaze?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Karnaze and other interventional radiologists in Texas.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Gregory C. Karnaze treated 2,590 Medicare patients in 2024, average age 75
CMS counts 2,590 Medicare patients who saw Dr. Karnaze in 2024. The largest group is 65 to 74, with 1,033 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 10% are also on Medicaid. Their average risk score is 1.77, 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. Karnaze's median patient age at 65, with 50% women.
Medicare patients, 20242,590
Average age75
Average risk score1.77
Also on Medicaid10%
Dr. Karnaze's Medicare patients by age, 2024
Dr. Karnaze's Medicare patients by sex, 2024
- Women1,37753%
- Men1,21347%
Chronic conditions among Dr. Karnaze's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis54%
- Ischemic heart disease43%
- Atrial fibrillation34%
- Diabetes34%
- Mood disorders34%
- Chronic kidney disease33%
Share of Medicare patients with each condition. A patient can have several.
Dr. Karnaze's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 65
Patient panel by sex, all payers
- Women50%
- Men48%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Gregory C. Karnaze scored 100 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 100 out of 100 for Dr. Karnaze for performance year 2024, reported as part of a group.
Dr. Karnaze's MIPS scores, performance year 2024
- 100of 100Final score
- 100of 100Quality
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Source: Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
For MedTech and pharma teams
Find interventional radiologists like Dr. Karnaze 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. Gregory C. Karnaze has 3 publications on record
Dmand AI links 3 papers to Dr. Karnaze. The most frequent topics are Tomography, X-Ray Computed. Dr. Karnaze has published most often in J Comput Assist Tomogr.
Papers3
Topics Dr. Karnaze writes about most
- Tomography, X-Ray Computed
Recent publications by Dr. Karnaze
J Comput Assist Tomogr
Adenocarcinoma, MucinousBiopsy, NeedlePancreatic Neoplasms
J Comput Assist Tomogr
Diagnosis, DifferentialDuodenumPancreatitis
See who Dr. Karnaze researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Karnaze works with, so you can find a warm path to the right interventional radiologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Gregory C. Karnaze received $2,049 in industry payments from 2016 to 2025
CMS Open Payments shows 36 general payments to Dr. Karnaze from 14 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Penumbra, Inc. paid the most, $352.
General payments to Dr. Karnaze by program year, 2016 to 2025
Companies that paid Dr. Karnaze the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Gregory C. Karnaze has 1 award and honors on record
Dmand AI lists 1 award for Dr. Karnaze, most recently Member in 1975.
Awards and honors for Dr. Karnaze
- 1975
- Member
Source: Dmand AI Professional Profile Data
Dr. Gregory C. Karnaze graduated from University of Kansas School of Medicine - Kansas City
Dr. Karnaze graduated from University of Kansas School of Medicine - Kansas City in 1976. Dr. Karnaze is a member of AOA, ACR, ARRS, RSNA, SIR and TMA.
- Medical school
- Board certified in diagnostic radiology
Source: Dmand AI Professional Profile Data
Dr. Gregory C. Karnaze accepts plans from 15 insurance carriers
Dr. Karnaze is in network with 15 carriers, including Aetna, Excellus BlueCross BlueShield and Elevance. HMO plans come from the most carriers, 10. Check the plan with the practice before a visit.
- Aetna
- Excellus BlueCross BlueShield
- Elevance
- United Healthcare
- Blue Cross Blue Shield of Michigan
- Alliant Health Plans
- HCSC
- Baylor Scott and White
- +7 more carriersWith a free account
Plan types Dr. Karnaze accepts, by number of carriers
- HMO10
- PPO9
- POS6
- EPO4
- Medicare4
Source: Dmand AI Insurance Network Data
Sources for Dr. Gregory C. Karnaze'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 | 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) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| 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. Gregory C. Karnaze
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. Gregory C. Karnaze's NPI number?
Dr. Gregory C. Karnaze's NPI number is 1245233519. It was assigned on May 31, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Gregory C. Karnaze?
Dr. Gregory C. Karnaze is an interventional radiologist in Cedar Park, Texas. The primary specialty in the NPI Registry is Vascular & Interventional Radiology Physician (taxonomy code 2085R0204X).
Where does Dr. Gregory C. Karnaze practice?
Dr. Karnaze practices at 12800 W Parmer Ln, Ste 200, Cedar Park, TX 78613. Dr. Karnaze's primary practice is Cedar Park & Cedar Park Breast Imaging in Cedar Park, Texas. Dmand AI also links Dr. Karnaze to 1 group practice or clinic and 1 medical group.
What is Dr. Gregory C. Karnaze's office phone number?
The practice phone on file for Dr. Karnaze is (512) 453-6100.
What is Dr. Gregory C. Karnaze's medical license number?
Dr. Karnaze holds Texas license G4320, one of the licenses on file in 5 states.
Which states has Dr. Gregory C. Karnaze been licensed in?
Dmand AI has state licenses on file for Dr. Karnaze in Texas (1983 to 2026), Missouri (1979 to 2026), North Carolina (1996 to 2024), Iowa (1979 to 2013) and Minnesota (1978 to 1984).
What medical group is Dr. Gregory C. Karnaze part of?
Dr. Karnaze is linked to Singleton Associates PA. Dmand AI links Dr. Karnaze to 1 more medical group.
Does Dr. Gregory C. Karnaze accept Medicare?
Yes. CMS data shows Dr. Karnaze billed Medicare for 4,342 services in 2024.
What is Dr. Gregory C. Karnaze's MIPS score?
Dr. Karnaze's MIPS final score for performance year 2024 is 100 out of 100, reported as part of a group.
How many Medicare patients does Dr. Gregory C. Karnaze see?
CMS counts 2,590 Medicare patients who saw Dr. Karnaze in 2024, with an average age of 75.
Show 7 more questionsShow fewer questions
Is Dr. Gregory C. Karnaze board certified?
Yes. Dr. Karnaze is board certified in diagnostic radiology by the American Board of Radiology.
What services does Dr. Gregory C. Karnaze bill to Medicare?
In 2024, Dr. Karnaze's most billed Medicare services were medicare temporary code (Q9967), diagnostic imaging (71045) and diagnostic imaging (71046).
Where did Dr. Gregory C. Karnaze go to medical school?
Dr. Karnaze graduated from University of Kansas School of Medicine - Kansas City in 1976.
Has Dr. Gregory C. Karnaze received payments from drug or device companies?
CMS Open Payments shows $2,049 in general payments to Dr. Karnaze from 14 companies from 2016 to 2025. The largest total came from Penumbra, Inc.
How long has Dr. Gregory C. Karnaze been practicing?
Dr. Karnaze graduated from medical school in 1976, 50 years ago.
Does Dr. Gregory C. Karnaze do research?
Dmand AI links 3 publications to Dr. Karnaze.
What insurance does Dr. Gregory C. Karnaze accept?
Dr. Karnaze is in network with 15 carriers, including Aetna, Excellus BlueCross BlueShield and Elevance. HMO plans come from the most carriers, 10. Check the plan with the practice before a visit.
Selling to vascular and interventional radiology practices?
See interventional radiologists in Texas 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