Dr. James P. Willis, MD
- Medicare services, 2024
- 3,064
- Medicare patients, 2024
- 1,804
- MIPS score, 2024
- 100
- Hospital affiliations
- 5
- Industry payments
- $469
- Practice address
- 12554 Riata Vista Cir, Austin, TX 78727
- Practice phone
- Call (512) 795-5100
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
ARA Diagnostic Imaging - Austin Radiological Association
Imaging Center - Main Location · Austin, Texas
Find Dr. Willis' professional email, personal email and mobile number
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Dr. James P. Willis is a diagnostic radiologist in Austin, Texas
Dr. Willis practices at ARA Diagnostic Imaging - Austin Radiological Association in Austin, Texas.
Dr. Willis' NPI, 1255321790, was assigned on October 26, 2005. Dr. Willis graduated from University of Wisconsin School of Medicine in 1993. Dr. Willis holds Texas license K1727.
- NPI
- 1255321790NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3173676061
- NPI enumeration date
- October 26, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (512) 795-5100
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 59
- Medical school graduation
- 1993
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. James P. Willis practices at ARA Diagnostic Imaging - Austin Radiological Association in Austin, Texas
Dr. Willis' primary practice is ARA Diagnostic Imaging - Austin Radiological Association, at 12554 Riata Vista Cir, Austin, TX 78727. The practice phone is (512) 795-5100.
- ARA Diagnostic Imaging - Austin Radiological Association12554 Riata Vista Cir, Austin, TX 78727Phone(512) 795-5100
Source: Dmand AI Affiliation Data
Dr. James P. Willis is affiliated with 7 sites of care and 2 medical groups
Dr. Willis' primary practice is ARA Diagnostic Imaging - Austin Radiological Association in Austin, Texas. Dr. Willis is also affiliated with St. David's Medical Center. The medical group on file is Singleton Associates PA. Dmand AI also links Dr. Willis to 4 more hospitals, 1 group practice or clinic and 1 medical group, 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. James P. Willis' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Willis practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| ARA Diagnostic Imaging - Austin Radiological Association | Available with a free account |
| +6 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. James P. Willis is one of 2,616 diagnostic radiologists in Texas
Diagnostic radiology is Dr. Willis' primary specialty in the NPI Registry, under taxonomy code 2085R0202X. Dr. Willis is licensed in Texas.
Specialties and state licenses
- Diagnostic radiology, TexasPrimary
Diagnostic radiologists near Dr. Willis
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. James P. Willis billed Medicare for 3,064 services in 2024
CMS data shows 3,064 Medicare services from Dr. Willis across 30 procedure codes in 2024, for 1,804 Medicare patients. Medicare paid $52,044 for them.
Dr. Willis' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Imaging
- 2023: 2,7692024: 1,94530%
- Other services
- 2023: 9182024: 1,01210%
- Tests and treatments
- 2023: 1352024: 8339%
- Surgery
- 2023: 482024: 2450%
- Lab and pathology
- 2023: 122024: 0100%
Where Dr. Willis' Medicare services took place, 2024
- In an office1,32643%
- In a facility1,73857%
Dr. Willis compared with the Texas median for diagnostic radiologists, 2024
- Dr. Willis
- Texas median
- Medicare services
- 3,064vs 1,87464% above
- Medicare patients
- 1,804vs 1,28440% above
Medians across 2,414 diagnostic radiologists in Texas with Dmand AI profiles that report each measure.
Dr. Willis' 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.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. James P. Willis treated 1,804 Medicare patients in 2024, average age 75
CMS counts 1,804 Medicare patients who saw Dr. Willis in 2024. The largest group is 65 to 74, with 735 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 12% are also on Medicaid. Their average risk score is 1.90, 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. Willis' median patient age at 65, with 56% women.
Dr. Willis' Medicare patients by age, 2024
Dr. Willis' Medicare patients by sex, 2024
- Women99655%
- Men80845%
Chronic conditions among Dr. Willis' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis50%
- Ischemic heart disease42%
- Mood disorders36%
- Anxiety34%
- Diabetes34%
- Atrial fibrillation33%
Share of Medicare patients with each condition. A patient can have several.
Dr. Willis' 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
- Women56%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. James P. Willis 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. Willis for performance year 2024, reported as part of a group. Dr. Willis accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Willis' 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.
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. James P. Willis received $469 in industry payments from 2016 to 2025
CMS Open Payments shows 12 general payments to Dr. Willis from 5 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, $266.
General payments to Dr. Willis by program year, 2016 to 2025
Companies that paid Dr. Willis 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. James P. Willis graduated from University of Wisconsin School of Medicine
Dr. Willis graduated from University of Wisconsin School of Medicine in 1993.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. James P. Willis'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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile 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. James P. Willis
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What is Dr. James P. Willis' NPI number?
Dr. James P. Willis' NPI number is 1255321790. It was assigned on October 26, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. James P. Willis?
Dr. James P. Willis is a diagnostic radiologist in Austin, Texas. The primary specialty in the NPI Registry is Diagnostic Radiology Physician (taxonomy code 2085R0202X).
Where does Dr. James P. Willis practice?
Dr. Willis practices at 12554 Riata Vista Cir, Austin, TX 78727. Dr. Willis' primary practice is ARA Diagnostic Imaging - Austin Radiological Association in Austin, Texas. Dmand AI also links Dr. Willis to 4 hospitals, 1 group practice or clinic and 1 medical group.
What is Dr. James P. Willis' office phone number?
The practice phone on file for Dr. Willis is (512) 795-5100.
What is Dr. James P. Willis' medical license number?
Dr. Willis holds Texas license K1727.
Which hospitals is Dr. James P. Willis affiliated with?
Dr. Willis is affiliated with St. David's Medical Center. Dmand AI links Dr. Willis to 4 more hospitals.
What medical group is Dr. James P. Willis part of?
Dr. Willis is linked to Singleton Associates PA. Dmand AI links Dr. Willis to 1 more medical group.
Does Dr. James P. Willis accept Medicare?
Yes. CMS data shows Dr. Willis billed Medicare for 3,064 services in 2024, and Dr. Willis accepts Medicare assignment.
What is Dr. James P. Willis' MIPS score?
Dr. Willis' MIPS final score for performance year 2024 is 100 out of 100, reported as part of a group.
How many Medicare patients does Dr. James P. Willis see?
CMS counts 1,804 Medicare patients who saw Dr. Willis in 2024, with an average age of 75.
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What services does Dr. James P. Willis bill to Medicare?
In 2024, Dr. Willis' most billed Medicare services were medicare temporary code (Q9967), diagnostic imaging (71045) and diagnostic imaging (74177).
Where did Dr. James P. Willis go to medical school?
Dr. Willis graduated from University of Wisconsin School of Medicine in 1993.
Has Dr. James P. Willis received payments from drug or device companies?
CMS Open Payments shows $469 in general payments to Dr. Willis from 5 companies from 2016 to 2025. The largest total came from Penumbra, Inc.
How long has Dr. James P. Willis been practicing?
Dr. Willis graduated from medical school in 1993, 33 years ago.
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