Dr. Alan K. Willis, MD
- Medicare services, 2024
- 3,099
- Medicare patients, 2024
- 1,026
- Part D claims, 2024
- 2,115
- MIPS score, 2024
- 88
- Hospital affiliations
- 4
- Practice address
- 227 Brittany Rd, Guntersville, AL 35976
- Practice phone
- Call (256) 894-6800
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Marshall Cancer Care Center
Guntersville, Alabama
Find Dr. Willis' professional email, personal email and mobile number
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Dr. Alan K. Willis is a vascular surgeon in Guntersville, Alabama
Dr. Willis practices at Marshall Cancer Care Center in Guntersville, Alabama.
Dr. Willis' NPI, 1225219256, was assigned on November 19, 2007. Dr. Willis graduated from University of Alabama School of Medicine in 2003. Dr. Willis holds Alabama license 26664.
- NPI
- 1225219256NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1355534363
- NPI enumeration date
- November 19, 2007
- NPI status
- Active
- Practice phone
- (256) 894-6800
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 49
- Medical school graduation
- 2003
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Alan K. Willis practices at Marshall Cancer Care Center in Guntersville, Alabama
Dr. Willis' primary practice is Marshall Cancer Care Center, at 227 Brittany Rd, Guntersville, AL 35976 in Marshall County. The practice phone is (256) 894-6800.
- Marshall Cancer Care Center227 Brittany Rd, Guntersville, AL 35976 · Marshall CountyPhone(256) 894-6800
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Alan K. Willis is affiliated with 5 sites of care and 1 medical group
Dr. Willis' primary practice is Marshall Cancer Care Center in Guntersville, Alabama. Dr. Willis is also affiliated with Huntsville Hospital. The medical group on file is Northeast Alabama Vascular and Vein Specialists. Dmand AI also links Dr. Willis to 3 more hospitals, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Alan K. Willis' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Willis practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Marshall Cancer Care Center | Available with a free account |
| +4 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Alan K. Willis is one of 64 vascular surgeons in Alabama
Vascular surgery is Dr. Willis' primary specialty in the NPI Registry, under taxonomy code 2086S0129X. Dr. Willis is licensed in Alabama.
Specialties and state licenses
- Vascular surgery, AlabamaPrimary
Vascular surgeons near Dr. Willis
Counts of vascular surgeons 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. Alan K. Willis billed Medicare for 3,099 services in 2024
CMS data shows 3,099 Medicare services from Dr. Willis across 21 procedure codes in 2024, for 1,026 Medicare patients. Medicare paid $131,881 for them.
Dr. Willis' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,4542024: 1,4621%
- Tests and treatments
- 2023: 1,3112024: 1,3432%
- Imaging
- 2023: 1312024: 16022%
- Surgery
- 2023: 2572024: 13448%
Where Dr. Willis' Medicare services took place, 2024
- In an office2,43679%
- In a facility66321%
Dr. Willis compared with the Alabama median for vascular surgeons, 2024
- Dr. Willis
- Alabama median
- Medicare services
- 3,099vs 7594.1 times
- Medicare patients
- 1,026vs 3433.0 times
- Part D claims
- 1,956vs 2747.1 times
Medians across 57 vascular surgeons in Alabama 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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Willis and other vascular surgeons in Alabama.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Alan K. Willis treated 1,026 Medicare patients in 2024, average age 75
CMS counts 1,026 Medicare patients who saw Dr. Willis in 2024. The largest group is 75 to 84, with 421 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 14% are also on Medicaid. Their average risk score is 1.69, 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 72, with 53% women.
Dr. Willis' Medicare patients by age, 2024
Dr. Willis' Medicare patients by sex, 2024
- Women56455%
- Men46245%
Chronic conditions among Dr. Willis' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis58%
- Diabetes44%
- Ischemic heart disease44%
- Chronic kidney disease37%
- COPD33%
- Heart failure30%
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 72
Patient panel by sex, all payers
- Women53%
- Men47%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Alan K. Willis wrote 2,115 Medicare Part D claims in 2024
In 2024, Dr. Willis wrote 2,115 Medicare Part D claims for 555 patients. 85% of them were for generic drugs. CMS names the drug for 1,956 of them, across 17 drugs with 11 or more claims each, at $227,475 in total drug cost. In 2023, CMS named 1,717 claims across 17 drugs.
Dr. Willis' Part D claims by kind of drug, 2024
- Generic1,797 claims85%
- Brand-name318 claims15%
Dr. Willis' most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Willis' Part D claims, 2024
- Opioids25%526 of 2,115 claims
- Antibiotics6%130 of 2,115 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1,7172024: 1,95614%
Drugs named by CMS: 17 in 2024, 17 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Alan K. Willis scored 88 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 88 out of 100 for Dr. Willis for performance year 2024, reported through an alternative payment model (APM). CMS counts 64 procedures of leg revascularization (restoring blood flow) by Dr. Willis, more than 97% of the clinicians it reports for that procedure.
Dr. Willis' MIPS scores, performance year 2024
- 88of 100Final score
- 82.8of 100Quality
- 83of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Willis ranks in Medicare procedure volume
- Varicose vein removal
- 87th percentile142 procedures
- Leg revascularization (restoring blood flow)
- 97th percentile64 procedures
- Removal of tissue
- 69th percentile20 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Alan K. Willis received $10,200 in industry payments from 2016 to 2025
CMS Open Payments shows 291 general payments to Dr. Willis from 46 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 87% of the total. Endologix, Inc. paid the most, $1,717.
General payments to Dr. Willis by program year, 2016 to 2025
General payments to Dr. Willis by kind, 2016 to 2025
- Food and beverage$8,91687%
- Travel and lodging$1,28413%
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. Alan K. Willis graduated from University of Alabama School of Medicine
Dr. Willis graduated from University of Alabama School of Medicine in 2003.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Alan K. 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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - 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)Doctors and Clinicians Utilization Data (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. Alan K. Willis
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. Alan K. Willis' NPI number?
Dr. Alan K. Willis' NPI number is 1225219256. It was assigned on November 19, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Alan K. Willis?
Dr. Alan K. Willis is a vascular surgeon in Guntersville, Alabama. The primary specialty in the NPI Registry is Vascular Surgery Physician (taxonomy code 2086S0129X).
Where does Dr. Alan K. Willis practice?
Dr. Willis practices at 227 Brittany Rd, Guntersville, AL 35976. Dr. Willis' primary practice is Marshall Cancer Care Center in Guntersville, Alabama. Dmand AI also links Dr. Willis to 3 hospitals.
What is Dr. Alan K. Willis' office phone number?
The practice phone on file for Dr. Willis is (256) 894-6800.
What is Dr. Alan K. Willis' medical license number?
Dr. Willis holds Alabama license 26664.
Which hospitals is Dr. Alan K. Willis affiliated with?
Dr. Willis is affiliated with Huntsville Hospital. Dmand AI links Dr. Willis to 3 more hospitals.
What medical group is Dr. Alan K. Willis part of?
Dr. Willis is linked to Northeast Alabama Vascular and Vein Specialists.
Does Dr. Alan K. Willis accept Medicare?
Yes. CMS data shows Dr. Willis billed Medicare for 3,099 services in 2024.
What is Dr. Alan K. Willis' MIPS score?
Dr. Willis' MIPS final score for performance year 2024 is 88 out of 100, reported through an alternative payment model (APM).
How many Medicare patients does Dr. Alan K. Willis see?
CMS counts 1,026 Medicare patients who saw Dr. Willis in 2024, with an average age of 75.
Show 5 more questionsShow fewer questions
What services does Dr. Alan K. Willis bill to Medicare?
In 2024, Dr. Willis' most billed Medicare services were office visit, established patient (99212), blood vessel study (93970) and blood vessel study (93925).
Where did Dr. Alan K. Willis go to medical school?
Dr. Willis graduated from University of Alabama School of Medicine in 2003.
What drugs does Dr. Alan K. Willis prescribe most?
In 2024 Medicare Part D data, Dr. Willis' most prescribed drugs by claims were Clopidogrel, Hydrocodone-Acetaminophen and Tramadol HCl.
Has Dr. Alan K. Willis received payments from drug or device companies?
CMS Open Payments shows $10,200 in general payments to Dr. Willis from 46 companies from 2016 to 2025. The largest total came from Endologix, Inc.
How long has Dr. Alan K. Willis been practicing?
Dr. Willis graduated from medical school in 2003, 23 years ago.
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