Dr. John A. Willis, MD
- Medicare services, 2024
- 341
- Medicare patients, 2024
- 131
- Part D claims, 2024
- 24
- MIPS score, 2024
- 92
- Hospital affiliations
- 3
- Practice address
- 18 State Rte 6A, Sandwich, MA 02563
- Practice phone
- Call (508) 775-8282
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Cape Cod Orthopedics and Sports Medicine
Sandwich, Massachusetts
Find Dr. Willis' 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. John A. Willis is an orthopedic surgeon in Sandwich, Massachusetts
Dr. Willis practices at Cape Cod Orthopedics and Sports Medicine in Sandwich, Massachusetts.
Dr. Willis' NPI, 1548253172, was assigned on August 30, 2005. Dr. Willis graduated from University of Connecticut School of Medicine in 1993. Dr. Willis holds Massachusetts license 160529.
- NPI
- 1548253172NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2567661416
- NPI enumeration date
- August 30, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (508) 775-8282
- 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 Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John A. Willis practices at Cape Cod Orthopedics and Sports Medicine in Sandwich, Massachusetts
Dr. Willis' primary practice is Cape Cod Orthopedics and Sports Medicine, at 18 State Rte 6A, Sandwich, MA 02563 in Barnstable County. The practice phone is (508) 775-8282.
- Cape Cod Orthopedics and Sports Medicine18 State Rte 6A, Sandwich, MA 02563 · Barnstable CountyPhone(508) 775-8282
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. John A. Willis is affiliated with 8 sites of care and 2 medical groups
Dr. Willis' primary practice is Cape Cod Orthopedics and Sports Medicine in Sandwich, Massachusetts. Dr. Willis is also affiliated with Cape Cod Hospital. The medical group on file is Cape Cod Orthopaedics & Sports Medicine, P.C. Dmand AI also links Dr. Willis to 2 more hospitals, 2 group practices and clinics, 2 home health agencies and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. John A. 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 |
|---|---|
| Cape Cod Orthopedics and Sports Medicine | Available with a free account |
| +7 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John A. Willis is one of 593 orthopedic surgeons in Massachusetts
Orthopaedic surgery is Dr. Willis' primary specialty in the NPI Registry, under taxonomy code 207X00000X. Dr. Willis is licensed in Massachusetts.
Specialties and state licenses
- Orthopaedic surgery, MassachusettsPrimary
Orthopedic surgeons near Dr. Willis
Counts of orthopedic 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. John A. Willis billed Medicare for 341 services in 2024
CMS data shows 341 Medicare services from Dr. Willis across 8 procedure codes in 2024, for 131 Medicare patients. Medicare paid $62,897 for them.
Dr. Willis' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Surgery
- 2023: 1482024: 12714%
- Office and hospital visits
- 2023: 1152024: 1077%
- Drugs given in the office
- 2023: 922024: 92No change
- Imaging
- 2023: 292024: 1548%
Where Dr. Willis' Medicare services took place, 2024
- In an office23469%
- In a facility10731%
Dr. Willis compared with the Massachusetts median for orthopedic surgeons, 2024
- Dr. Willis
- Massachusetts median
- Medicare services
- 341vs 67249% below
- Medicare patients
- 131vs 30257% below
- Part D claims
- 29vs 5042% below
Medians across 543 orthopedic surgeons in Massachusetts 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 orthopedic surgeons in Massachusetts.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John A. Willis treated 131 Medicare patients in 2024, average age 71
CMS counts 131 Medicare patients who saw Dr. Willis in 2024. The largest group is 65 to 74, with 91 patients. 75% of them have high cholesterol, and 66% have arthritis. Their average risk score is 0.77, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Willis' median patient age at 66, with 47% women.
Dr. Willis' Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Willis' Medicare patients by sex, 2024
- Women4937%
- Men8263%
Chronic conditions among Dr. Willis' Medicare patients, 2024
- High cholesterol75%
- Arthritis66%
- High blood pressure60%
- Anxiety21%
- Ischemic heart disease17%
- Diabetes16%
- Chronic kidney disease15%
- Cancer14%
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 66
Patient panel by sex, all payers
- Women47%
- Men52%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John A. Willis wrote 24 Medicare Part D claims in 2024
In 2024, Dr. Willis wrote 24 Medicare Part D claims for 16 patients. 96% of them were for generic drugs. They cover 2 drugs, with $215 in total drug cost. In 2016, CMS named 15 claims across 1 drug.
Dr. Willis' Part D claims by kind of drug, 2024
- Generic23 claims96%
- Brand-name and other1 claims4%
Dr. Willis' most prescribed drugs by claims, 2023
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
- Antibiotics58%14 of 24 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, 2016 to 2023
- 2016
- 2023
- Claims for drugs CMS names
- 2016: 152023: 2993%
Drugs named by CMS: 2 in 2023, 1 in 2016.
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. John A. Willis scored 92 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 92 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. CMS counts 135 procedures of upper limb (arm) arthroscopy (minimally invasive joint repair) by Dr. Willis, more than 98% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Dr. Willis' MIPS scores, performance year 2024
- 92of 100Final score
- 91.1of 100Quality
- 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
- Upper limb (arm) arthroscopy (minimally invasive joint repair)
- 98th percentile135 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Knee replacement: 1 to 10 procedures (CMS shows small counts as a range)
Lower limb (leg) arthroscopy (minimally invasive joint repair): 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); 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. John A. Willis received $1,760 in industry payments from 2016 to 2025
CMS Open Payments shows 34 general payments to Dr. Willis from 7 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Zimmer Biomet Holdings, Inc. paid the most, $1,019.
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. John A. Willis graduated from University of Connecticut School of Medicine
Dr. Willis graduated from University of Connecticut School of Medicine in 1993.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. John A. 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 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 | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)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. John A. 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. John A. Willis' NPI number?
Dr. John A. Willis' NPI number is 1548253172. It was assigned on August 30, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. John A. Willis?
Dr. John A. Willis is an orthopedic surgeon in Sandwich, Massachusetts. The primary specialty in the NPI Registry is Orthopaedic Surgery Physician (taxonomy code 207X00000X).
Where does Dr. John A. Willis practice?
Dr. Willis practices at 18 State Rte 6A, Sandwich, MA 02563. Dr. Willis' primary practice is Cape Cod Orthopedics and Sports Medicine in Sandwich, Massachusetts. Dmand AI also links Dr. Willis to 2 hospitals, 2 group practices and clinics, 2 home health agencies and 1 medical group.
What is Dr. John A. Willis' office phone number?
The practice phone on file for Dr. Willis is (508) 775-8282.
What is Dr. John A. Willis' medical license number?
Dr. Willis holds Massachusetts license 160529.
Which hospitals is Dr. John A. Willis affiliated with?
Dr. Willis is affiliated with Cape Cod Hospital. Dmand AI links Dr. Willis to 2 more hospitals.
What medical group is Dr. John A. Willis part of?
Dr. Willis is linked to Cape Cod Orthopaedics & Sports Medicine, P.C. Dmand AI links Dr. Willis to 1 more medical group.
Does Dr. John A. Willis accept Medicare?
Yes. CMS data shows Dr. Willis billed Medicare for 341 services in 2024, and Dr. Willis accepts Medicare assignment.
What is Dr. John A. Willis' MIPS score?
Dr. Willis' MIPS final score for performance year 2024 is 92 out of 100, reported as part of a group.
How many Medicare patients does Dr. John A. Willis see?
CMS counts 131 Medicare patients who saw Dr. Willis in 2024, with an average age of 71.
Show 5 more questionsShow fewer questions
What services does Dr. John A. Willis bill to Medicare?
In 2024, Dr. Willis' most billed Medicare services were injected or infused drug (J3301), surgery: bones and joints (29826) and office visit, established patient (99213).
Where did Dr. John A. Willis go to medical school?
Dr. Willis graduated from University of Connecticut School of Medicine in 1993.
What drugs does Dr. John A. Willis prescribe most?
In 2023 Medicare Part D data, Dr. Willis' most prescribed drugs by claims were Amoxicillin and Ibuprofen.
Has Dr. John A. Willis received payments from drug or device companies?
CMS Open Payments shows $1,760 in general payments to Dr. Willis from 7 companies from 2016 to 2025. The largest total came from Zimmer Biomet Holdings, Inc.
How long has Dr. John A. Willis been practicing?
Dr. Willis graduated from medical school in 1993, 33 years ago.
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