William E. Knudson Jr., DPM
- Medicare patients, 2024
- 940
- Part D claims, 2024
- 553
- MIPS score, 2024
- 89
- Hospital affiliations
- 1
- Industry payments
- $92
- Practice address
- 224A Cornwall NW St, Leesburg, VA 20176
- Practice phone
- Call (703) 777-7477
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Cornwall Surgery Center
Leesburg, Virginia
Find William Knudson's professional email, personal email and mobile number
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William E. Knudson Jr. is a podiatric surgeon in Leesburg, Virginia
William Knudson practices at Cornwall Surgery Center in Leesburg, Virginia.
William Knudson's NPI, 1083608814, was assigned on September 8, 2005. William Knudson graduated from College of Podiatric Med and Surgery, Des Moines University in 1995. William Knudson holds Virginia license 0103301049.
- NPI
- 1083608814NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9032134119
- NPI enumeration date
- September 8, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (703) 777-7477
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 57
- Medical school graduation
- 1995
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
William E. Knudson Jr. practices at Cornwall Surgery Center in Leesburg, Virginia
William Knudson's primary practice is Cornwall Surgery Center, at 224A Cornwall NW St, Leesburg, VA 20176 in Loudoun County. The practice phone is (703) 777-7477.
- Cornwall Surgery Center224A Cornwall NW St, Leesburg, VA 20176 · Loudoun CountyPhone(703) 777-7477
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
William E. Knudson Jr. is affiliated with 3 sites of care and 1 medical group
William Knudson's primary practice is Cornwall Surgery Center in Leesburg, Virginia. William Knudson is also affiliated with Inova Loudoun Hospital. The medical group on file is Foot & Ankle Specialists of the Mid-Atlantic. Dmand AI also links William Knudson to 1 more group practice or clinic, 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 William E. Knudson Jr.'s practice
Dmand AI tracks the electronic health record (EHR) system at each site where William Knudson practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Cornwall Surgery Center | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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William E. Knudson Jr. is one of 225 podiatric surgeons in Virginia
Foot and ankle surgery is William Knudson's primary specialty in the NPI Registry, under taxonomy code 213ES0103X. William Knudson is licensed in Virginia.
Specialties and state licenses
- Foot and ankle surgery podiatrist, VirginiaPrimary
Podiatric surgeons near William Knudson
Counts of podiatric 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
William E. Knudson Jr. treated 940 Medicare patients in 2024, average age 78
CMS counts 940 Medicare patients who saw William Knudson in 2024. The largest group is 75 to 84, with 402 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 6% are also on Medicaid. Their average risk score is 1.23, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts William Knudson's median patient age at 66, with 61% women.
William Knudson's Medicare patients by age, 2024
William Knudson's Medicare patients by sex, 2024
- Women55859%
- Men38241%
Chronic conditions among William Knudson's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis61%
- Diabetes37%
- Ischemic heart disease27%
- Chronic kidney disease22%
- Atrial fibrillation21%
- Anxiety19%
Share of Medicare patients with each condition. A patient can have several.
William Knudson's 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
- Women61%
- Men37%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
William E. Knudson Jr. wrote 553 Medicare Part D claims in 2024
In 2024, William Knudson wrote 553 Medicare Part D claims for 218 patients. 98% of them were for generic drugs.
William Knudson's Part D claims by kind of drug, 2024
- Generic543 claims98%
- Brand-name and other10 claims2%
Drug classes CMS tracks in William Knudson's Part D claims, 2024
- Opioids8%47 of 553 claims
- Antibiotics13%71 of 553 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
William E. Knudson Jr. scored 89 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 89 out of 100 for William Knudson for performance year 2024, reported as part of a group. William Knudson accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 395 procedures of removal or shaving of skin growth by William Knudson, more than 94% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
William Knudson's MIPS scores, performance year 2024
- 89of 100Final score
- 87of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where William Knudson ranks in Medicare procedure volume
- Removal of nail tissue
- 91st percentile904 procedures
- Removal or shaving of skin growth
- 94th percentile395 procedures
- Removal of tissue
- 75th percentile37 procedures
- Removal of skin lesions
- 58th percentile11 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
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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William E. Knudson Jr. received $92 in industry payments in 2025
CMS Open Payments shows 6 general payments to William Knudson from 4 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. ANI Pharmaceuticals, Inc. paid the most, $36.
Companies that paid William Knudson the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
William E. Knudson Jr. graduated from College of Podiatric Med and Surgery, Des Moines University
William Knudson graduated from College of Podiatric Med and Surgery, Des Moines University in 1995.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for William E. Knudson Jr.'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 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 (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 William E. Knudson Jr.
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is William E. Knudson Jr.'s NPI number?
William E. Knudson Jr.'s NPI number is 1083608814. It was assigned on September 8, 2005, and it is active in the NPI Registry.
What does William E. Knudson Jr. specialize in?
William E. Knudson Jr. is a podiatric surgeon in Leesburg, Virginia. The primary specialty in the NPI Registry is Foot & Ankle Surgery Podiatrist (taxonomy code 213ES0103X).
Where does William E. Knudson Jr. practice?
William Knudson practices at 224A Cornwall NW St, Leesburg, VA 20176. William Knudson's primary practice is Cornwall Surgery Center in Leesburg, Virginia. Dmand AI also links William Knudson to 1 group practice or clinic.
What is William E. Knudson Jr.'s office phone number?
The practice phone on file for William Knudson is (703) 777-7477.
What is William E. Knudson Jr.'s medical license number?
William Knudson holds Virginia license 0103301049.
Which hospitals is William E. Knudson Jr. affiliated with?
William Knudson is affiliated with Inova Loudoun Hospital.
What medical group is William E. Knudson Jr. part of?
William Knudson is linked to Foot & Ankle Specialists of the Mid-Atlantic.
Does William E. Knudson Jr. accept Medicare?
Yes. CMS lists William Knudson as accepting Medicare assignment.
What is William E. Knudson Jr.'s MIPS score?
William Knudson's MIPS final score for performance year 2024 is 89 out of 100, reported as part of a group.
How many Medicare patients does William E. Knudson Jr. see?
CMS counts 940 Medicare patients who saw William Knudson in 2024, with an average age of 78.
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Where did William E. Knudson Jr. go to medical school?
William Knudson graduated from College of Podiatric Med and Surgery, Des Moines University in 1995.
Has William E. Knudson Jr. received payments from drug or device companies?
CMS Open Payments shows $92 in general payments to William Knudson from 4 companies from 2025 to 2025. The largest total came from ANI Pharmaceuticals, Inc.
How long has William E. Knudson Jr. been practicing?
William Knudson graduated from medical school in 1995, 31 years ago.
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