Dr. William H. Duncan, MD
- Medicare services, 2024
- 3,474
- Medicare patients, 2024
- 433
- Part D claims, 2024
- 701
- MIPS score, 2024
- 82
- Hospital affiliations
- 4
- Practice address
- 3555 S National Ave, Springfield, MO 65807
- Practice phone
- Call (417) 875-3332
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Ferrell-Duncan Clinic
Springfield, Missouri
Find Dr. Duncan's professional email, personal email and mobile number
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Dr. William H. Duncan is an orthopedic surgeon in Springfield, Missouri
Dr. Duncan practices at Ferrell-Duncan Clinic in Springfield, Missouri.
Dr. Duncan's NPI, 1679516231, was assigned on June 13, 2006. Dr. Duncan graduated from University of Kansas School of Med (KC/Wich/Sal) in 2000. Dr. Duncan holds Missouri license 2005005176.
- NPI
- 1679516231NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1557303260
- NPI enumeration date
- June 13, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (417) 875-3332
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 52
- Medical school graduation
- 2000
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. William H. Duncan practices at Ferrell-Duncan Clinic in Springfield, Missouri
Dr. Duncan's primary practice is Ferrell-Duncan Clinic, at 3555 S National Ave, Springfield, MO 65807 in Greene County. The practice phone is (417) 875-3332.
- Ferrell-Duncan Clinic3555 S National Ave, Springfield, MO 65807 · Greene CountyPhone(417) 875-3332
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. William H. Duncan is affiliated with 7 sites of care and 1 medical group
Dr. Duncan's primary practice is Ferrell-Duncan Clinic in Springfield, Missouri. Dr. Duncan is also affiliated with Cox Medical Center South. The medical group on file is Ferrell-Duncan Clinic. Dmand AI also links Dr. Duncan to 3 more hospitals, 1 group practice or clinic and 1 home health agency, 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. William H. Duncan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Duncan practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Ferrell-Duncan Clinic | Available with a free account |
| +6 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. William H. Duncan is one of 417 orthopedic surgeons in Missouri
Orthopaedic surgery is Dr. Duncan's primary specialty in the NPI Registry, under taxonomy code 207X00000X. Dr. Duncan is licensed in Missouri.
Specialties and state licenses
- Orthopaedic surgery, MissouriPrimary
Orthopedic surgeons near Dr. Duncan
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. William H. Duncan billed Medicare for 3,474 services in 2024
CMS data shows 3,474 Medicare services from Dr. Duncan across 22 procedure codes in 2024, for 433 Medicare patients. Medicare paid $175,709 for them.
Dr. Duncan's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Drugs given in the office
- 2023: 02024: 1,440
- Imaging
- 2023: 7912024: 1,09138%
- Office and hospital visits
- 2023: 3592024: 42017%
- Surgery
- 2023: 1512024: 327117%
- Lab and pathology
- 2023: 02024: 177
- Tests and treatments
- 2023: 02024: 19
Where Dr. Duncan's Medicare services took place, 2024
- In an office3,28995%
- In a facility1855%
Dr. Duncan compared with the Missouri median for orthopedic surgeons, 2024
- Dr. Duncan
- Missouri median
- Medicare services
- 3,474vs 8494.1 times
- Medicare patients
- 433vs 23187% above
- Part D claims
- 663vs 1564.3 times
Medians across 414 orthopedic surgeons in Missouri with Dmand AI profiles that report each measure.
Dr. Duncan'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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Duncan and other orthopedic surgeons in Missouri.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. William H. Duncan treated 433 Medicare patients in 2024, average age 74
CMS counts 433 Medicare patients who saw Dr. Duncan in 2024. The largest group is 65 to 74, with 237 patients. 75% of them have arthritis, and 75% have high blood pressure. 3% are also on Medicaid. Their average risk score is 0.99, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Duncan's median patient age at 72, with 56% women.
Dr. Duncan's Medicare patients by age, 2024
Dr. Duncan's Medicare patients by sex, 2024
- Women24958%
- Men18442%
Chronic conditions among Dr. Duncan's Medicare patients, 2024
- Arthritis75%
- High blood pressure75%
- High cholesterol74%
- Anxiety28%
- Mood disorders28%
- Depression27%
- Ischemic heart disease22%
- Diabetes21%
Share of Medicare patients with each condition. A patient can have several.
Dr. Duncan's 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
- Women56%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. William H. Duncan wrote 701 Medicare Part D claims in 2024
In 2024, Dr. Duncan wrote 701 Medicare Part D claims for 320 patients. 98% of them were for generic drugs. CMS names the drug for 663 of them, across 9 drugs with 11 or more claims each, at $12,704 in total drug cost. In 2023, CMS named 575 claims across 8 drugs.
Dr. Duncan's Part D claims by kind of drug, 2024
- Generic684 claims98%
- Brand-name17 claims2%
Dr. Duncan's 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. Duncan's Part D claims, 2024
- Opioids45%313 of 701 claims
- Antibiotics10%73 of 701 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: 5752024: 66315%
Drugs named by CMS: 9 in 2024, 8 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. William H. Duncan scored 82 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 82 out of 100 for Dr. Duncan for performance year 2024, reported as part of a group. Dr. Duncan accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 73 procedures of knee replacement by Dr. Duncan, more than 88% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Dr. Duncan's MIPS scores, performance year 2024
- 82of 100Final score
- 64.7of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 76of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Duncan ranks in Medicare procedure volume
- Knee replacement
- 88th percentile73 procedures
- Upper limb (arm) arthroscopy (minimally invasive joint repair)
- 79th percentile36 procedures
- Hip replacement
- 70th percentile24 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Lower limb (leg) arthroscopy (minimally invasive joint repair): 1 to 10 procedures (CMS shows small counts as a range)
Removal of tissue: 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. William H. Duncan received $10,548 in industry payments from 2016 to 2025
CMS Open Payments shows 77 general payments to Dr. Duncan from 10 drug and device companies from 2016 to 2025. Education make up the largest share, 61% of the total. Titan Surgical Group, LLC paid the most, $7,756.
General payments to Dr. Duncan by program year, 2016 to 2025
General payments to Dr. Duncan by kind, 2016 to 2025
- Education$6,47161%
- Food and beverage$2,30222%
- Travel and lodging$1,77517%
Companies that paid Dr. Duncan 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. William H. Duncan graduated from University of Kansas School of Med (KC/Wich/Sal)
Dr. Duncan graduated from University of Kansas School of Med (KC/Wich/Sal) in 2000.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. William H. Duncan'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. William H. Duncan
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. William H. Duncan's NPI number?
Dr. William H. Duncan's NPI number is 1679516231. It was assigned on June 13, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. William H. Duncan?
Dr. William H. Duncan is an orthopedic surgeon in Springfield, Missouri. The primary specialty in the NPI Registry is Orthopaedic Surgery Physician (taxonomy code 207X00000X).
Where does Dr. William H. Duncan practice?
Dr. Duncan practices at 3555 S National Ave, Springfield, MO 65807. Dr. Duncan's primary practice is Ferrell-Duncan Clinic in Springfield, Missouri. Dmand AI also links Dr. Duncan to 3 hospitals, 1 group practice or clinic and 1 home health agency.
What is Dr. William H. Duncan's office phone number?
The practice phone on file for Dr. Duncan is (417) 875-3332.
What is Dr. William H. Duncan's medical license number?
Dr. Duncan holds Missouri license 2005005176.
Which hospitals is Dr. William H. Duncan affiliated with?
Dr. Duncan is affiliated with Cox Medical Center South. Dmand AI links Dr. Duncan to 3 more hospitals.
What medical group is Dr. William H. Duncan part of?
Dr. Duncan is linked to Ferrell-Duncan Clinic.
Does Dr. William H. Duncan accept Medicare?
Yes. CMS data shows Dr. Duncan billed Medicare for 3,474 services in 2024, and Dr. Duncan accepts Medicare assignment.
What is Dr. William H. Duncan's MIPS score?
Dr. Duncan's MIPS final score for performance year 2024 is 82 out of 100, reported as part of a group.
How many Medicare patients does Dr. William H. Duncan see?
CMS counts 433 Medicare patients who saw Dr. Duncan in 2024, with an average age of 74.
Show 5 more questionsShow fewer questions
What services does Dr. William H. Duncan bill to Medicare?
In 2024, Dr. Duncan's most billed Medicare services were injected or infused drug (J1010), diagnostic imaging (73030) and office visit, established patient (99214).
Where did Dr. William H. Duncan go to medical school?
Dr. Duncan graduated from University of Kansas School of Med (KC/Wich/Sal) in 2000.
What drugs does Dr. William H. Duncan prescribe most?
In 2024 Medicare Part D data, Dr. Duncan's most prescribed drugs by claims were Ondansetron HCl, Oxycodone HCl and Hydrocodone-Acetaminophen.
Has Dr. William H. Duncan received payments from drug or device companies?
CMS Open Payments shows $10,548 in general payments to Dr. Duncan from 10 companies from 2016 to 2025. The largest total came from Titan Surgical Group, LLC.
How long has Dr. William H. Duncan been practicing?
Dr. Duncan graduated from medical school in 2000, 26 years ago.
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