Dr. William Feinstein, MD
- Medicare services, 2024
- 1,377
- Medicare patients, 2024
- 433
- Part D claims, 2024
- 232
- MIPS score, 2024
- 92
- Hospital affiliations
- 4
- Practice address
- 1050 Old Des Peres Rd STE 40, Saint Louis, MO 63131
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Des Peres Square Surgery Center - HOPD
Inpatient Rehabilitation Facility · Saint Louis, Missouri
Find Dr. Feinstein's professional email, personal email and mobile number
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Dr. William Feinstein is an orthopaedic hand surgery physician in Saint Louis, Missouri
Dr. Feinstein practices at Des Peres Square Surgery Center - HOPD in Saint Louis, Missouri.
Dr. Feinstein's NPI, 1144373341, was assigned on January 19, 2007. Dr. Feinstein graduated from Saint Louis University School of Medicine in 1993. Dr. Feinstein holds Missouri license 2000155783.
- NPI
- 1144373341NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4981617156
- NPI enumeration date
- January 19, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- 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. William Feinstein practices at Des Peres Square Surgery Center - HOPD in Saint Louis, Missouri
Dr. Feinstein's primary practice is Des Peres Square Surgery Center - HOPD, at 1050 Old Des Peres Rd STE 40, Saint Louis, MO 63131.
- Des Peres Square Surgery Center - HOPD1050 Old Des Peres Rd STE 40, Saint Louis, MO 63131
Source: Dmand AI Affiliation Data
Dr. William Feinstein is affiliated with 6 sites of care and 1 medical group
Dr. Feinstein's primary practice is Des Peres Square Surgery Center - HOPD in Saint Louis, Missouri. Dr. Feinstein is also affiliated with Missouri Baptist Medical Center. The medical group on file is Orthopedic Associates. Dmand AI also links Dr. Feinstein to 2 more hospitals, 1 group practice or clinic and 1 ambulatory surgery center, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. William Feinstein's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Feinstein practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Des Peres Square Surgery Center - HOPD | Available with a free account |
| +5 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. William Feinstein is one of 35 orthopaedic hand surgery physicians in Missouri
Hand surgery is Dr. Feinstein's primary specialty in the NPI Registry, under taxonomy code 207XS0106X. Dr. Feinstein is licensed in Missouri.
Specialties and state licenses
- Orthopaedic hand surgery, MissouriPrimary
Orthopaedic hand surgery physicians near Dr. Feinstein
Counts of orthopaedic hand surgery physicians 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 Feinstein billed Medicare for 1,377 services in 2024
CMS data shows 1,377 Medicare services from Dr. Feinstein across 19 procedure codes in 2024, for 433 Medicare patients. Medicare paid $90,890 for them.
Dr. Feinstein's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3772024: 44318%
- Surgery
- 2023: 3062024: 39128%
- Drugs given in the office
- 2023: 1922024: 30760%
- Imaging
- 2023: 1502024: 23657%
Where Dr. Feinstein's Medicare services took place, 2024
- In an office1,28593%
- In a facility927%
Dr. Feinstein compared with the Missouri median for orthopaedic hand surgery physicians, 2024
- Dr. Feinstein
- Missouri median
- Medicare services
- 1,377vs 1,358Close to median
- Medicare patients
- 433vs 32035% above
- Part D claims
- 193vs 186Close to median
Medians across 36 orthopaedic hand surgery physicians in Missouri with Dmand AI profiles that report each measure.
Dr. Feinstein'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.
Need commercial claims for Dr. Feinstein?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Feinstein and other orthopaedic hand surgery physicians in Missouri.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. William Feinstein treated 433 Medicare patients in 2024, average age 74
CMS counts 433 Medicare patients who saw Dr. Feinstein in 2024. The largest group is 65 to 74, with 230 patients. 74% of them have high cholesterol, and 70% have high blood pressure. 3% are also on Medicaid. Their average risk score is 1.12, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Feinstein's median patient age at 67, with 57% women.
Dr. Feinstein's Medicare patients by age, 2024
Dr. Feinstein's Medicare patients by sex, 2024
- Women24857%
- Men18543%
Chronic conditions among Dr. Feinstein's Medicare patients, 2024
- High cholesterol74%
- High blood pressure70%
- Arthritis67%
- Ischemic heart disease27%
- Mood disorders26%
- Anxiety24%
- Depression24%
- Diabetes23%
Share of Medicare patients with each condition. A patient can have several.
Dr. Feinstein's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women57%
- Men42%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. William Feinstein wrote 232 Medicare Part D claims in 2024
In 2024, Dr. Feinstein wrote 232 Medicare Part D claims for 193 patients. 98% of them were for generic drugs. CMS names the drug for 193 of them, across 3 drugs with 11 or more claims each, at $522 in total drug cost. In 2023, CMS named 227 claims across 2 drugs.
Dr. Feinstein's Part D claims by kind of drug, 2024
- Generic227 claims98%
- Brand-name and other5 claims2%
Dr. Feinstein'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. Feinstein's Part D claims, 2024
- Opioids87%201 of 232 claims
- Antibiotics9%21 of 232 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: 2272024: 19315%
Drugs named by CMS: 3 in 2024, 2 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 Feinstein 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. Feinstein for performance year 2024, reported as part of a group. Dr. Feinstein accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Feinstein's MIPS scores, performance year 2024
- 92of 100Final score
- 98of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 75of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Removal of nail tissue: 1 to 10 procedures (CMS shows small counts as a range)
Removal of skin lesions: 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 Feinstein received $8,454 in industry payments from 2016 to 2025
CMS Open Payments shows 68 general payments to Dr. Feinstein from 22 drug and device companies from 2016 to 2025. Education make up the largest share, 60% of the total. Elite Orthopedics, LLC paid the most, $5,047.
General payments to Dr. Feinstein by program year, 2016 to 2025
General payments to Dr. Feinstein by kind, 2016 to 2025
- Education$5,08560%
- Food and beverage$2,67832%
- Travel and lodging$6798%
- Entertainment$120%
Companies that paid Dr. Feinstein 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 Feinstein graduated from Saint Louis University School of Medicine
Dr. Feinstein graduated from Saint Louis University School of Medicine in 1993.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. William Feinstein'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 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 Feinstein
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 Feinstein's NPI number?
Dr. William Feinstein's NPI number is 1144373341. It was assigned on January 19, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. William Feinstein?
Dr. William Feinstein is an orthopaedic hand surgery physician in Saint Louis, Missouri. The primary specialty in the NPI Registry is Orthopaedic Hand Surgery Physician (taxonomy code 207XS0106X).
Where does Dr. William Feinstein practice?
Dr. Feinstein practices at 1050 Old Des Peres Rd STE 40, Saint Louis, MO 63131. Dr. Feinstein's primary practice is Des Peres Square Surgery Center - HOPD in Saint Louis, Missouri. Dmand AI also links Dr. Feinstein to 2 hospitals, 1 group practice or clinic and 1 ambulatory surgery center.
What is Dr. William Feinstein's medical license number?
Dr. Feinstein holds Missouri license 2000155783.
Which hospitals is Dr. William Feinstein affiliated with?
Dr. Feinstein is affiliated with Missouri Baptist Medical Center. Dmand AI links Dr. Feinstein to 3 more hospitals.
What medical group is Dr. William Feinstein part of?
Dr. Feinstein is linked to Orthopedic Associates.
Does Dr. William Feinstein accept Medicare?
Yes. CMS data shows Dr. Feinstein billed Medicare for 1,377 services in 2024, and Dr. Feinstein accepts Medicare assignment.
What is Dr. William Feinstein's MIPS score?
Dr. Feinstein's MIPS final score for performance year 2024 is 92 out of 100, reported as part of a group.
How many Medicare patients does Dr. William Feinstein see?
CMS counts 433 Medicare patients who saw Dr. Feinstein in 2024, with an average age of 74.
What services does Dr. William Feinstein bill to Medicare?
In 2024, Dr. Feinstein's most billed Medicare services were injected or infused drug (J3301), office visit, established patient (99213) and surgery: bones and joints (20550).
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Where did Dr. William Feinstein go to medical school?
Dr. Feinstein graduated from Saint Louis University School of Medicine in 1993.
What drugs does Dr. William Feinstein prescribe most?
In 2024 Medicare Part D data, Dr. Feinstein's most prescribed drugs by claims were Tramadol HCl-Acetaminophen, Cephalexin and Oxycodone-Acetaminophen.
Has Dr. William Feinstein received payments from drug or device companies?
CMS Open Payments shows $8,454 in general payments to Dr. Feinstein from 22 companies from 2016 to 2025. The largest total came from Elite Orthopedics, LLC.
How long has Dr. William Feinstein been practicing?
Dr. Feinstein graduated from medical school in 1993, 33 years ago.
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