Dr. David P. Matthews, MD
- Medicare services, 2024
- 223
- Medicare patients, 2024
- 216
- Part D claims, 2024
- 380
- Hospital affiliations
- 2
- Industry payments
- $442
- Practice address
- N2950 State Road 67, Lake Geneva, WI 53147
- Practice phone
- Call (262) 245-0535
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Matthews' professional email, personal email and mobile number
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Dr. David P. Matthews is an emergency medicine physician in Lake Geneva, Wisconsin
Dr. Matthews practices at Mercyhealth Hospital and Medical Center-Walworth in Lake Geneva, Wisconsin, part of Mercyhealth.
Dr. Matthews' NPI, 1518949882, was assigned on November 14, 2005. Dr. Matthews graduated from University of Wisconsin School of Medicine in 1993. Dr. Matthews holds Wisconsin license 36259.
- NPI
- 1518949882NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5294778296
- NPI enumeration date
- November 14, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (262) 245-0535
- 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. David P. Matthews practices at 2 locations in Lake Geneva, Wisconsin
Dr. Matthews' primary practice is Mercyhealth Hospital and Medical Center-Walworth, at N2950 State Road 67, Lake Geneva, WI 53147 in Walworth County. The practice phone is (262) 245-0535. Dr. Matthews also practices at Mercyhealth Hospital and Medical Center- Walworth, 2950 State Rd 67, Lake Geneva, WI 53147.
- Mercyhealth Hospital and Medical Center-WalworthPrimaryN2950 State Road 67, Lake Geneva, WI 53147 · Walworth CountyPhone(262) 245-0535
- Mercyhealth Hospital and Medical Center- Walworth2950 State Rd 67, Lake Geneva, WI 53147 · Walworth CountyPhone(262) 245-0535
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Dr. David P. Matthews is affiliated with 4 sites of care and 1 medical group
Dr. Matthews' primary practice is Mercyhealth Hospital and Medical Center-Walworth in Lake Geneva, Wisconsin, part of Mercyhealth. Dr. Matthews is also affiliated with Mercyhealth Hospital and Trauma Center-Janesville. The medical group on file is Mercyhealth. Dmand AI also links Dr. Matthews to 1 more group practice or clinic and 1 therapy and rehab clinic, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. David P. Matthews' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Matthews practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mercyhealth Hospital and Medical Center-Walworth | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Mercyhealth and 6.2K+ hospitals, with verified contacts in the same login.
Dr. David P. Matthews is one of 1,211 emergency medicine physicians in Wisconsin
Emergency medicine is Dr. Matthews' primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Matthews is licensed in Wisconsin.
Specialties and state licenses
- Emergency medicine, WisconsinPrimary
Emergency medicine physicians near Dr. Matthews
Counts of emergency medicine 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. David P. Matthews billed Medicare for 223 services in 2024
CMS data shows 223 Medicare services from Dr. Matthews across 5 procedure codes in 2024, for 216 Medicare patients. Medicare paid $20,612 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Matthews' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1142024: 19773%
- Tests and treatments
- 2023: 642024: 2659%
Dr. Matthews compared with the Wisconsin median for emergency medicine physicians, 2024
- Dr. Matthews
- Wisconsin median
- Medicare services
- 223vs 2469% below
- Medicare patients
- 216vs 221Close to median
- Part D claims
- 247vs 574.3 times
Medians across 1,249 emergency medicine physicians in Wisconsin with Dmand AI profiles that report each measure.
Dr. Matthews' 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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. David P. Matthews treated 216 Medicare patients in 2024, average age 73
CMS counts 216 Medicare patients who saw Dr. Matthews in 2024. The largest group is 65 to 74, with 87 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 23% 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. Matthews' median patient age at 55, with 56% women.
Dr. Matthews' Medicare patients by age, 2024
Dr. Matthews' Medicare patients by sex, 2024
- Women12056%
- Men9644%
Chronic conditions among Dr. Matthews' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis45%
- Mood disorders42%
- Depression39%
- Anxiety37%
- Diabetes34%
- Chronic kidney disease33%
Share of Medicare patients with each condition. A patient can have several.
Dr. Matthews' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 55
Patient panel by sex, all payers
- Women56%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. David P. Matthews wrote 380 Medicare Part D claims in 2024
In 2024, Dr. Matthews wrote 380 Medicare Part D claims for 259 patients. 97% of them were for generic drugs. CMS names the drug for 247 of them, across 10 drugs with 11 or more claims each, at $1,299 in total drug cost. In 2023, CMS named 66 claims across 5 drugs.
Dr. Matthews' Part D claims by kind of drug, 2024
- Generic370 claims97%
- Brand-name and other10 claims3%
Dr. Matthews' 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. Matthews' Part D claims, 2024
- Opioids18%67 of 380 claims
- Antibiotics31%116 of 380 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: 662024: 247274%
Drugs named by CMS: 10 in 2024, 5 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
How Dr. David P. Matthews takes part in Medicare
Dr. Matthews accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. David P. Matthews received $442 in industry payments from 2016 to 2018
CMS Open Payments shows 16 general payments to Dr. Matthews from 3 drug and device companies from 2016 to 2018. Food and beverage make up the largest share, 100% of the total. Allergan Inc. paid the most, $335.
General payments to Dr. Matthews by program year, 2016 to 2018
Companies that paid Dr. Matthews the most, 2016 to 2018
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. David P. Matthews graduated from University of Wisconsin School of Medicine
Dr. Matthews graduated from University of Wisconsin School of Medicine in 1993.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. David P. Matthews'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 Affiliation DataDmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand 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 | Doctors and Clinicians National Downloadable File (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. David P. Matthews
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What is Dr. David P. Matthews' NPI number?
Dr. David P. Matthews' NPI number is 1518949882. It was assigned on November 14, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. David P. Matthews?
Dr. David P. Matthews is an emergency medicine physician in Lake Geneva, Wisconsin. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. David P. Matthews practice?
Dr. Matthews practices at N2950 State Road 67, Lake Geneva, WI 53147. Dr. Matthews also practices at 2950 State Rd 67, Lake Geneva, WI 53147. Dr. Matthews' primary practice is Mercyhealth Hospital and Medical Center-Walworth in Lake Geneva, Wisconsin, part of Mercyhealth. Dmand AI also links Dr. Matthews to 1 group practice or clinic and 1 therapy and rehab clinic.
What is Dr. David P. Matthews' office phone number?
The practice phone on file for Dr. Matthews is (262) 245-0535.
What is Dr. David P. Matthews' medical license number?
Dr. Matthews holds Wisconsin license 36259.
Which hospitals is Dr. David P. Matthews affiliated with?
Dr. Matthews practices at Mercyhealth Hospital and Medical Center-Walworth in Lake Geneva, Wisconsin. Dr. Matthews is also affiliated with Mercyhealth Hospital and Trauma Center-Janesville.
What medical group is Dr. David P. Matthews part of?
Dr. Matthews is linked to Mercyhealth.
Does Dr. David P. Matthews accept Medicare?
Yes. CMS data shows Dr. Matthews billed Medicare for 223 services in 2024, and Dr. Matthews accepts Medicare assignment.
How many Medicare patients does Dr. David P. Matthews see?
CMS counts 216 Medicare patients who saw Dr. Matthews in 2024, with an average age of 73.
What services does Dr. David P. Matthews bill to Medicare?
In 2024, Dr. Matthews' most billed Medicare services were emergency department visit (99285), emergency department visit (99284) and heart test or procedure (93010).
Show 4 more questionsShow fewer questions
Where did Dr. David P. Matthews go to medical school?
Dr. Matthews graduated from University of Wisconsin School of Medicine in 1993.
What drugs does Dr. David P. Matthews prescribe most?
In 2024 Medicare Part D data, Dr. Matthews' most prescribed drugs by claims were Hydrocodone-Acetaminophen, Prednisone and Naproxen.
Has Dr. David P. Matthews received payments from drug or device companies?
CMS Open Payments shows $442 in general payments to Dr. Matthews from 3 companies from 2016 to 2018. The largest total came from Allergan Inc.
How long has Dr. David P. Matthews been practicing?
Dr. Matthews graduated from medical school in 1993, 33 years ago.
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