Dr. H Marshall Matthews, MD
- Medicare services, 2024
- 61,253
- Medicare patients, 2024
- 169
- Part D claims, 2024
- 809
- Industry payments
- $556
- Affiliated sites
- 2
- Practice address
- 2920 Superior Ave, Sheboygan, WI 53081
- Practice phone
- Call (920) 452-6000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Sheboygan Physicians Group, SC
Sheboygan, Wisconsin
Find Dr. Matthews' professional email, personal email and mobile number
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Dr. H Marshall Matthews is a hematologist and oncologist in Sheboygan, Wisconsin
Dr. Matthews practices at Sheboygan Physicians Group, SC in Sheboygan, Wisconsin.
Dr. Matthews' NPI, 1487637856, was assigned on November 21, 2005. Dr. Matthews graduated from University of Colorado School of Medicine, Denver in 1985. Dr. Matthews holds Wisconsin license 27726.
- NPI
- 1487637856NPI Registry (opens in a new tab)
- NPI enumeration date
- November 21, 2005
- NPI status
- Active
- Practice phone
- (920) 452-6000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 67
- Medical school graduation
- 1985
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. H Marshall Matthews practices at Sheboygan Physicians Group, SC in Sheboygan, Wisconsin
Dr. Matthews' primary practice is Sheboygan Physicians Group, SC, at 2920 Superior Ave, Sheboygan, WI 53081 in Sheboygan County. The practice phone is (920) 452-6000.
- Sheboygan Physicians Group, SC2920 Superior Ave, Sheboygan, WI 53081 · Sheboygan CountyPhone(920) 452-6000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. H Marshall Matthews is affiliated with 3 sites of care and 2 medical groups
Dr. Matthews' primary practice is Sheboygan Physicians Group, SC in Sheboygan, Wisconsin. The medical group on file is Sheboygan Internal Medicine Associates. Dmand AI also links Dr. Matthews to 2 more group practices and clinics 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. H Marshall Matthews' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Matthews practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Sheboygan Physicians Group, SC | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. H Marshall Matthews is one of 277 hematologists and oncologists in Wisconsin
Hematology and oncology is Dr. Matthews' primary specialty in the NPI Registry, under taxonomy code 207RH0003X. Dr. Matthews is licensed in Wisconsin.
Specialties and state licenses
- Hematology and oncology, WisconsinPrimary
Hematologists and oncologists near Dr. Matthews
Counts of hematologists and oncologists 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. H Marshall Matthews billed Medicare for 61,253 services in 2024
CMS data shows 61,253 Medicare services from Dr. Matthews across 51 procedure codes in 2024, for 169 Medicare patients. Medicare paid $277,240 for them. Every service was in an office.
Dr. Matthews' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Other services
- 2023: 72,0122024: 31,84556%
- Drugs given in the office
- 2023: 51,4572024: 24,58152%
- Lab and pathology
- 2023: 4,8982024: 2,78243%
- Tests and treatments
- 2023: 2,3392024: 1,08054%
- Office and hospital visits
- 2023: 1,3632024: 62654%
- Surgery
- 2023: 6102024: 33944%
Dr. Matthews compared with the Wisconsin median for hematologists and oncologists, 2024
- Dr. Matthews
- Wisconsin median
- Medicare services
- 61,253vs 545112.4 times
- Medicare patients
- 169vs 172Close to median
- Part D claims
- 519vs 44616% above
Medians across 269 hematologists and oncologists 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. H Marshall Matthews treated 169 Medicare patients in 2024, average age 75
CMS counts 169 Medicare patients who saw Dr. Matthews in 2024. The largest group is 65 to 74, with 86 patients. 72% of them have high blood pressure, and 66% have high cholesterol. Their average risk score is 2.43, 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 72, with 43% women.
Dr. Matthews' Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Matthews' Medicare patients by sex, 2024
- Women9657%
- Men7343%
Chronic conditions among Dr. Matthews' Medicare patients, 2024
- High blood pressure72%
- High cholesterol66%
- Cancer52%
- Arthritis40%
- Chronic kidney disease37%
- Diabetes29%
- Ischemic heart disease29%
- Atrial fibrillation23%
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 72
Patient panel by sex, all payers
- Women43%
- Men57%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. H Marshall Matthews wrote 809 Medicare Part D claims in 2024
In 2024, Dr. Matthews wrote 809 Medicare Part D claims for 71 patients. 89% of them were for generic drugs. CMS names the drug for 519 of them, across 23 drugs with 11 or more claims each, at $291,134 in total drug cost. In 2023, CMS named 642 claims across 26 drugs.
Dr. Matthews' Part D claims by kind of drug, 2024
- Generic718 claims89%
- Brand-name91 claims11%
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
- Opioids13%108 of 809 claims
- Antibiotics7%55 of 809 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: 6422024: 51919%
Drugs named by CMS: 23 in 2024, 26 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
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Dr. H Marshall Matthews received $556 in industry payments from 2016 to 2024
CMS Open Payments shows 31 general payments to Dr. Matthews from 18 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 85% of the total. Novartis Pharmaceuticals Corporation paid the most, $100.
General payments to Dr. Matthews by program year, 2016 to 2024
General payments to Dr. Matthews by kind, 2016 to 2024
- Food and beverage$47485%
- Education$8215%
Companies that paid Dr. Matthews the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. H Marshall Matthews graduated from University of Colorado School of Medicine, Denver
Dr. Matthews graduated from University of Colorado School of Medicine, Denver in 1985.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. H Marshall 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 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) |
| 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. H Marshall Matthews
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. H Marshall Matthews' NPI number?
Dr. H Marshall Matthews' NPI number is 1487637856. It was assigned on November 21, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. H Marshall Matthews?
Dr. H Marshall Matthews is a hematologist and oncologist in Sheboygan, Wisconsin. The primary specialty in the NPI Registry is Hematology & Oncology Physician (taxonomy code 207RH0003X).
Where does Dr. H Marshall Matthews practice?
Dr. Matthews practices at 2920 Superior Ave, Sheboygan, WI 53081. Dr. Matthews' primary practice is Sheboygan Physicians Group, SC in Sheboygan, Wisconsin. Dmand AI also links Dr. Matthews to 2 group practices and clinics and 1 medical group.
What is Dr. H Marshall Matthews' office phone number?
The practice phone on file for Dr. Matthews is (920) 452-6000.
What is Dr. H Marshall Matthews' medical license number?
Dr. Matthews holds Wisconsin license 27726.
What medical group is Dr. H Marshall Matthews part of?
Dr. Matthews is linked to Sheboygan Internal Medicine Associates. Dmand AI links Dr. Matthews to 1 more medical group.
Does Dr. H Marshall Matthews accept Medicare?
Yes. CMS data shows Dr. Matthews billed Medicare for 61,253 services in 2024.
How many Medicare patients does Dr. H Marshall Matthews see?
CMS counts 169 Medicare patients who saw Dr. Matthews in 2024, with an average age of 75.
What services does Dr. H Marshall Matthews bill to Medicare?
In 2024, Dr. Matthews' most billed Medicare services were medicare temporary code (Q5125), injected or infused drug (J1453) and injected or infused drug (J0885).
Where did Dr. H Marshall Matthews go to medical school?
Dr. Matthews graduated from University of Colorado School of Medicine, Denver in 1985.
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What drugs does Dr. H Marshall Matthews prescribe most?
In 2024 Medicare Part D data, Dr. Matthews' most prescribed drugs by claims were Prednisone, Famotidine and Oxycodone HCl.
Has Dr. H Marshall Matthews received payments from drug or device companies?
CMS Open Payments shows $556 in general payments to Dr. Matthews from 18 companies from 2016 to 2024. The largest total came from Novartis Pharmaceuticals Corporation.
How long has Dr. H Marshall Matthews been practicing?
Dr. Matthews graduated from medical school in 1985, 41 years ago.
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