Dr. Matthew J. Irwin, MD
- Medicare services, 2024
- 227
- Medicare patients, 2024
- 342
- Hospital affiliations
- 1
- Industry payments
- $1,404
- Medical group
- 1
- Practice address
- 1000 Oakleaf Way, Altoona, WI 54720
- Practice phone
- Call (715) 895-9435
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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Dr. Matthew J. Irwin is an anesthesiologist in Altoona, Wisconsin
Dr. Irwin practices at OakLeaf Surgical Hospital in Altoona, Wisconsin, part of Surgery Partners.
Dr. Irwin's NPI, 1205862364, was assigned on June 23, 2006. Dr. Irwin graduated from University of Wisconsin School of Medicine in 2006. Dr. Irwin holds Wisconsin license 51301-20.
- NPI
- 1205862364NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8820122435
- NPI enumeration date
- June 23, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (715) 895-9435
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 46
- Medical school graduation
- 2006
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Matthew J. Irwin practices at OakLeaf Surgical Hospital in Altoona, Wisconsin
Dr. Irwin's primary practice is OakLeaf Surgical Hospital, at 1000 Oakleaf Way, Altoona, WI 54720 in Eau Claire County. The practice phone is (715) 895-9435.
- OakLeaf Surgical Hospital1000 Oakleaf Way, Altoona, WI 54720 · Eau Claire CountyPhone(715) 895-9435
Source: Dmand AI Affiliation Data
Dr. Matthew J. Irwin is affiliated with 2 sites of care and 1 medical group
Dr. Irwin's primary practice is OakLeaf Surgical Hospital in Altoona, Wisconsin, part of Surgery Partners. The medical group on file is Chippewa Valley Anesthesia Associates. Dmand AI also links Dr. Irwin to 1 more group practice or clinic, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Matthew J. Irwin's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Irwin practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| OakLeaf Surgical Hospital | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Matthew J. Irwin is one of 1,001 anesthesiologists in Wisconsin
Anesthesiology is Dr. Irwin's primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dr. Irwin is licensed in Wisconsin.
Specialties and state licenses
- Anesthesiology, WisconsinPrimary
Anesthesiologists near Dr. Irwin
Counts of anesthesiologists 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. Matthew J. Irwin billed Medicare for 227 services in 2024
CMS data shows 227 Medicare services from Dr. Irwin across 7 procedure codes in 2024, for 342 Medicare patients. Medicare paid $16,036 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Irwin's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Anesthesia
- 2023: 2442024: 19719%
- Surgery
- 2023: 542024: 3044%
Dr. Irwin compared with the Wisconsin median for anesthesiologists, 2024
- Dr. Irwin
- Wisconsin median
- Medicare services
- 227vs 484.7 times
- Medicare patients
- 342vs 1192.9 times
Medians across 995 anesthesiologists in Wisconsin with Dmand AI profiles that report each measure.
Dr. Irwin'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. Irwin?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Irwin and other anesthesiologists in Wisconsin.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Matthew J. Irwin treated 342 Medicare patients in 2024, average age 73
CMS counts 342 Medicare patients who saw Dr. Irwin in 2024. The largest group is 65 to 74, with 191 patients. 68% of them have high blood pressure, and 63% have high cholesterol. 8% are also on Medicaid. Their average risk score is 1.00, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Irwin's median patient age at 63, with 62% women.
Dr. Irwin's Medicare patients by age, 2024
Dr. Irwin's Medicare patients by sex, 2024
- Women19457%
- Men14843%
Chronic conditions among Dr. Irwin's Medicare patients, 2024
- High blood pressure68%
- High cholesterol63%
- Arthritis53%
- Diabetes26%
- Chronic kidney disease23%
- Anxiety22%
- Mood disorders20%
- Cancer19%
Share of Medicare patients with each condition. A patient can have several.
Dr. Irwin's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 63
Patient panel by sex, all payers
- Women62%
- Men38%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. Matthew J. Irwin takes part in Medicare
Dr. Irwin 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. Matthew J. Irwin received $1,404 in industry payments from 2019 to 2025
CMS Open Payments shows 14 general payments to Dr. Irwin from 2 drug and device companies from 2019 to 2025. Travel and lodging make up the largest share, 81% of the total. Edwards Lifesciences Corporation paid the most, $1,380.
General payments to Dr. Irwin by program year, 2019 to 2025
General payments to Dr. Irwin by kind, 2019 to 2025
- Travel and lodging$1,14381%
- Food and beverage$26119%
Companies that paid Dr. Irwin the most, 2019 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Matthew J. Irwin graduated from University of Wisconsin School of Medicine
Dr. Irwin graduated from University of Wisconsin School of Medicine in 2006.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Matthew J. Irwin'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 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) |
| 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. Matthew J. Irwin
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. Matthew J. Irwin's NPI number?
Dr. Matthew J. Irwin's NPI number is 1205862364. It was assigned on June 23, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Matthew J. Irwin?
Dr. Matthew J. Irwin is an anesthesiologist in Altoona, Wisconsin. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does Dr. Matthew J. Irwin practice?
Dr. Irwin practices at 1000 Oakleaf Way, Altoona, WI 54720. Dr. Irwin's primary practice is OakLeaf Surgical Hospital in Altoona, Wisconsin, part of Surgery Partners. Dmand AI also links Dr. Irwin to 1 group practice or clinic.
What is Dr. Matthew J. Irwin's office phone number?
The practice phone on file for Dr. Irwin is (715) 895-9435.
What is Dr. Matthew J. Irwin's medical license number?
Dr. Irwin holds Wisconsin license 51301-20.
Which hospitals is Dr. Matthew J. Irwin affiliated with?
Dr. Irwin practices at OakLeaf Surgical Hospital in Altoona, Wisconsin.
What medical group is Dr. Matthew J. Irwin part of?
Dr. Irwin is linked to Chippewa Valley Anesthesia Associates.
Does Dr. Matthew J. Irwin accept Medicare?
Yes. CMS data shows Dr. Irwin billed Medicare for 227 services in 2024, and Dr. Irwin accepts Medicare assignment.
How many Medicare patients does Dr. Matthew J. Irwin see?
CMS counts 342 Medicare patients who saw Dr. Irwin in 2024, with an average age of 73.
What services does Dr. Matthew J. Irwin bill to Medicare?
In 2024, Dr. Irwin's most billed Medicare services were anesthesia (00142), anesthesia (01402) and surgery: brain, spine and nerves (64447).
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Where did Dr. Matthew J. Irwin go to medical school?
Dr. Irwin graduated from University of Wisconsin School of Medicine in 2006.
Has Dr. Matthew J. Irwin received payments from drug or device companies?
CMS Open Payments shows $1,404 in general payments to Dr. Irwin from 2 companies from 2019 to 2025. The largest total came from Edwards Lifesciences Corporation.
How long has Dr. Matthew J. Irwin been practicing?
Dr. Irwin graduated from medical school in 2006, 20 years ago.
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