Dr. Stephanie Lynn Judd Irwin, MD
- Medicare services, 2024
- 28
- Medicare patients, 2024
- 45
- Part D claims, 2024
- 307
- Hospital affiliations
- 3
- Industry payments
- $1,463
- Practice address
- 1615 Maple Lane, Ashland, WI 54806
- Practice phone
- Call (715) 685-5500
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Judd Irwin's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Stephanie Lynn Judd Irwin is a gastroenterologist in Ashland, Wisconsin
Dr. Judd Irwin practices at Tamarack Health Ashland Medical Center in Ashland, Wisconsin, part of Tamarack Health.
Dr. Judd Irwin's NPI, 1831328707, was assigned on July 13, 2009. Dr. Judd Irwin graduated from Wayne State University School of Medicine in 2009. Dr. Judd Irwin holds Michigan license 4301094318.
- NPI
- 1831328707NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7214273895
- NPI enumeration date
- July 13, 2009
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (715) 685-5500
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 43
- Medical school graduation
- 2009
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Stephanie Lynn Judd Irwin practices at Tamarack Health Ashland Medical Center in Ashland, Wisconsin
Dr. Judd Irwin's primary practice is Tamarack Health Ashland Medical Center, at 1615 Maple Lane, Ashland, WI 54806 in Ashland County. The practice phone is (715) 685-5500.
- Tamarack Health Ashland Medical Center1615 Maple Lane, Ashland, WI 54806 · Ashland CountyPhone(715) 685-5500
Source: Dmand AI Affiliation Data
Dr. Stephanie Lynn Judd Irwin is affiliated with 3 sites of care and 3 medical groups
Dr. Judd Irwin's primary practice is Tamarack Health Ashland Medical Center in Ashland, Wisconsin, part of Tamarack Health. Dr. Judd Irwin is also affiliated with Aspirus Ironwood Hospital. The medical group on file is Aspirus St. Luke's Hospital. Dmand AI also links Dr. Judd Irwin to 1 more hospital and 2 medical groups, each named with a free account. Dr. Judd Irwin's employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Stephanie Lynn Judd Irwin's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Judd Irwin practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Tamarack Health Ashland Medical Center | Available with a free account |
| +2 more sites and 2 medical groups | 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 Tamarack Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Stephanie Lynn Judd Irwin is one of 277 gastroenterologists in Wisconsin
Gastroenterology is Dr. Judd Irwin's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Judd Irwin is licensed in Michigan.
Specialties and state licenses
- Gastroenterology, MichiganPrimary
Gastroenterologists near Dr. Judd Irwin
Counts of gastroenterologists 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. Stephanie Lynn Judd Irwin billed Medicare for 28 services in 2024
CMS data shows 28 Medicare services from Dr. Judd Irwin across 2 procedure codes in 2024, for 45 Medicare patients. Medicare paid $3,559 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Judd Irwin's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Surgery
- 2023: 1092024: 2874%
- Office and hospital visits
- 2023: 882024: 0100%
Dr. Judd Irwin compared with the Wisconsin median for gastroenterologists, 2024
- Dr. Judd Irwin
- Wisconsin median
- Medicare services
- 28vs 32991% below
- Medicare patients
- 45vs 25883% below
- Part D claims
- 225vs 42948% below
Medians across 278 gastroenterologists in Wisconsin with Dmand AI profiles that report each measure.
Dr. Judd 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. Judd Irwin?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Judd Irwin and other gastroenterologists in Wisconsin.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Stephanie Lynn Judd Irwin treated 45 Medicare patients in 2024, average age 71
CMS counts 45 Medicare patients who saw Dr. Judd Irwin in 2024. The largest group is 65 to 74, with 21 patients. 69% of them have high cholesterol, and 56% have high blood pressure. 24% are also on Medicaid. Their average risk score is 1.01, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Judd Irwin's median patient age at 63, with 72% women.
Dr. Judd Irwin's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Judd Irwin's Medicare patients by sex, 2024
- Women2862%
- Men1738%
Chronic conditions among Dr. Judd Irwin's Medicare patients, 2024
- High cholesterol69%
- High blood pressure56%
- Arthritis40%
- Diabetes29%
- COPD27%
- Mood disorders27%
- Asthma24%
- Atrial fibrillation24%
Share of Medicare patients with each condition. A patient can have several.
Dr. Judd 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
- Women72%
- Men28%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Stephanie Lynn Judd Irwin wrote 307 Medicare Part D claims in 2024
In 2024, Dr. Judd Irwin wrote 307 Medicare Part D claims for 161 patients. 74% of them were for generic drugs. CMS names the drug for 225 of them, across 7 drugs with 11 or more claims each, at $98,492 in total drug cost. In 2023, CMS named 380 claims across 5 drugs.
Dr. Judd Irwin's Part D claims by kind of drug, 2024
- Generic228 claims74%
- Brand-name79 claims26%
Dr. Judd Irwin'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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 3802024: 22541%
Drugs named by CMS: 7 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. Stephanie Lynn Judd Irwin takes part in Medicare
Dr. Judd Irwin accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Colonoscopy: 1 to 10 procedures (CMS shows small counts as a range)
Upper gastrointestinal (GI) endoscopy for acid reflux: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Stephanie Lynn Judd Irwin received $1,463 in industry payments from 2016 to 2020
CMS Open Payments shows 91 general payments to Dr. Judd Irwin from 14 drug and device companies from 2016 to 2020. Food and beverage make up the largest share, 98% of the total. Abbvie Inc. paid the most, $680.
General payments to Dr. Judd Irwin by program year, 2016 to 2020
General payments to Dr. Judd Irwin by kind, 2016 to 2020
- Food and beverage$1,43398%
- Honoraria$302%
Companies that paid Dr. Judd Irwin the most, 2016 to 2020
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Stephanie Lynn Judd Irwin graduated from Wayne State University School of Medicine
Dr. Judd Irwin graduated from Wayne State University School of Medicine in 2009.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Stephanie Lynn Judd 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) |
| 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)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. Stephanie Lynn Judd 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. Stephanie Lynn Judd Irwin's NPI number?
Dr. Stephanie Lynn Judd Irwin's NPI number is 1831328707. It was assigned on July 13, 2009, and it is active in the NPI Registry.
What kind of doctor is Dr. Stephanie Lynn Judd Irwin?
Dr. Stephanie Lynn Judd Irwin is a gastroenterologist in Ashland, Wisconsin. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Stephanie Lynn Judd Irwin practice?
Dr. Judd Irwin practices at 1615 Maple Lane, Ashland, WI 54806. Dr. Judd Irwin's primary practice is Tamarack Health Ashland Medical Center in Ashland, Wisconsin, part of Tamarack Health. Dmand AI also links Dr. Judd Irwin to 1 hospital and 2 medical groups.
What is Dr. Stephanie Lynn Judd Irwin's office phone number?
The practice phone on file for Dr. Judd Irwin is (715) 685-5500.
What is Dr. Stephanie Lynn Judd Irwin's medical license number?
Dr. Judd Irwin holds Michigan license 4301094318.
Which hospitals is Dr. Stephanie Lynn Judd Irwin affiliated with?
Dr. Judd Irwin practices at Tamarack Health Ashland Medical Center in Ashland, Wisconsin. Dr. Judd Irwin is also affiliated with Aspirus Ironwood Hospital. Dmand AI links Dr. Judd Irwin to 1 more hospital.
What medical group is Dr. Stephanie Lynn Judd Irwin part of?
Dr. Judd Irwin is linked to Aspirus St. Luke's Hospital. Dmand AI links Dr. Judd Irwin to 2 more medical groups.
Does Dr. Stephanie Lynn Judd Irwin accept Medicare?
Yes. CMS data shows Dr. Judd Irwin billed Medicare for 28 services in 2024, and Dr. Judd Irwin accepts Medicare assignment.
How many Medicare patients does Dr. Stephanie Lynn Judd Irwin see?
CMS counts 45 Medicare patients who saw Dr. Judd Irwin in 2024, with an average age of 71.
What services does Dr. Stephanie Lynn Judd Irwin bill to Medicare?
In 2024, Dr. Judd Irwin's most billed Medicare services were surgery: digestive system (45385) and surgery: digestive system (43239).
Show 4 more questionsShow fewer questions
Where did Dr. Stephanie Lynn Judd Irwin go to medical school?
Dr. Judd Irwin graduated from Wayne State University School of Medicine in 2009.
What drugs does Dr. Stephanie Lynn Judd Irwin prescribe most?
In 2024 Medicare Part D data, Dr. Judd Irwin's most prescribed drugs by claims were Omeprazole, Pantoprazole Sodium and Peg 3350-Electrolyte.
Has Dr. Stephanie Lynn Judd Irwin received payments from drug or device companies?
CMS Open Payments shows $1,463 in general payments to Dr. Judd Irwin from 14 companies from 2016 to 2020. The largest total came from Abbvie Inc.
How long has Dr. Stephanie Lynn Judd Irwin been practicing?
Dr. Judd Irwin graduated from medical school in 2009, 17 years ago.
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