Dr. Gene Gary Karwoski, MD
- Medicare services, 2020
- 308
- Part D claims, 2022
- 28
- Hospital affiliations
- 2
- Industry payments
- $205
- State license
- 1
- Practice address
- 502 East Second Street, Duluth, MN 55805
- Practice phone
- Call (218) 786-2652
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Karwoski'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. Gene Gary Karwoski is an internist in Duluth, Minnesota
Dr. Karwoski practices at Essentia Health-Duluth (Miller-Dwan, Building D) in Duluth, Minnesota, part of Essentia Health.
Dr. Karwoski's NPI, 1326097841, was assigned on May 10, 2006. Dr. Karwoski graduated from Washington University School of Medicine in 1979. Dr. Karwoski holds Minnesota license 25668.
- NPI
- 1326097841NPI Registry (opens in a new tab)
- NPI enumeration date
- May 10, 2006
- NPI status
- Active
- Practice phone
- (218) 786-2652
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 73
- Medical school graduation
- 1979
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Gene Gary Karwoski practices at Essentia Health-Duluth (Miller-Dwan, Building D) in Duluth, Minnesota
Dr. Karwoski's primary practice is Essentia Health-Duluth (Miller-Dwan, Building D), at 502 East Second Street, Duluth, MN 55805 in St. Louis County. The practice phone is (218) 786-2652.
- Essentia Health-Duluth (Miller-Dwan, Building D)502 East Second Street, Duluth, MN 55805 · St. Louis CountyPhone(218) 786-2652
Source: Dmand AI Affiliation Data
Dr. Gene Gary Karwoski is affiliated with 2 sites of care
Dr. Karwoski's primary practice is Essentia Health-Duluth (Miller-Dwan, Building D) in Duluth, Minnesota, part of Essentia Health. Dmand AI also links Dr. Karwoski to 1 hospital, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Gene Gary Karwoski's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Karwoski practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Essentia Health-Duluth (Miller-Dwan, Building D) | 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. Gene Gary Karwoski is one of 2,322 internists in Minnesota
Internal medicine is Dr. Karwoski's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Karwoski is licensed in Minnesota.
Specialties and state licenses
- Internal medicine, MinnesotaPrimary
Internists near Dr. Karwoski
Counts of internists 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. Gene Gary Karwoski billed Medicare for 308 services in 2020
CMS data shows 308 Medicare services from Dr. Karwoski across 3 procedure codes in 2020. Medicare paid $14,879 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Karwoski's Medicare services by type, 2019 to 2020
- 2019
- 2020
- Office and hospital visits
- 2019: 6072020: 25758%
- Other services
- 2019: 832020: 5139%
Dr. Karwoski compared with the Minnesota median for internists, 2020
- Dr. Karwoski
- Minnesota median
- Medicare services
- 308vs 3368% below
- Part D claims
- 28vs 14481% below
Medians across 2,238 internists in Minnesota with Dmand AI profiles that report each measure.
Dr. Karwoski's most billed Medicare procedure codes, 2020
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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Karwoski and other internists in Minnesota.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Gene Gary Karwoski's patients have a median age of 74
Across all payers, Dmand AI patient panel data puts Dr. Karwoski's median patient age at 74, with 41% women.
Dr. Karwoski's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 74
Patient panel by sex, all payers
- Women41%
- Men59%
Source: Dmand AI Patient Panel Data
Dr. Gene Gary Karwoski wrote 28 Medicare Part D claims in 2022
In 2022, Dr. Karwoski wrote 28 Medicare Part D claims. They cover 2 drugs, with $278 in total drug cost. In 2021, CMS named 420 claims across 18 drugs.
Dr. Karwoski's most prescribed drugs by claims, 2022
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, 2021 to 2022
- 2021
- 2022
- Claims for drugs CMS names
- 2021: 4202022: 2893%
Drugs named by CMS: 2 in 2022, 18 in 2021.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Gene Gary Karwoski received $205 in industry payments from 2016 to 2017
CMS Open Payments shows 15 general payments to Dr. Karwoski from 12 drug and device companies from 2016 to 2017. Food and beverage make up the largest share, 100% of the total. Sanofi and Genzyme US Companies paid the most, $37.
General payments to Dr. Karwoski by program year, 2016 to 2017
Companies that paid Dr. Karwoski the most, 2016 to 2017
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Gene Gary Karwoski graduated from Washington University School of Medicine
Dr. Karwoski graduated from Washington University School of Medicine in 1979.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Gene Gary Karwoski'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 Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (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. Gene Gary Karwoski
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. Gene Gary Karwoski's NPI number?
Dr. Gene Gary Karwoski's NPI number is 1326097841. It was assigned on May 10, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Gene Gary Karwoski?
Dr. Gene Gary Karwoski is an internist in Duluth, Minnesota. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Gene Gary Karwoski practice?
Dr. Karwoski practices at 502 East Second Street, Duluth, MN 55805. Dr. Karwoski's primary practice is Essentia Health-Duluth (Miller-Dwan, Building D) in Duluth, Minnesota, part of Essentia Health. Dmand AI also links Dr. Karwoski to 1 hospital.
What is Dr. Gene Gary Karwoski's office phone number?
The practice phone on file for Dr. Karwoski is (218) 786-2652.
What is Dr. Gene Gary Karwoski's medical license number?
Dr. Karwoski holds Minnesota license 25668.
Which hospitals is Dr. Gene Gary Karwoski affiliated with?
Dr. Karwoski practices at Essentia Health-Duluth (Miller-Dwan, Building D) in Duluth, Minnesota. Dmand AI links Dr. Karwoski to 1 more hospital.
Does Dr. Gene Gary Karwoski accept Medicare?
Yes. CMS data shows Dr. Karwoski billed Medicare for 308 services in 2020.
What services does Dr. Gene Gary Karwoski bill to Medicare?
In 2020, Dr. Karwoski's most billed Medicare services were office visit, established patient (99213), medicare service (G0439) and office visit, established patient (99214).
Where did Dr. Gene Gary Karwoski go to medical school?
Dr. Karwoski graduated from Washington University School of Medicine in 1979.
What drugs does Dr. Gene Gary Karwoski prescribe most?
In 2022 Medicare Part D data, Dr. Karwoski's most prescribed drugs by claims were Furosemide and Sotalol.
Has Dr. Gene Gary Karwoski received payments from drug or device companies?
CMS Open Payments shows $205 in general payments to Dr. Karwoski from 12 companies from 2016 to 2017. The largest total came from Sanofi and Genzyme US Companies.
How long has Dr. Gene Gary Karwoski been practicing?
Dr. Karwoski graduated from medical school in 1979, 47 years ago.
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