Dr. William David Karczewski, MD
- Medicare services, 2024
- 3,884
- Medicare patients, 2024
- 2,906
- MIPS score, 2024
- 93
- Hospital affiliations
- 6
- Industry payments
- $222
- Practice address
- 1105 Sixth Street, Traverse City, MI 49684
- Practice phone
- Call (231) 935-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Karczewski'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. William David Karczewski is a diagnostic radiologist in Traverse City, Michigan
Dr. Karczewski practices at Munson Medical Center in Traverse City, Michigan, part of Munson Healthcare.
Dr. Karczewski's NPI, 1275896490, was assigned on June 21, 2012. Dr. Karczewski graduated from Wayne State University School of Medicine in 2012. Dr. Karczewski holds Michigan license 4301100753.
- NPI
- 1275896490NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7012145824
- NPI enumeration date
- June 21, 2012
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (231) 935-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 40
- Medical school graduation
- 2012
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. William David Karczewski practices at Munson Medical Center in Traverse City, Michigan
Dr. Karczewski's primary practice is Munson Medical Center, at 1105 Sixth Street, Traverse City, MI 49684 in Grand Traverse County. The practice phone is (231) 935-5000.
- Munson Medical Center1105 Sixth Street, Traverse City, MI 49684 · Grand Traverse CountyPhone(231) 935-5000
Source: Dmand AI Affiliation Data
Dr. William David Karczewski is affiliated with 10 sites of care and 15 medical groups
Dr. Karczewski's primary practice is Munson Medical Center in Traverse City, Michigan, part of Munson Healthcare. Dr. Karczewski is also affiliated with Cox Medical Center South. The medical group on file is Grand Traverse Radiologists. Dmand AI also links Dr. Karczewski to 4 more hospitals, 14 medical groups and 4 group practices and clinics, 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. William David Karczewski's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Karczewski practices, 10 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Munson Medical Center | Available with a free account |
| +9 more sites and 14 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 Munson Healthcare and 6.2K+ hospitals, with verified contacts in the same login.
Dr. William David Karczewski is one of 1,181 diagnostic radiologists in Michigan
Diagnostic radiology is Dr. Karczewski's primary specialty in the NPI Registry, under taxonomy code 2085R0202X. Dr. Karczewski is licensed in Michigan.
Specialties and state licenses
- Diagnostic radiology, MichiganPrimary
Diagnostic radiologists near Dr. Karczewski
Counts of diagnostic radiologists 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. William David Karczewski billed Medicare for 3,884 services in 2024
CMS data shows 3,884 Medicare services from Dr. Karczewski across 51 procedure codes in 2024, for 2,906 Medicare patients. Medicare paid $123,082 for them.
Dr. Karczewski's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Imaging
- 2023: 4,2512024: 3,77011%
- Tests and treatments
- 2023: 492024: 6022%
- Other services
- 2023: 632024: 5414%
Where Dr. Karczewski's Medicare services took place, 2024
- In an office47912%
- In a facility3,40588%
Dr. Karczewski compared with the Michigan median for diagnostic radiologists, 2024
- Dr. Karczewski
- Michigan median
- Medicare services
- 3,884vs 1,6582.3 times
- Medicare patients
- 2,906vs 1,3012.2 times
Medians across 1,132 diagnostic radiologists in Michigan with Dmand AI profiles that report each measure.
Dr. Karczewski'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.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. William David Karczewski treated 2,906 Medicare patients in 2024, average age 74
CMS counts 2,906 Medicare patients who saw Dr. Karczewski in 2024. The largest group is 65 to 74, with 1,353 patients. 75% of them have high cholesterol, and 72% have high blood pressure. 16% are also on Medicaid. Their average risk score is 1.36, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Karczewski's median patient age at 64, with 54% women.
Dr. Karczewski's Medicare patients by age, 2024
Dr. Karczewski's Medicare patients by sex, 2024
- Women1,72559%
- Men1,18141%
Chronic conditions among Dr. Karczewski's Medicare patients, 2024
- High cholesterol75%
- High blood pressure72%
- Arthritis47%
- Diabetes29%
- Ischemic heart disease29%
- Mood disorders29%
- Chronic kidney disease28%
- Anxiety27%
Share of Medicare patients with each condition. A patient can have several.
Dr. Karczewski's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 64
Patient panel by sex, all payers
- Women54%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. William David Karczewski scored 93 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 93 out of 100 for Dr. Karczewski for performance year 2024, reported as part of a group. Dr. Karczewski accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Karczewski's MIPS scores, performance year 2024
- 93of 100Final score
- 91.3of 100Quality
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. William David Karczewski received $222 in industry payments in 2024
CMS Open Payments shows 1 general payment to Dr. Karczewski from 1 drug or device company in 2024. Food and beverage make up the largest share, 100% of the total. Siemens Medical Solutions USA, Inc. paid the most, $222.
Companies that paid Dr. Karczewski the most, 2024 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. William David Karczewski graduated from Wayne State University School of Medicine
Dr. Karczewski graduated from Wayne State University School of Medicine in 2012.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. William David Karczewski'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)Clinician Public Reporting: Overall MIPS Performance (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. William David Karczewski
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. William David Karczewski's NPI number?
Dr. William David Karczewski's NPI number is 1275896490. It was assigned on June 21, 2012, and it is active in the NPI Registry.
What kind of doctor is Dr. William David Karczewski?
Dr. William David Karczewski is a diagnostic radiologist in Traverse City, Michigan. The primary specialty in the NPI Registry is Diagnostic Radiology Physician (taxonomy code 2085R0202X).
Where does Dr. William David Karczewski practice?
Dr. Karczewski practices at 1105 Sixth Street, Traverse City, MI 49684. Dr. Karczewski's primary practice is Munson Medical Center in Traverse City, Michigan, part of Munson Healthcare. Dmand AI also links Dr. Karczewski to 4 hospitals, 14 medical groups and 4 group practices and clinics.
What is Dr. William David Karczewski's office phone number?
The practice phone on file for Dr. Karczewski is (231) 935-5000.
What is Dr. William David Karczewski's medical license number?
Dr. Karczewski holds Michigan license 4301100753.
Which hospitals is Dr. William David Karczewski affiliated with?
Dr. Karczewski practices at Munson Medical Center in Traverse City, Michigan. Dr. Karczewski is also affiliated with Cox Medical Center South. Dmand AI links Dr. Karczewski to 4 more hospitals.
What medical group is Dr. William David Karczewski part of?
Dr. Karczewski is linked to Grand Traverse Radiologists. Dmand AI links Dr. Karczewski to 14 more medical groups.
Does Dr. William David Karczewski accept Medicare?
Yes. CMS data shows Dr. Karczewski billed Medicare for 3,884 services in 2024, and Dr. Karczewski accepts Medicare assignment.
What is Dr. William David Karczewski's MIPS score?
Dr. Karczewski's MIPS final score for performance year 2024 is 93 out of 100, reported as part of a group.
How many Medicare patients does Dr. William David Karczewski see?
CMS counts 2,906 Medicare patients who saw Dr. Karczewski in 2024, with an average age of 74.
Show 4 more questionsShow fewer questions
What services does Dr. William David Karczewski bill to Medicare?
In 2024, Dr. Karczewski's most billed Medicare services were diagnostic imaging (71045), radiation oncology (77067) and radiation oncology (77063).
Where did Dr. William David Karczewski go to medical school?
Dr. Karczewski graduated from Wayne State University School of Medicine in 2012.
Has Dr. William David Karczewski received payments from drug or device companies?
CMS Open Payments shows $222 in general payments to Dr. Karczewski from 1 company from 2024 to 2024. The largest total came from Siemens Medical Solutions USA, Inc.
How long has Dr. William David Karczewski been practicing?
Dr. Karczewski graduated from medical school in 2012, 14 years ago.
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