Dr. Joel A. Zamzow, MD
- Medicare services, 2024
- 1,058
- Medicare patients, 2024
- 137
- Part D claims, 2024
- 749
- Industry payments
- $976
- Affiliated sites
- 1
- Practice address
- 1000 E 1st St, Duluth, MN 55805
- Practice phone
- Call (218) 249-5555
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Aspirus St. Luke's Hospital
Duluth, Minnesota
Find Dr. Zamzow's professional email, personal email and mobile number
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Dr. Joel A. Zamzow is an orthopedic surgeon in Duluth, Minnesota
Dr. Zamzow practices at Aspirus St. Luke's Hospital in Duluth, Minnesota.
Dr. Zamzow's NPI, 1053316554, was assigned on June 20, 2005. Dr. Zamzow graduated from University of Minnesota Medical School in 1988. Dr. Zamzow holds Minnesota license 37576.
- NPI
- 1053316554NPI Registry (opens in a new tab)
- NPI enumeration date
- June 20, 2005
- NPI status
- Active
- Practice phone
- (218) 249-5555
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 64
- Medical school graduation
- 1988
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Joel A. Zamzow practices at Aspirus St. Luke's Hospital in Duluth, Minnesota
Dr. Zamzow's primary practice is Aspirus St. Luke's Hospital, at 1000 E 1st St, Duluth, MN 55805 in Saint Louis County. The practice phone is (218) 249-5555.
- Aspirus St. Luke's Hospital1000 E 1st St, Duluth, MN 55805 · Saint Louis CountyPhone(218) 249-5555
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Joel A. Zamzow is affiliated with 2 sites of care and 3 medical groups
Dr. Zamzow's primary practice is Aspirus St. Luke's Hospital in Duluth, Minnesota. The medical group on file is Orthopaedic Associates of Duluth. Dmand AI also links Dr. Zamzow to 2 more medical groups and 1 group practice or clinic, 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. Joel A. Zamzow's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Zamzow practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Aspirus St. Luke's Hospital | Available with a free account |
| +1 more site and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Joel A. Zamzow is one of 533 orthopedic surgeons in Minnesota
Orthopaedic surgery is Dr. Zamzow's primary specialty in the NPI Registry, under taxonomy code 207X00000X. Dr. Zamzow is board certified in orthopaedic surgery by the American Board of Orthopaedic Surgery. Dr. Zamzow is licensed in Minnesota.
Specialties and state licenses
- Orthopaedic surgery, MinnesotaPrimary
Orthopedic surgeons near Dr. Zamzow
Counts of orthopedic surgeons 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. Joel A. Zamzow billed Medicare for 1,058 services in 2024
CMS data shows 1,058 Medicare services from Dr. Zamzow across 10 procedure codes in 2024, for 137 Medicare patients. Medicare paid $23,973 for them. Every service was in an office.
Dr. Zamzow's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Drugs given in the office
- 2023: 5882024: 6053%
- Office and hospital visits
- 2023: 2512024: 22012%
- Surgery
- 2023: 1532024: 11823%
- Imaging
- 2023: 1572024: 11527%
Dr. Zamzow compared with the Minnesota median for orthopedic surgeons, 2024
- Dr. Zamzow
- Minnesota median
- Medicare services
- 1,058vs 3463.1 times
- Medicare patients
- 137vs 16517% below
- Part D claims
- 663vs 689.8 times
Medians across 514 orthopedic surgeons in Minnesota with Dmand AI profiles that report each measure.
Dr. Zamzow'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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Zamzow and other orthopedic surgeons in Minnesota.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Joel A. Zamzow treated 137 Medicare patients in 2024, average age 73
CMS counts 137 Medicare patients who saw Dr. Zamzow in 2024. The largest group is 65 to 74, with 59 patients. 75% of them have arthritis, and 70% have high blood pressure. 17% are also on Medicaid. Their average risk score is 1.10, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Zamzow's median patient age at 73, with 65% women.
Dr. Zamzow's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Zamzow's Medicare patients by sex, 2024
- Women8562%
- Men5238%
Chronic conditions among Dr. Zamzow's Medicare patients, 2024
- Arthritis75%
- High blood pressure70%
- High cholesterol64%
- Anxiety31%
- Mood disorders31%
- Depression25%
- Diabetes25%
- Osteoporosis18%
Share of Medicare patients with each condition. A patient can have several.
Dr. Zamzow's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 73
Patient panel by sex, all payers
- Women65%
- Men35%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Joel A. Zamzow wrote 749 Medicare Part D claims in 2024
In 2024, Dr. Zamzow wrote 749 Medicare Part D claims for 275 patients. 99% of them were for generic drugs. CMS names the drug for 663 of them, across 10 drugs with 11 or more claims each, at $3,317 in total drug cost. In 2023, CMS named 781 claims across 11 drugs.
Dr. Zamzow's Part D claims by kind of drug, 2024
- Generic738 claims99%
- Brand-name11 claims1%
Dr. Zamzow'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.
Drug classes CMS tracks in Dr. Zamzow's Part D claims, 2024
- Opioids47%354 of 749 claims
- Antibiotics34%255 of 749 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: 7812024: 66315%
Drugs named by CMS: 10 in 2024, 11 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. Joel A. Zamzow received $976 in industry payments from 2016 to 2024
CMS Open Payments shows 17 general payments to Dr. Zamzow from 7 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 100% of the total. Stryker Corporation paid the most, $828.
General payments to Dr. Zamzow by program year, 2016 to 2024
Companies that paid Dr. Zamzow 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. Joel A. Zamzow graduated from University of Minnesota Medical School
Dr. Zamzow graduated from University of Minnesota Medical School in 1988.
- Medical school
- Board certified in orthopaedic surgery
Source: Dmand AI Professional Profile Data
Sources for Dr. Joel A. Zamzow'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. Joel A. Zamzow
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. Joel A. Zamzow's NPI number?
Dr. Joel A. Zamzow's NPI number is 1053316554. It was assigned on June 20, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Joel A. Zamzow?
Dr. Joel A. Zamzow is an orthopedic surgeon in Duluth, Minnesota. The primary specialty in the NPI Registry is Orthopaedic Surgery Physician (taxonomy code 207X00000X).
Where does Dr. Joel A. Zamzow practice?
Dr. Zamzow practices at 1000 E 1st St, Duluth, MN 55805. Dr. Zamzow's primary practice is Aspirus St. Luke's Hospital in Duluth, Minnesota. Dmand AI also links Dr. Zamzow to 2 medical groups and 1 group practice or clinic.
What is Dr. Joel A. Zamzow's office phone number?
The practice phone on file for Dr. Zamzow is (218) 249-5555.
What is Dr. Joel A. Zamzow's medical license number?
Dr. Zamzow holds Minnesota license 37576.
What medical group is Dr. Joel A. Zamzow part of?
Dr. Zamzow is linked to Orthopaedic Associates of Duluth. Dmand AI links Dr. Zamzow to 2 more medical groups.
Does Dr. Joel A. Zamzow accept Medicare?
Yes. CMS data shows Dr. Zamzow billed Medicare for 1,058 services in 2024.
How many Medicare patients does Dr. Joel A. Zamzow see?
CMS counts 137 Medicare patients who saw Dr. Zamzow in 2024, with an average age of 73.
Is Dr. Joel A. Zamzow board certified?
Yes. Dr. Zamzow is board certified in orthopaedic surgery by the American Board of Orthopaedic Surgery.
What services does Dr. Joel A. Zamzow bill to Medicare?
In 2024, Dr. Zamzow's most billed Medicare services were injected or infused drug (J3301), office visit, established patient (99213) and surgery: bones and joints (20610).
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Where did Dr. Joel A. Zamzow go to medical school?
Dr. Zamzow graduated from University of Minnesota Medical School in 1988.
What drugs does Dr. Joel A. Zamzow prescribe most?
In 2024 Medicare Part D data, Dr. Zamzow's most prescribed drugs by claims were Tramadol HCl, Oxycodone HCl and Cephalexin.
Has Dr. Joel A. Zamzow received payments from drug or device companies?
CMS Open Payments shows $976 in general payments to Dr. Zamzow from 7 companies from 2016 to 2024. The largest total came from Stryker Corporation.
How long has Dr. Joel A. Zamzow been practicing?
Dr. Zamzow graduated from medical school in 1988, 38 years ago.
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