Dr. Dean W. Ziegler, MD

  • Milwaukee, WI
  • Orthopedic surgeon
NPI1316939259
Medicare services, 2024
1,311
Medicare patients, 2024
229
Part D claims, 2024
309
MIPS score, 2024
75
Industry payments
$36,801
Practice address
2500 N Mayfair Rd, Milwaukee, WI 53226
Practice phone
Call (414) 961-6800
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Orthopaedic Hospital of Wisconsin

Milwaukee, Wisconsin

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Dr. Dean W. Ziegler is an orthopedic surgeon in Milwaukee, Wisconsin

Dr. Ziegler practices at Orthopaedic Hospital of Wisconsin in Milwaukee, Wisconsin.

Dr. Ziegler's NPI, 1316939259, was assigned on August 17, 2005. Dr. Ziegler graduated from University of Wisconsin School of Medicine in 1989. Dr. Ziegler holds Wisconsin license 36588.

NPI and contact details
NPI enumeration date
August 17, 2005
NPI status
Active
Practice phone
(414) 961-6800
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
63
Medical school graduation
1989

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data

Dr. Dean W. Ziegler practices at Orthopaedic Hospital of Wisconsin in Milwaukee, Wisconsin

Dr. Ziegler's primary practice is Orthopaedic Hospital of Wisconsin, at 2500 N Mayfair Rd, Milwaukee, WI 53226 in Milwaukee County. The practice phone is (414) 961-6800.

  • Orthopaedic Hospital of Wisconsin
    2500 N Mayfair Rd, Milwaukee, WI 53226 · Milwaukee CountyPhone(414) 961-6800

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. Dean W. Ziegler is affiliated with 3 sites of care and 2 medical groups

Dr. Ziegler's primary practice is Orthopaedic Hospital of Wisconsin in Milwaukee, Wisconsin. The medical group on file is Wisconsin Bone and Joint, S. C. Dmand AI also links Dr. Ziegler to 2 more group practices and clinics and 1 medical group, each named with a free account.

See all 5 affiliations for Dr. Ziegler

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Dr. Dean W. Ziegler's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ziegler practices, 2 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Orthopaedic Hospital of WisconsinAvailable with a free account
+2 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Dean W. Ziegler is one of 526 orthopedic surgeons in Wisconsin

Orthopaedic surgery is Dr. Ziegler's primary specialty in the NPI Registry, under taxonomy code 207X00000X. Dr. Ziegler is licensed in Wisconsin.

Specialties and state licenses

  • Orthopaedic surgery, WisconsinPrimaryLicense 36588 · taxonomy 207X00000X

Orthopedic surgeons near Dr. Ziegler

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. Dean W. Ziegler billed Medicare for 1,311 services in 2024

CMS data shows 1,311 Medicare services from Dr. Ziegler across 8 procedure codes in 2024, for 229 Medicare patients. Medicare paid $62,829 for them.

Medicare services, 20241,311
Medicare patients229
Paid by Medicare$62,829
Procedure codes8

Dr. Ziegler's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Drugs given in the office
2023: 6522024: 6774%
Office and hospital visits
2023: 3002024: 2758%
Surgery
2023: 1542024: 18017%
Imaging
2023: 1472024: 17922%

Where Dr. Ziegler's Medicare services took place, 2024

  • In an office1,27897%
  • In a facility333%

Dr. Ziegler compared with the Wisconsin median for orthopedic surgeons, 2024

  • Dr. Ziegler
  • Wisconsin median
Medicare services
1,311vs 4393.0 times
Medicare patients
229vs 17233% above
Part D claims
269vs 703.8 times

Medians across 543 orthopedic surgeons in Wisconsin with Dmand AI profiles that report each measure.

Dr. Ziegler'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.

See all procedures by Dr. Ziegler

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Dean W. Ziegler treated 229 Medicare patients in 2024, average age 74

CMS counts 229 Medicare patients who saw Dr. Ziegler in 2024. The largest group is 65 to 74, with 114 patients. 75% of them have arthritis, and 75% have high cholesterol. 5% 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. Ziegler's median patient age at 74, with 55% women.

Medicare patients, 2024229
Average age74
Average risk score1.10
Also on Medicaid5%

Dr. Ziegler's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. Ziegler's Medicare patients by sex, 2024

  • Women13358%
  • Men9642%

Chronic conditions among Dr. Ziegler's Medicare patients, 2024

  1. Arthritis75%
  2. High cholesterol75%
  3. High blood pressure68%
  4. Anxiety30%
  5. Ischemic heart disease30%
  6. Mood disorders29%
  7. Depression28%
  8. Diabetes25%

Share of Medicare patients with each condition. A patient can have several.

Dr. Ziegler'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

  • Women55%
  • Men45%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Dean W. Ziegler wrote 309 Medicare Part D claims in 2024

In 2024, Dr. Ziegler wrote 309 Medicare Part D claims for 142 patients. 100% of them were for generic drugs. CMS names the drug for 269 of them, across 4 drugs with 11 or more claims each, at $943 in total drug cost. In 2023, CMS named 217 claims across 4 drugs.

Part D claims, 2024309
Drugs named by CMS4
Total drug cost$943
Part D patients142

Dr. Ziegler'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. Ziegler's Part D claims, 2024

  • Opioids63%194 of 309 claims
  • Antibiotics24%74 of 309 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: 2172024: 26924%

Drugs named by CMS: 4 in 2024, 4 in 2023.

See all prescribing by Dr. Ziegler

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

Dr. Dean W. Ziegler scored 75 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 75 out of 100 for Dr. Ziegler for performance year 2024, reported as part of a group.

MIPS final score, 2024
75 of 100

Source: Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026

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Dr. Dean W. Ziegler received $36,801 in industry payments from 2016 to 2025

CMS Open Payments shows 69 general payments to Dr. Ziegler from 14 drug and device companies from 2016 to 2025. Consulting fees make up the largest share, 52% of the total. Stryker Corporation paid the most, $13,586.

General payments to Dr. Ziegler by program year, 2016 to 2025

General payments to Dr. Ziegler by kind, 2016 to 2025

$36.8Kin total
  • Consulting fees$19,13252%
  • Speaker and faculty fees$8,40023%
  • Food and beverage$3,51210%
  • Education$3,2609%
  • Travel and lodging$2,4977%

Companies that paid Dr. Ziegler the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Ziegler

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Dean W. Ziegler graduated from University of Wisconsin School of Medicine

Dr. Ziegler graduated from University of Wisconsin School of Medicine in 1989.

  1. Medical schoolUniversity of Wisconsin School of Medicine

Source: Dmand AI Professional Profile Data

Sources for Dr. Dean W. Ziegler's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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 percentilesClinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Dean W. Ziegler

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. Dean W. Ziegler's NPI number?

Dr. Dean W. Ziegler's NPI number is 1316939259. It was assigned on August 17, 2005, and it is active in the NPI Registry.

What kind of doctor is Dr. Dean W. Ziegler?

Dr. Dean W. Ziegler is an orthopedic surgeon in Milwaukee, Wisconsin. The primary specialty in the NPI Registry is Orthopaedic Surgery Physician (taxonomy code 207X00000X).

Where does Dr. Dean W. Ziegler practice?

Dr. Ziegler practices at 2500 N Mayfair Rd, Milwaukee, WI 53226. Dr. Ziegler's primary practice is Orthopaedic Hospital of Wisconsin in Milwaukee, Wisconsin. Dmand AI also links Dr. Ziegler to 2 group practices and clinics and 1 medical group.

What is Dr. Dean W. Ziegler's office phone number?

The practice phone on file for Dr. Ziegler is (414) 961-6800.

What is Dr. Dean W. Ziegler's medical license number?

Dr. Ziegler holds Wisconsin license 36588.

What medical group is Dr. Dean W. Ziegler part of?

Dr. Ziegler is linked to Wisconsin Bone and Joint, S. C. Dmand AI links Dr. Ziegler to 1 more medical group.

Does Dr. Dean W. Ziegler accept Medicare?

Yes. CMS data shows Dr. Ziegler billed Medicare for 1,311 services in 2024.

What is Dr. Dean W. Ziegler's MIPS score?

Dr. Ziegler's MIPS final score for performance year 2024 is 75 out of 100, reported as part of a group.

How many Medicare patients does Dr. Dean W. Ziegler see?

CMS counts 229 Medicare patients who saw Dr. Ziegler in 2024, with an average age of 74.

What services does Dr. Dean W. Ziegler bill to Medicare?

In 2024, Dr. Ziegler's most billed Medicare services were injected or infused drug (J3301), diagnostic imaging (73030) and surgery: bones and joints (20611).

Show 4 more questionsShow fewer questions

Where did Dr. Dean W. Ziegler go to medical school?

Dr. Ziegler graduated from University of Wisconsin School of Medicine in 1989.

What drugs does Dr. Dean W. Ziegler prescribe most?

In 2024 Medicare Part D data, Dr. Ziegler's most prescribed drugs by claims were Tramadol HCl, Amoxicillin and Oxycodone HCl.

Has Dr. Dean W. Ziegler received payments from drug or device companies?

CMS Open Payments shows $36,801 in general payments to Dr. Ziegler from 14 companies from 2016 to 2025. The largest total came from Stryker Corporation.

How long has Dr. Dean W. Ziegler been practicing?

Dr. Ziegler graduated from medical school in 1989, 37 years ago.

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