Dr. Maurice Wendell Chung, MD

  • Milwaukee, WI
  • Gastroenterologist
NPI1124042015PAC ID4385636810
Medicare services, 2024
183
Medicare patients, 2024
194
Part D claims, 2024
1,842
Publications
1
Hospital affiliations
1
Practice address
2323 N Lake Dr, Milwaukee, WI 53211
Practice phone
Call (414) 585-1374
Professional email
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Personal email
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Mobile number
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Social profiles

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Dr. Maurice Wendell Chung is a gastroenterologist in Milwaukee, Wisconsin

Dr. Chung practices at Ascension Columbia St. Mary's Hospital - Milwaukee Campus in Milwaukee, Wisconsin, part of Ascension Health Alliance.

Dr. Chung's NPI, 1124042015, was assigned on July 26, 2006. Dr. Chung graduated from Medical College Of Wisconsin in 1984. Dr. Chung's Wisconsin license number on file is 26944.

NPI and contact details
Medicare PAC ID
4385636810
NPI enumeration date
July 26, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(414) 585-1374
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
68
Medical school graduation
1984

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Maurice Wendell Chung practices at Ascension Columbia St. Mary's Hospital - Milwaukee Campus in Milwaukee, Wisconsin

Dr. Chung's primary practice is Ascension Columbia St. Mary's Hospital - Milwaukee Campus, at 2323 N Lake Dr, Milwaukee, WI 53211 in Milwaukee County. The practice phone is (414) 585-1374.

Source: Dmand AI Affiliation Data

Dr. Maurice Wendell Chung is affiliated with 7 sites of care and 3 medical groups

Dr. Chung's primary practice is Ascension Columbia St. Mary's Hospital - Milwaukee Campus in Milwaukee, Wisconsin, part of Ascension Health Alliance. The medical group on file is Ascension Medical Group. Dmand AI also links Dr. Chung to 3 more group practices and clinics, 2 medical groups, 1 behavioral health center, 1 clinical lab and 1 physician office, each named with a free account.

See all 10 affiliations for Dr. Chung

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Maurice Wendell Chung's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chung practices, 7 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Ascension Columbia St. Mary's Hospital - Milwaukee CampusAvailable with a free account
+6 more sites and 2 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

See the EHR and IT leaders at every hospital where Dr. Chung practices

Dmand AI maps EHR vendors, IT decision makers and buying committees across Ascension Health Alliance and 6.2K+ hospitals, with verified contacts in the same login.

Dr. Maurice Wendell Chung is one of 277 gastroenterologists in Wisconsin

Gastroenterology is Dr. Chung's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Chung is board certified in gastroenterology by the American Board of Internal Medicine. Dr. Chung has a license on file in Wisconsin.

Specialties and state licenses

  • Gastroenterology, WisconsinPrimaryLicense 26944 · 1985 to 2025 · taxonomy 207RG0100X

Clinical focus

Dmand AI lists acid reflux, chronic inflammatory bowel disease (IBD), colonoscopy, gastrointestinal bleeding, intestinal diverticulosis, irritable bowel syndrome (IBS) and upper GI endoscopy among the conditions Dr. Chung treats.

Gastroenterologists near Dr. Chung

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. Maurice Wendell Chung billed Medicare for 183 services in 2024

CMS data shows 183 Medicare services from Dr. Chung across 5 procedure codes in 2024, for 194 Medicare patients. Medicare paid $18,679 for them.

Medicare services, 2024183
Medicare patients194
Paid by Medicare$18,679
Procedure codes5

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

  • 2023
  • 2024
Office and hospital visits
2023: 1632024: 11033%
Surgery
2023: 992024: 7326%
Other services
2023: 252024: 0100%

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

  • In an office11060%
  • In a facility7340%

Dr. Chung compared with the Wisconsin median for gastroenterologists, 2024

  • Dr. Chung
  • Wisconsin median
Medicare services
183vs 32944% below
Medicare patients
194vs 25825% below
Part D claims
1,654vs 4293.9 times

Medians across 278 gastroenterologists in Wisconsin with Dmand AI profiles that report each measure.

Dr. Chung'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. Chung

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

Dr. Maurice Wendell Chung treated 194 Medicare patients in 2024, average age 72

CMS counts 194 Medicare patients who saw Dr. Chung in 2024. The largest group is 65 to 74, with 97 patients. 73% of them have high cholesterol, and 71% have high blood pressure. 25% are also on Medicaid. Their average risk score is 1.37, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Chung's median patient age at 66, with 62% women.

Medicare patients, 2024194
Average age72
Average risk score1.37
Also on Medicaid25%

Dr. Chung's Medicare patients by age, 2024

Dr. Chung's Medicare patients by sex, 2024

  • Women11660%
  • Men7840%

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

  1. High cholesterol73%
  2. High blood pressure71%
  3. Arthritis47%
  4. Mood disorders31%
  5. Diabetes30%
  6. Depression28%
  7. Ischemic heart disease28%
  8. Anxiety27%

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

Dr. Chung's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 66

Patient panel by sex, all payers

  • Women62%
  • Men38%

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

Dr. Maurice Wendell Chung wrote 1,842 Medicare Part D claims in 2024

In 2024, Dr. Chung wrote 1,842 Medicare Part D claims for 637 patients. 76% of them were for generic drugs. CMS names the drug for 1,654 of them, across 19 drugs with 11 or more claims each, at $137,325 in total drug cost. In 2023, CMS named 1,676 claims across 21 drugs.

Part D claims, 20241,842
Drugs named by CMS19
Total drug cost$137,325
Part D patients637

Dr. Chung's Part D claims by kind of drug, 2024

  • Generic1,399 claims76%
  • Brand-name443 claims24%

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

  • Antibiotics1%12 of 1,842 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: 1,6762024: 1,6541%

Drugs named by CMS: 19 in 2024, 21 in 2023.

See all prescribing by Dr. Chung

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. Maurice Wendell Chung ranks in the 64th percentile for colonoscopy in Medicare

Dr. Chung accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 50 procedures of colonoscopy by Dr. Chung, more than 64% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes

Where Dr. Chung ranks in Medicare procedure volume

Colonoscopy
64th percentile50 procedures
Upper gastrointestinal (GI) endoscopy for acid reflux
59th percentile37 procedures

CMS ranks each clinician against every clinician it reports for the same procedure category.

Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)

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Dr. Maurice Wendell Chung has 1 publication on record

Dmand AI links 1 paper to Dr. Chung.

Papers1

Recent publications by Dr. Chung

See all 1 publications and co-authors

See who Dr. Chung researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Chung works with, so you can find a warm path to the right gastroenterologists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Maurice Wendell Chung received $1,432 in industry payments from 2016 to 2025

CMS Open Payments shows 53 general payments to Dr. Chung from 7 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 62% of the total. Boston Scientific Corporation paid the most, $649.

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

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

$1.4Kin total
  • Food and beverage$89362%
  • Travel and lodging$53938%

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

Share is of all general payments to this clinician.

See all payments to Dr. Chung

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

Dr. Maurice Wendell Chung has 2 awards and honors on record

Dmand AI lists 2 awards for Dr. Chung, most recently Checkbook Top Doc in 2012.

Awards and honors for Dr. Chung

  1. 2012
    • Checkbook Top Doc
  2. Undated
    • CMS Stage 1 2012

Source: Dmand AI Professional Profile Data

Dr. Maurice Wendell Chung graduated from Medical College Of Wisconsin

Dr. Chung graduated from Medical College Of Wisconsin in 1984.

  1. Medical schoolMedical College Of Wisconsin
  2. Board certified in gastroenterologyAmerican Board of Internal Medicine
  3. Board certified in internal medicineAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Dr. Maurice Wendell Chung accepts plans from 12 insurance carriers

Dr. Chung is in network with 12 carriers, including Aetna, Elevance and United Healthcare. Medicare plans come from the most carriers, 9. Check the plan with the practice before a visit.

  • Aetna
  • Elevance
  • United Healthcare
  • Blue Cross Blue Shield of Michigan
  • Blue Cross Blue Shield of Massachusetts
  • HCSC
  • Molina
  • Regence Health Plans
  • +4 more carriersWith a free account

Plan types Dr. Chung accepts, by number of carriers

  1. Medicare9
  2. PPO8
  3. HMO5
  4. POS4
  5. Medicaid3
  6. EPO2

Source: Dmand AI Insurance Network Data

Sources for Dr. Maurice Wendell Chung'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 phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy 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 percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Awards and committee rolesDmand AI Professional Profile Data
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network 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. Maurice Wendell Chung

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. Maurice Wendell Chung's NPI number?

Dr. Maurice Wendell Chung's NPI number is 1124042015. It was assigned on July 26, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Maurice Wendell Chung?

Dr. Maurice Wendell Chung is a gastroenterologist in Milwaukee, Wisconsin. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).

Where does Dr. Maurice Wendell Chung practice?

Dr. Chung practices at 2323 N Lake Dr, Milwaukee, WI 53211. Dr. Chung's primary practice is Ascension Columbia St. Mary's Hospital - Milwaukee Campus in Milwaukee, Wisconsin, part of Ascension Health Alliance. Dmand AI also links Dr. Chung to 3 group practices and clinics, 2 medical groups, 1 behavioral health center, 1 clinical lab and 1 physician office.

What is Dr. Maurice Wendell Chung's office phone number?

The practice phone on file for Dr. Chung is (414) 585-1374.

What is Dr. Maurice Wendell Chung's medical license number?

Dr. Chung's Wisconsin license number on file is 26944.

Which hospitals is Dr. Maurice Wendell Chung affiliated with?

Dr. Chung practices at Ascension Columbia St. Mary's Hospital - Milwaukee Campus in Milwaukee, Wisconsin.

What medical group is Dr. Maurice Wendell Chung part of?

Dr. Chung is linked to Ascension Medical Group. Dmand AI links Dr. Chung to 2 more medical groups.

Does Dr. Maurice Wendell Chung accept Medicare?

Yes. CMS data shows Dr. Chung billed Medicare for 183 services in 2024, and Dr. Chung accepts Medicare assignment.

How many Medicare patients does Dr. Maurice Wendell Chung see?

CMS counts 194 Medicare patients who saw Dr. Chung in 2024, with an average age of 72.

Is Dr. Maurice Wendell Chung board certified?

Yes. Dr. Chung is board certified in gastroenterology by the American Board of Internal Medicine.

Show 7 more questionsShow fewer questions

What services does Dr. Maurice Wendell Chung bill to Medicare?

In 2024, Dr. Chung's most billed Medicare services were office visit, established patient (99214), surgery: digestive system (45385) and hospital inpatient care (99232).

Where did Dr. Maurice Wendell Chung go to medical school?

Dr. Chung graduated from Medical College Of Wisconsin in 1984.

What drugs does Dr. Maurice Wendell Chung prescribe most?

In 2024 Medicare Part D data, Dr. Chung's most prescribed drugs by claims were Peg 3350-Electrolyte, Pantoprazole Sodium and Esomeprazole Magnesium.

Has Dr. Maurice Wendell Chung received payments from drug or device companies?

CMS Open Payments shows $1,432 in general payments to Dr. Chung from 7 companies from 2016 to 2025. The largest total came from Boston Scientific Corporation.

How long has Dr. Maurice Wendell Chung been practicing?

Dr. Chung graduated from medical school in 1984, 42 years ago.

Does Dr. Maurice Wendell Chung do research?

Dmand AI links 1 publication to Dr. Chung.

What insurance does Dr. Maurice Wendell Chung accept?

Dr. Chung is in network with 12 carriers, including Aetna, Elevance and United Healthcare. Medicare plans come from the most carriers, 9. Check the plan with the practice before a visit.

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