Dr. William C. Chiu, MD
- Medicare services, 2024
- 315
- Medicare patients, 2024
- 150
- Hospital affiliations
- 1
- Industry payments
- $399
- Medical group
- 1
- Practice address
- 22 South Greene Street, Baltimore, MD 21201
- Practice phone
- Call (410) 328-8667
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Chiu's professional email, personal email and mobile number
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Dr. William C. Chiu is a trauma surgery physician in Baltimore, Maryland
Dr. Chiu practices at University of Maryland Medical Center in Baltimore, Maryland, part of University of Maryland Medical System.
Dr. Chiu's NPI, 1518939925, was assigned on February 2, 2006. Dr. Chiu graduated from University of Maryland School of Medicine in 1988. Dr. Chiu holds Maryland license D46147.
- NPI
- 1518939925NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9537129416
- NPI enumeration date
- February 2, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (410) 328-8667
- 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; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. William C. Chiu practices at University of Maryland Medical Center in Baltimore, Maryland
Dr. Chiu's primary practice is University of Maryland Medical Center, at 22 South Greene Street, Baltimore, MD 21201 in Baltimore City. The practice phone is (410) 328-8667.
- University of Maryland Medical Center22 South Greene Street, Baltimore, MD 21201 · Baltimore CityPhone(410) 328-8667
Source: Dmand AI Affiliation Data
Dr. William C. Chiu is affiliated with 1 site of care and 1 medical group
Dr. Chiu's primary practice is University of Maryland Medical Center in Baltimore, Maryland, part of University of Maryland Medical System. The medical group on file is R Adams Cowley Shock Trauma Center at the University of Maryland.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. William C. Chiu's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chiu practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| University of Maryland Medical Center | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. William C. Chiu is one of 30 trauma surgery physicians in Maryland
Trauma surgery is Dr. Chiu's primary specialty in the NPI Registry, under taxonomy code 2086S0127X. Dr. Chiu is licensed in Maryland.
Specialties and state licenses
- Trauma surgery, MarylandPrimary
Trauma surgery physicians near Dr. Chiu
Counts of trauma surgery physicians 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 C. Chiu billed Medicare for 315 services in 2024
CMS data shows 315 Medicare services from Dr. Chiu across 2 procedure codes in 2024, for 150 Medicare patients. Medicare paid $23,143 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Chiu's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3032024: 3154%
- Surgery
- 2023: 162024: 0100%
Dr. Chiu compared with the Maryland median for trauma surgery physicians, 2024
- Dr. Chiu
- Maryland median
- Medicare services
- 315vs 16294% above
- Medicare patients
- 150vs 9460% above
Medians across 28 trauma surgery physicians in Maryland with Dmand AI profiles that report each measure.
Dr. Chiu'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.
Need commercial claims for Dr. Chiu?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Chiu and other trauma surgery physicians in Maryland.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. William C. Chiu treated 150 Medicare patients in 2024, average age 76
CMS counts 150 Medicare patients who saw Dr. Chiu in 2024. The largest group is 65 to 74, with 50 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 22% are also on Medicaid. Their average risk score is 2.04, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Chiu's median patient age at 61, with 39% women.
Dr. Chiu's Medicare patients by age, 2024
Dr. Chiu's Medicare patients by sex, 2024
- Women7953%
- Men7147%
Chronic conditions among Dr. Chiu's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis60%
- Mood disorders53%
- Depression47%
- Diabetes47%
- Chronic kidney disease44%
- Anxiety43%
Share of Medicare patients with each condition. A patient can have several.
Dr. Chiu's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 61
Patient panel by sex, all payers
- Women39%
- Men60%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. William C. Chiu ranks in the 68th percentile for removal of tissue in Medicare
Dr. Chiu accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 19 procedures of removal of tissue by Dr. Chiu, more than 68% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Chiu ranks in Medicare procedure volume
- Removal of tissue
- 68th percentile19 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Upper gastrointestinal (GI) endoscopy for acid reflux: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. William C. Chiu received $399 in industry payments from 2020 to 2025
CMS Open Payments shows 11 general payments to Dr. Chiu from 7 drug and device companies from 2020 to 2025. Food and beverage make up the largest share, 100% of the total. Baxter Healthcare paid the most, $191.
General payments to Dr. Chiu by program year, 2020 to 2025
Companies that paid Dr. Chiu the most, 2020 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. William C. Chiu graduated from University of Maryland School of Medicine
Dr. Chiu graduated from University of Maryland School of Medicine in 1988.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. William C. Chiu'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)Doctors and Clinicians Utilization Data (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 C. Chiu
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 C. Chiu's NPI number?
Dr. William C. Chiu's NPI number is 1518939925. It was assigned on February 2, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. William C. Chiu?
Dr. William C. Chiu is a trauma surgery physician in Baltimore, Maryland. The primary specialty in the NPI Registry is Trauma Surgery Physician (taxonomy code 2086S0127X).
Where does Dr. William C. Chiu practice?
Dr. Chiu practices at 22 South Greene Street, Baltimore, MD 21201. Dr. Chiu's primary practice is University of Maryland Medical Center in Baltimore, Maryland, part of University of Maryland Medical System.
What is Dr. William C. Chiu's office phone number?
The practice phone on file for Dr. Chiu is (410) 328-8667.
What is Dr. William C. Chiu's medical license number?
Dr. Chiu holds Maryland license D46147.
Which hospitals is Dr. William C. Chiu affiliated with?
Dr. Chiu practices at University of Maryland Medical Center in Baltimore, Maryland.
What medical group is Dr. William C. Chiu part of?
Dr. Chiu is linked to R Adams Cowley Shock Trauma Center at the University of Maryland.
Does Dr. William C. Chiu accept Medicare?
Yes. CMS data shows Dr. Chiu billed Medicare for 315 services in 2024, and Dr. Chiu accepts Medicare assignment.
How many Medicare patients does Dr. William C. Chiu see?
CMS counts 150 Medicare patients who saw Dr. Chiu in 2024, with an average age of 76.
What services does Dr. William C. Chiu bill to Medicare?
In 2024, Dr. Chiu's most billed Medicare services were hospital inpatient care (99232) and hospital inpatient care (99233).
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Where did Dr. William C. Chiu go to medical school?
Dr. Chiu graduated from University of Maryland School of Medicine in 1988.
Has Dr. William C. Chiu received payments from drug or device companies?
CMS Open Payments shows $399 in general payments to Dr. Chiu from 7 companies from 2020 to 2025. The largest total came from Baxter Healthcare.
How long has Dr. William C. Chiu been practicing?
Dr. Chiu graduated from medical school in 1988, 38 years ago.
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