Dr. Hwan Young Yoo, MD
- Medicare services, 2024
- 747
- Medicare patients, 2024
- 437
- Part D claims, 2024
- 818
- Hospital affiliations
- 6
- Industry payments
- $12,495
- Practice address
- 602 Michigan Ave, Holland, MI 49423
- Practice phone
- Call (616) 392-5141
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Yoo's professional email, personal email and mobile number
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Dr. Hwan Young Yoo is a gastroenterologist in Holland, Michigan
Dr. Yoo practices at Holland Hospital in Holland, Michigan, part of Holland Hospital.
Dr. Yoo's NPI, 1730173436, was assigned on September 8, 2005. Dr. Yoo holds Maryland license D53514.
- NPI
- 1730173436NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3476542978
- NPI enumeration date
- September 8, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (616) 392-5141
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 67
- Medical school graduation
- 1985
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Hwan Young Yoo practices at Holland Hospital in Holland, Michigan
Dr. Yoo's primary practice is Holland Hospital, at 602 Michigan Ave, Holland, MI 49423 in Ottawa County. The practice phone is (616) 392-5141.
- Holland Hospital602 Michigan Ave, Holland, MI 49423 · Ottawa CountyPhone(616) 392-5141
Source: Dmand AI Affiliation Data
Dr. Hwan Young Yoo is affiliated with 10 sites of care and 12 medical groups
Dr. Yoo's primary practice is Holland Hospital in Holland, Michigan, part of Holland Hospital. Dr. Yoo is also affiliated with UPMC Harrisburg. The medical group on file is Holland Hospital Behavioral Health Services - Outpatient. Dmand AI also links Dr. Yoo to 4 more hospitals, 11 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. Hwan Young Yoo's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Yoo practices, 10 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Holland Hospital | Available with a free account |
| +9 more sites and 11 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 Holland Hospital and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Hwan Young Yoo is one of 487 gastroenterologists in Michigan
Gastroenterology is Dr. Yoo's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dmand AI has Dr. Yoo's licenses on file in 2 states: Maryland and Indiana.
Specialties and state licenses
- Gastroenterology, MarylandPrimary
- Indiana license
Gastroenterologists near Dr. Yoo
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. Hwan Young Yoo billed Medicare for 747 services in 2024
CMS data shows 747 Medicare services from Dr. Yoo across 12 procedure codes in 2024, for 437 Medicare patients. Medicare paid $74,504 for them.
Dr. Yoo's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 5162024: 4807%
- Surgery
- 2023: 2452024: 21313%
- Other services
- 2023: 192024: 3689%
- Tests and treatments
- 2023: 02024: 18
Where Dr. Yoo's Medicare services took place, 2024
- In an office26235%
- In a facility48565%
Dr. Yoo compared with the Michigan median for gastroenterologists, 2024
- Dr. Yoo
- Michigan median
- Medicare services
- 747vs 3242.3 times
- Medicare patients
- 437vs 23090% above
- Part D claims
- 669vs 42458% above
Medians across 487 gastroenterologists in Michigan with Dmand AI profiles that report each measure.
Dr. Yoo'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. Yoo and other gastroenterologists in Michigan.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Hwan Young Yoo treated 437 Medicare patients in 2024, average age 71
CMS counts 437 Medicare patients who saw Dr. Yoo in 2024. The largest group is 65 to 74, with 231 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 24% are also on Medicaid. Their average risk score is 1.28, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Yoo's median patient age at 70, with 54% women.
Dr. Yoo's Medicare patients by age, 2024
Dr. Yoo's Medicare patients by sex, 2024
- Women24556%
- Men19244%
Chronic conditions among Dr. Yoo's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis44%
- Diabetes42%
- Anxiety26%
- Ischemic heart disease26%
- Mood disorders26%
- Depression24%
Share of Medicare patients with each condition. A patient can have several.
Dr. Yoo's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
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. Hwan Young Yoo wrote 818 Medicare Part D claims in 2024
In 2024, Dr. Yoo wrote 818 Medicare Part D claims for 310 patients. 78% of them were for generic drugs. CMS names the drug for 669 of them, across 22 drugs with 11 or more claims each, at $202,201 in total drug cost. In 2023, CMS named 517 claims across 14 drugs.
Dr. Yoo's Part D claims by kind of drug, 2024
- Generic636 claims78%
- Brand-name182 claims22%
Dr. Yoo'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. Yoo's Part D claims, 2024
- Antibiotics5%37 of 818 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: 5172024: 66929%
Drugs named by CMS: 22 in 2024, 14 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
Dr. Hwan Young Yoo ranks in the 82nd percentile for colonoscopy in Medicare
Dr. Yoo accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 109 procedures of colonoscopy by Dr. Yoo, more than 82% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Yoo ranks in Medicare procedure volume
- Colonoscopy
- 82nd percentile109 procedures
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 75th percentile93 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. Hwan Young Yoo received $12,495 in industry payments from 2016 to 2025
CMS Open Payments shows 406 general payments to Dr. Yoo from 49 drug and device companies from 2016 to 2025. Consulting fees make up the largest share, 48% of the total. Gilead Sciences, Inc. paid the most, $6,921. It also lists 1 research payment totaling $200 in 2023.
General payments to Dr. Yoo by program year, 2016 to 2025
General payments to Dr. Yoo by kind, 2016 to 2025
- Consulting fees$6,06048%
- Food and beverage$6,04648%
- Travel and lodging$3333%
- Education$560%
Companies that paid Dr. Yoo the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Hwan Young Yoo'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) |
| 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) |
| 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) |
| 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. Hwan Young Yoo
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. Hwan Young Yoo's NPI number?
Dr. Hwan Young Yoo's NPI number is 1730173436. It was assigned on September 8, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Hwan Young Yoo?
Dr. Hwan Young Yoo is a gastroenterologist in Holland, Michigan. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Hwan Young Yoo practice?
Dr. Yoo practices at 602 Michigan Ave, Holland, MI 49423. Dr. Yoo's primary practice is Holland Hospital in Holland, Michigan, part of Holland Hospital. Dmand AI also links Dr. Yoo to 4 hospitals, 11 medical groups and 4 group practices and clinics.
What is Dr. Hwan Young Yoo's office phone number?
The practice phone on file for Dr. Yoo is (616) 392-5141.
What is Dr. Hwan Young Yoo's medical license number?
Dr. Yoo holds Maryland license D53514, one of the licenses on file in 2 states.
Which states has Dr. Hwan Young Yoo been licensed in?
Dmand AI has state licenses on file for Dr. Yoo in Maryland and Indiana.
Which hospitals is Dr. Hwan Young Yoo affiliated with?
Dr. Yoo practices at Holland Hospital in Holland, Michigan. Dr. Yoo is also affiliated with UPMC Harrisburg. Dmand AI links Dr. Yoo to 4 more hospitals.
What medical group is Dr. Hwan Young Yoo part of?
Dr. Yoo is linked to Holland Hospital Behavioral Health Services - Outpatient. Dmand AI links Dr. Yoo to 11 more medical groups.
Does Dr. Hwan Young Yoo accept Medicare?
Yes. CMS data shows Dr. Yoo billed Medicare for 747 services in 2024, and Dr. Yoo accepts Medicare assignment.
How many Medicare patients does Dr. Hwan Young Yoo see?
CMS counts 437 Medicare patients who saw Dr. Yoo in 2024, with an average age of 71.
Show 4 more questionsShow fewer questions
What services does Dr. Hwan Young Yoo bill to Medicare?
In 2024, Dr. Yoo's most billed Medicare services were office visit, established patient (99214), office visit, new patient (99204) and surgery: digestive system (43239).
What drugs does Dr. Hwan Young Yoo prescribe most?
In 2024 Medicare Part D data, Dr. Yoo's most prescribed drugs by claims were Famotidine, Sod Sulf-Potass Sulf-Mag Sulf and Omeprazole.
Has Dr. Hwan Young Yoo received payments from drug or device companies?
CMS Open Payments shows $12,495 in general payments to Dr. Yoo from 49 companies from 2016 to 2025. The largest total came from Gilead Sciences, Inc.
How long has Dr. Hwan Young Yoo been practicing?
Dr. Yoo graduated from medical school in 1985, 41 years ago.
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