Dr. Winnie Yiyun Zou, MD
- Part D claims, 2024
- 40
- Hospital affiliations
- 1
- Industry payments
- $256
- Medical group
- 1
- State license
- 1
- Practice address
- 1500 E Medical Center Dr, Ann Arbor, MI 48109
- Practice phone
- Call (734) 936-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
University Hospital
School-Based Health Center · Ann Arbor, Michigan
Find Dr. Zou's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Winnie Yiyun Zou is a gastroenterologist in Ann Arbor, Michigan
Dr. Zou practices at University Hospital in Ann Arbor, Michigan.
Dr. Zou's NPI, 1427619337, was assigned on June 23, 2019. Dr. Zou graduated from Baylor College of Medicine in 2019. Dr. Zou holds Michigan license 4301513970.
- NPI
- 1427619337NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7618201195
- NPI enumeration date
- June 23, 2019
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (734) 936-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 33
- Medical school graduation
- 2019
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Winnie Yiyun Zou practices at University Hospital in Ann Arbor, Michigan
Dr. Zou's primary practice is University Hospital, at 1500 E Medical Center Dr, Ann Arbor, MI 48109. The practice phone is (734) 936-4000.
- University Hospital1500 E Medical Center Dr, Ann Arbor, MI 48109Phone(734) 936-4000
Source: Dmand AI Affiliation Data
Dr. Winnie Yiyun Zou is affiliated with 2 sites of care and 1 medical group
Dr. Zou's primary practice is University Hospital in Ann Arbor, Michigan. Dr. Zou is also affiliated with University Hospital. The medical group on file is University of Michigan Health. Dr. Zou's employer is on file too: a school & student health.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Winnie Yiyun Zou's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Zou practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| University Hospital | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Winnie Yiyun Zou is one of 487 gastroenterologists in Michigan
Gastroenterology is Dr. Zou's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Zou is licensed in Michigan.
Specialties and state licenses
- Gastroenterology, MichiganPrimary
Gastroenterologists near Dr. Zou
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. Winnie Yiyun Zou's patients have a median age of 55
Across all payers, Dmand AI patient panel data puts Dr. Zou's median patient age at 55, with 57% women.
Dr. Zou's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 55
Patient panel by sex, all payers
- Women57%
- Men43%
Source: Dmand AI Patient Panel Data
Dr. Winnie Yiyun Zou wrote 40 Medicare Part D claims in 2024
In 2024, Dr. Zou wrote 40 Medicare Part D claims for 17 patients. 68% of them were for generic drugs.
Dr. Zou's Part D claims by kind of drug, 2024
- Generic27 claims68%
- Brand-name13 claims33%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Winnie Yiyun Zou ranks in the 51st percentile for upper gastrointestinal (gi) endoscopy for acid reflux in Medicare
Dr. Zou accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Zou as offering telehealth. CMS counts 21 procedures of upper gastrointestinal (gi) endoscopy for acid reflux by Dr. Zou, more than 51% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Where Dr. Zou ranks in Medicare procedure volume
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 51st percentile21 procedures
- Colonoscopy
- 48th percentile21 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. Winnie Yiyun Zou received $256 in industry payments in 2025
CMS Open Payments shows 4 general payments to Dr. Zou from 3 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Celltrion USA Inc. paid the most, $118.
Companies that paid Dr. Zou the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Winnie Yiyun Zou graduated from Baylor College of Medicine
Dr. Zou graduated from Baylor College of Medicine in 2019.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Winnie Yiyun Zou'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 patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | 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) |
| 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. Winnie Yiyun Zou
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. Winnie Yiyun Zou's NPI number?
Dr. Winnie Yiyun Zou's NPI number is 1427619337. It was assigned on June 23, 2019, and it is active in the NPI Registry.
What kind of doctor is Dr. Winnie Yiyun Zou?
Dr. Winnie Yiyun Zou is a gastroenterologist in Ann Arbor, Michigan. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Winnie Yiyun Zou practice?
Dr. Zou practices at 1500 E Medical Center Dr, Ann Arbor, MI 48109. Dr. Zou's primary practice is University Hospital in Ann Arbor, Michigan.
What is Dr. Winnie Yiyun Zou's office phone number?
The practice phone on file for Dr. Zou is (734) 936-4000.
What is Dr. Winnie Yiyun Zou's medical license number?
Dr. Zou holds Michigan license 4301513970.
Which hospitals is Dr. Winnie Yiyun Zou affiliated with?
Dr. Zou is affiliated with University Hospital.
What medical group is Dr. Winnie Yiyun Zou part of?
Dr. Zou is linked to University of Michigan Health.
Does Dr. Winnie Yiyun Zou accept Medicare?
Yes. CMS lists Dr. Zou as accepting Medicare assignment.
Does Dr. Winnie Yiyun Zou offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Zou as offering telehealth services.
Where did Dr. Winnie Yiyun Zou go to medical school?
Dr. Zou graduated from Baylor College of Medicine in 2019.
Has Dr. Winnie Yiyun Zou received payments from drug or device companies?
CMS Open Payments shows $256 in general payments to Dr. Zou from 3 companies from 2025 to 2025. The largest total came from Celltrion USA Inc.
How long has Dr. Winnie Yiyun Zou been practicing?
Dr. Zou graduated from medical school in 2019, 7 years ago.
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