Dr. Yanjun Chen, MD
- Medicare services, 2024
- 545
- Medicare patients, 2024
- 191
- Part D claims, 2024
- 62
- Hospital affiliations
- 1
- Industry payments
- $157
- Practice address
- 600 Highland Ave, Madison, WI 53792
- Practice phone
- Call (608) 265-1978
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
University Health Services - Madison (Highland Ave)
College / University Student Health · Madison, Wisconsin
Find Dr. Chen's professional email, personal email and mobile number
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Dr. Yanjun Chen is an ophthalmologist in Madison, Wisconsin
Dr. Chen practices at University Health Services - Madison (Highland Ave) in Madison, Wisconsin.
Dr. Chen's NPI, 1235332867, was assigned on June 10, 2007. Dr. Chen holds Wisconsin license 56541.
- NPI
- 1235332867NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3476605601
- NPI enumeration date
- June 10, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (608) 265-1978
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 58
- Medical school graduation
- 1994
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Yanjun Chen practices at University Health Services - Madison (Highland Ave) in Madison, Wisconsin
Dr. Chen's primary practice is University Health Services - Madison (Highland Ave), at 600 Highland Ave, Madison, WI 53792. The practice phone is (608) 265-1978.
- University Health Services - Madison (Highland Ave)600 Highland Ave, Madison, WI 53792Phone(608) 265-1978
Source: Dmand AI Affiliation Data
Dr. Yanjun Chen is affiliated with 4 sites of care and 2 medical groups
Dr. Chen's primary practice is University Health Services - Madison (Highland Ave) in Madison, Wisconsin. Dr. Chen is also affiliated with University Hospital. The medical group on file is UW Health. Dmand AI also links Dr. Chen to 2 more group practices and clinics and 1 medical group, each named with a free account. Dr. Chen'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. Yanjun Chen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chen practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| University Health Services - Madison (Highland Ave) | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Yanjun Chen is one of 328 ophthalmologists in Wisconsin
Ophthalmology is Dr. Chen's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. Chen is licensed in Wisconsin.
Specialties and state licenses
- Ophthalmology, WisconsinPrimary
Ophthalmologists near Dr. Chen
Counts of ophthalmologists 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. Yanjun Chen billed Medicare for 545 services in 2024
CMS data shows 545 Medicare services from Dr. Chen across 9 procedure codes in 2024, for 191 Medicare patients. Medicare paid $22,899 for them. Every service was in an office.
Dr. Chen's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2352024: 2423%
- Tests and treatments
- 2023: 1902024: 22116%
- Other services
- 2023: 02024: 82
Dr. Chen compared with the Wisconsin median for ophthalmologists, 2024
- Dr. Chen
- Wisconsin median
- Medicare services
- 545vs 1,16253% below
- Medicare patients
- 191vs 45058% below
- Part D claims
- 42vs 61593% below
Medians across 346 ophthalmologists in Wisconsin with Dmand AI profiles that report each measure.
Dr. Chen'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. Chen and other ophthalmologists in Wisconsin.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Yanjun Chen treated 191 Medicare patients in 2024, average age 71
CMS counts 191 Medicare patients who saw Dr. Chen in 2024. The largest group is 65 to 74, with 88 patients. 72% of them have high blood pressure, and 63% have high cholesterol. 15% are also on Medicaid. Their average risk score is 1.30, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Chen's median patient age at 56, with 66% women.
Dr. Chen's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Chen's Medicare patients by sex, 2024
- Women12063%
- Men7137%
Chronic conditions among Dr. Chen's Medicare patients, 2024
- High blood pressure72%
- High cholesterol63%
- Mood disorders40%
- Arthritis38%
- Anxiety35%
- Depression34%
- Stroke or TIA23%
- Osteoporosis22%
Share of Medicare patients with each condition. A patient can have several.
Dr. Chen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 56
Patient panel by sex, all payers
- Women66%
- Men32%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Yanjun Chen wrote 62 Medicare Part D claims in 2024
In 2024, Dr. Chen wrote 62 Medicare Part D claims for 25 patients. 89% of them were for generic drugs. CMS names the drug for 42 of them, across 3 drugs with 11 or more claims each, at $1,218 in total drug cost. In 2022, CMS named 43 claims across 2 drugs.
Dr. Chen's Part D claims by kind of drug, 2024
- Generic55 claims89%
- Brand-name and other7 claims11%
Dr. Chen's most prescribed drugs by claims, 2023
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 432023: 422%
Drugs named by CMS: 3 in 2023, 2 in 2022.
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
How Dr. Yanjun Chen takes part in Medicare
Dr. Chen accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Yanjun Chen received $157 in industry payments from 2016 to 2024
CMS Open Payments shows 3 general payments to Dr. Chen from 3 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 100% of the total. Amgen Inc. paid the most, $75.
General payments to Dr. Chen by program year, 2016 to 2024
Companies that paid Dr. Chen the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Yanjun Chen'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) |
| 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. Yanjun Chen
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. Yanjun Chen's NPI number?
Dr. Yanjun Chen's NPI number is 1235332867. It was assigned on June 10, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Yanjun Chen?
Dr. Yanjun Chen is an ophthalmologist in Madison, Wisconsin. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. Yanjun Chen practice?
Dr. Chen practices at 600 Highland Ave, Madison, WI 53792. Dr. Chen's primary practice is University Health Services - Madison (Highland Ave) in Madison, Wisconsin. Dmand AI also links Dr. Chen to 2 group practices and clinics and 1 medical group.
What is Dr. Yanjun Chen's office phone number?
The practice phone on file for Dr. Chen is (608) 265-1978.
What is Dr. Yanjun Chen's medical license number?
Dr. Chen holds Wisconsin license 56541.
Which hospitals is Dr. Yanjun Chen affiliated with?
Dr. Chen is affiliated with University Hospital.
What medical group is Dr. Yanjun Chen part of?
Dr. Chen is linked to UW Health. Dmand AI links Dr. Chen to 1 more medical group.
Does Dr. Yanjun Chen accept Medicare?
Yes. CMS data shows Dr. Chen billed Medicare for 545 services in 2024, and Dr. Chen accepts Medicare assignment.
How many Medicare patients does Dr. Yanjun Chen see?
CMS counts 191 Medicare patients who saw Dr. Chen in 2024, with an average age of 71.
What services does Dr. Yanjun Chen bill to Medicare?
In 2024, Dr. Chen's most billed Medicare services were eye exam or test (92083), medicare service (G2211) and office visit, new patient (99204).
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What drugs does Dr. Yanjun Chen prescribe most?
In 2023 Medicare Part D data, Dr. Chen's most prescribed drugs by claims were Gabapentin, Apraclonidine HCl and Pentoxifylline.
Has Dr. Yanjun Chen received payments from drug or device companies?
CMS Open Payments shows $157 in general payments to Dr. Chen from 3 companies from 2016 to 2024. The largest total came from Amgen Inc.
How long has Dr. Yanjun Chen been practicing?
Dr. Chen graduated from medical school in 1994, 32 years ago.
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