Dr. Charles B. Yang, MD
- Medicare services, 2024
- 1,563
- Medicare patients, 2024
- 531
- Part D claims, 2024
- 3,541
- MIPS score, 2024
- 85
- Hospital affiliations
- 2
- Practice address
- 1249 W Liebau Rd, Mequon, WI 53092
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Eye Physician Associates Sc - HOPD
Acute Care Hospital outpatient department · Mequon, Wisconsin
Find Dr. Yang'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. Charles B. Yang is an ophthalmologist in Mequon, Wisconsin
Dr. Yang practices at Eye Physician Associates Sc - HOPD in Mequon, Wisconsin.
Dr. Yang's NPI, 1992784250, was assigned on January 13, 2006. Dr. Yang graduated from University of Chicago, Pritzker School of Medicine in 1992. Dr. Yang holds Wisconsin license 38671.
- NPI
- 1992784250NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1052383536
- NPI enumeration date
- January 13, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 60
- Medical school graduation
- 1992
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Charles B. Yang practices at Eye Physician Associates Sc - HOPD in Mequon, Wisconsin
Dr. Yang's primary practice is Eye Physician Associates Sc - HOPD, at 1249 W Liebau Rd, Mequon, WI 53092.
- Eye Physician Associates Sc - HOPD1249 W Liebau Rd, Mequon, WI 53092
Source: Dmand AI Affiliation Data
Dr. Charles B. Yang is affiliated with 4 sites of care and 1 medical group
Dr. Yang's primary practice is Eye Physician Associates Sc - HOPD in Mequon, Wisconsin. Dr. Yang is also affiliated with Aurora St. Luke's Medical Center. Dmand AI also links Dr. Yang to 1 more hospital, 1 group practice or clinic and 1 medical group, each named with a free account. Dr. Yang's employer is on file too: a hospital.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Charles B. Yang's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Yang practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Eye Physician Associates Sc - HOPD | Available with a free account |
| +3 more sites and 1 medical group | 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 each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Charles B. Yang is one of 328 ophthalmologists in Wisconsin
Ophthalmology is Dr. Yang's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. Yang is licensed in Wisconsin.
Specialties and state licenses
- Ophthalmology, WisconsinPrimary
Ophthalmologists near Dr. Yang
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. Charles B. Yang billed Medicare for 1,563 services in 2024
CMS data shows 1,563 Medicare services from Dr. Yang across 17 procedure codes in 2024, for 531 Medicare patients. Medicare paid $113,605 for them.
Dr. Yang's Medicare services by type, 2024
- Tests and treatments833
- Office and hospital visits557
- Surgery173
Where Dr. Yang's Medicare services took place, 2024
- In an office1,40590%
- In a facility15810%
Dr. Yang compared with the Wisconsin median for ophthalmologists, 2024
- Dr. Yang
- Wisconsin median
- Medicare services
- 1,563vs 1,16235% above
- Medicare patients
- 531vs 45018% above
- Part D claims
- 3,457vs 6155.6 times
Medians across 346 ophthalmologists in Wisconsin with Dmand AI profiles that report each measure.
Dr. Yang'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. Yang?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Yang and other ophthalmologists in Wisconsin.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Charles B. Yang treated 531 Medicare patients in 2024, average age 78
CMS counts 531 Medicare patients who saw Dr. Yang in 2024. The largest group is 75 to 84, with 209 patients. 75% of them have high cholesterol, and 70% have high blood pressure. 10% are also on Medicaid. Their average risk score is 1.23, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Yang's median patient age at 75, with 59% women.
Dr. Yang's Medicare patients by age, 2024
Dr. Yang's Medicare patients by sex, 2024
- Women31960%
- Men21240%
Chronic conditions among Dr. Yang's Medicare patients, 2024
- High cholesterol75%
- High blood pressure70%
- Arthritis47%
- Chronic kidney disease29%
- Ischemic heart disease28%
- Diabetes26%
- Cancer21%
- Mood disorders20%
Share of Medicare patients with each condition. A patient can have several.
Dr. Yang's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 75
Patient panel by sex, all payers
- Women59%
- Men40%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Charles B. Yang wrote 3,541 Medicare Part D claims in 2024
In 2024, Dr. Yang wrote 3,541 Medicare Part D claims for 626 patients. 60% of them were for generic drugs. CMS names the drug for 3,457 of them, across 25 drugs with 11 or more claims each, at $430,299 in total drug cost.
Dr. Yang's Part D claims by kind of drug, 2024
- Generic2,137 claims60%
- Brand-name1,404 claims40%
Dr. Yang'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.
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. Charles B. Yang scored 85 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 85 out of 100 for Dr. Yang for performance year 2024, reported as part of a group. Dr. Yang accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 131 procedures of cataract surgery by Dr. Yang, more than 78% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Dr. Yang's MIPS scores, performance year 2024
- 85of 100Final score
- 83.6of 100Quality
- 40of 100Improvement Activities
- 71of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Yang ranks in Medicare procedure volume
- Cataract surgery
- 78th percentile131 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Charles B. Yang received $3,964 in industry payments from 2024 to 2025
CMS Open Payments shows 63 general payments to Dr. Yang from 13 drug and device companies from 2024 to 2025. Speaker and faculty fees make up the largest share, 63% of the total. Sight Sciences, Inc. paid the most, $2,618.
General payments to Dr. Yang by program year, 2024 to 2025
General payments to Dr. Yang by kind, 2024 to 2025
- Speaker and faculty fees$2,50063%
- Food and beverage$1,46437%
Companies that paid Dr. Yang the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Charles B. Yang graduated from University of Chicago, Pritzker School of Medicine
Dr. Yang graduated from University of Chicago, Pritzker School of Medicine in 1992.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Charles B. Yang'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 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)Clinician Public Reporting: Overall MIPS Performance (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. Charles B. Yang
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. Charles B. Yang's NPI number?
Dr. Charles B. Yang's NPI number is 1992784250. It was assigned on January 13, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Charles B. Yang?
Dr. Charles B. Yang is an ophthalmologist in Mequon, Wisconsin. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. Charles B. Yang practice?
Dr. Yang practices at 1249 W Liebau Rd, Mequon, WI 53092. Dr. Yang's primary practice is Eye Physician Associates Sc - HOPD in Mequon, Wisconsin. Dmand AI also links Dr. Yang to 1 hospital, 1 group practice or clinic and 1 medical group.
What is Dr. Charles B. Yang's medical license number?
Dr. Yang holds Wisconsin license 38671.
Which hospitals is Dr. Charles B. Yang affiliated with?
Dr. Yang is affiliated with Aurora St. Luke's Medical Center. Dmand AI links Dr. Yang to 1 more hospital.
Does Dr. Charles B. Yang accept Medicare?
Yes. CMS data shows Dr. Yang billed Medicare for 1,563 services in 2024, and Dr. Yang accepts Medicare assignment.
What is Dr. Charles B. Yang's MIPS score?
Dr. Yang's MIPS final score for performance year 2024 is 85 out of 100, reported as part of a group.
How many Medicare patients does Dr. Charles B. Yang see?
CMS counts 531 Medicare patients who saw Dr. Yang in 2024, with an average age of 78.
What services does Dr. Charles B. Yang bill to Medicare?
In 2024, Dr. Yang's most billed Medicare services were office visit, established patient (99214), eye exam or test (92133) and eye exam or test (92083).
Where did Dr. Charles B. Yang go to medical school?
Dr. Yang graduated from University of Chicago, Pritzker School of Medicine in 1992.
Show 3 more questionsShow fewer questions
What drugs does Dr. Charles B. Yang prescribe most?
In 2024 Medicare Part D data, Dr. Yang's most prescribed drugs by claims were Latanoprost, Dorzolamide-Timolol and Timolol Maleate.
Has Dr. Charles B. Yang received payments from drug or device companies?
CMS Open Payments shows $3,964 in general payments to Dr. Yang from 13 companies from 2024 to 2025. The largest total came from Sight Sciences, Inc.
How long has Dr. Charles B. Yang been practicing?
Dr. Yang graduated from medical school in 1992, 34 years ago.
Selling to ophthalmology practices?
See ophthalmologists in Wisconsin by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card