Dr. Wei-Che C. Ko, MD
- Medicare services, 2024
- 1,840
- Medicare patients, 2024
- 39
- Part D claims, 2020
- 326
- Publications
- 10
- MIPS score, 2024
- 100
- Practice address
- 55 Lake N Ave, Worcester, MA 01605
- Practice phone
- Call (508) 334-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Umass Memorial Medical Group Inc
Worcester, Massachusetts
Find Dr. Ko'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. Wei-Che C. Ko is a dermatologist in Worcester, Massachusetts
Dr. Ko practices at Umass Memorial Medical Group Inc in Worcester, Massachusetts.
Dr. Ko's NPI, 1821523606, was assigned on April 28, 2017. Dr. Ko graduated from University of Massachusetts Medical School in 2017. Dr. Ko holds Massachusetts license 287348.
- NPI
- 1821523606NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1658645833
- NPI enumeration date
- April 28, 2017
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (508) 334-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 35
- Medical school graduation
- 2017
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Wei-Che C. Ko practices at Umass Memorial Medical Group Inc in Worcester, Massachusetts
Dr. Ko's primary practice is Umass Memorial Medical Group Inc, at 55 Lake N Ave, Worcester, MA 01605 in Worcester County. The practice phone is (508) 334-1000.
- Umass Memorial Medical Group Inc55 Lake N Ave, Worcester, MA 01605 · Worcester CountyPhone(508) 334-1000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Wei-Che C. Ko is affiliated with 2 sites of care and 1 medical group
Dr. Ko's primary practice is Umass Memorial Medical Group Inc in Worcester, Massachusetts. Dr. Ko is also affiliated with UMass Memorial Medical Center - University Campus. The medical group on file is UMass Memorial Medical Group.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Wei-Che C. Ko's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ko practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Umass Memorial Medical Group Inc | 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. Wei-Che C. Ko is one of 562 dermatologists in Massachusetts
Dermatology is Dr. Ko's primary specialty in the NPI Registry, under taxonomy code 207N00000X. Dr. Ko is licensed in Massachusetts.
Specialties and state licenses
- Dermatology, MassachusettsPrimary
Dermatologists near Dr. Ko
Counts of dermatologists 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. Wei-Che C. Ko billed Medicare for 1,840 services in 2024
CMS data shows 1,840 Medicare services from Dr. Ko across 2 procedure codes in 2024, for 39 Medicare patients. Medicare paid $11,778 for them. Every service was in an office.
Dr. Ko's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 1,3662024: 1,79631%
- Office and hospital visits
- 2023: 332024: 4433%
Dr. Ko compared with the Massachusetts median for dermatologists, 2024
- Dr. Ko
- Massachusetts median
- Medicare services
- 1,840vs 1,61014% above
- Medicare patients
- 39vs 48992% below
- Part D claims
- 326vs 3476% below
Medians across 559 dermatologists in Massachusetts with Dmand AI profiles that report each measure.
Dr. Ko'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. Ko and other dermatologists in Massachusetts.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Wei-Che C. Ko treated 39 Medicare patients in 2024, average age 69
CMS counts 39 Medicare patients who saw Dr. Ko in 2024. The largest group is 65 to 74, with 14 patients. 72% of them have high cholesterol, and 67% have high blood pressure. 33% are also on Medicaid. Their average risk score is 1.47, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Ko's median patient age at 53, with 71% women.
Dr. Ko's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Ko's Medicare patients by sex, 2024
- Women2564%
- Men1436%
Chronic conditions among Dr. Ko's Medicare patients, 2024
- High cholesterol72%
- High blood pressure67%
- Arthritis44%
- Chronic kidney disease31%
- Diabetes28%
Share of Medicare patients with each condition. A patient can have several.
Dr. Ko's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 53
Patient panel by sex, all payers
- Women71%
- Men29%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Wei-Che C. Ko wrote 326 Medicare Part D claims in 2020
In 2020, Dr. Ko wrote 326 Medicare Part D claims. They cover 12 drugs, with $192,973 in total drug cost. In 2019, CMS named 448 claims across 16 drugs.
Dr. Ko's most prescribed drugs by claims, 2020
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, 2019 to 2020
- 2019
- 2020
- Claims for drugs CMS names
- 2019: 4482020: 32627%
Drugs named by CMS: 12 in 2020, 16 in 2019.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
Dr. Wei-Che C. Ko scored 100 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 100 out of 100 for Dr. Ko for performance year 2024, reported through an alternative payment model (APM). Dr. Ko accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Ko's MIPS scores, performance year 2024
- 100of 100Final score
- 83of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Skin biopsy: 1 to 10 procedures (CMS shows small counts as a range)
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)
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Dr. Wei-Che C. Ko has 10 publications on record
Dmand AI links 10 papers to Dr. Ko, published from 2012 to 2025. 2024 was the busiest year, with 2. The most frequent topics are Skin, Dermatitis, Allergic Contact and Gene Expression Profiling. Dr. Ko has published most often in Dermatitis. Dr. Ko's most frequent co-authors are John E. Harris, MD, Shinya U. Amano, MD and Bruce Allen Barton, MD.
Dr. Ko's papers by year, 2012 to 2025
Topics Dr. Ko writes about most
- Skin
- Dermatitis, Allergic Contact
- Gene Expression Profiling
Dr. Ko's most frequent co-authors
- John E. Harris, MD5 shared papers
- Shinya U. Amano, MD1 shared paper
- Bruce Allen Barton, MD1 shared paper
Recent publications by Dr. Ko
J Invest Dermatol
Dermatitis
See who Dr. Ko researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Ko works with, so you can find a warm path to the right dermatologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Wei-Che C. Ko received $522 in industry payments from 2017 to 2024
CMS Open Payments shows 15 general payments to Dr. Ko from 10 drug and device companies from 2017 to 2024. Food and beverage make up the largest share, 100% of the total. Sanofi and Genzyme US Companies paid the most, $131.
General payments to Dr. Ko by program year, 2017 to 2024
Companies that paid Dr. Ko the most, 2017 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Wei-Che C. Ko graduated from University of Massachusetts Medical School
Dr. Ko graduated from University of Massachusetts Medical School in 2017.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Wei-Che C. Ko'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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) |
| 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. Wei-Che C. Ko
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. Wei-Che C. Ko's NPI number?
Dr. Wei-Che C. Ko's NPI number is 1821523606. It was assigned on April 28, 2017, and it is active in the NPI Registry.
What kind of doctor is Dr. Wei-Che C. Ko?
Dr. Wei-Che C. Ko is a dermatologist in Worcester, Massachusetts. The primary specialty in the NPI Registry is Dermatology Physician (taxonomy code 207N00000X).
Where does Dr. Wei-Che C. Ko practice?
Dr. Ko practices at 55 Lake N Ave, Worcester, MA 01605. Dr. Ko's primary practice is Umass Memorial Medical Group Inc in Worcester, Massachusetts.
What is Dr. Wei-Che C. Ko's office phone number?
The practice phone on file for Dr. Ko is (508) 334-1000.
What is Dr. Wei-Che C. Ko's medical license number?
Dr. Ko holds Massachusetts license 287348.
Which hospitals is Dr. Wei-Che C. Ko affiliated with?
Dr. Ko is affiliated with UMass Memorial Medical Center - University Campus.
What medical group is Dr. Wei-Che C. Ko part of?
Dr. Ko is linked to UMass Memorial Medical Group.
Does Dr. Wei-Che C. Ko accept Medicare?
Yes. CMS data shows Dr. Ko billed Medicare for 1,840 services in 2024, and Dr. Ko accepts Medicare assignment.
What is Dr. Wei-Che C. Ko's MIPS score?
Dr. Ko's MIPS final score for performance year 2024 is 100 out of 100, reported through an alternative payment model (APM).
How many Medicare patients does Dr. Wei-Che C. Ko see?
CMS counts 39 Medicare patients who saw Dr. Ko in 2024, with an average age of 69.
Show 7 more questionsShow fewer questions
What services does Dr. Wei-Che C. Ko bill to Medicare?
In 2024, Dr. Ko's most billed Medicare services were allergy test or treatment (95044) and office visit, established patient (99214).
Where did Dr. Wei-Che C. Ko go to medical school?
Dr. Ko graduated from University of Massachusetts Medical School in 2017.
What drugs does Dr. Wei-Che C. Ko prescribe most?
In 2020 Medicare Part D data, Dr. Ko's most prescribed drugs by claims were Ketoconazole, Triamcinolone Acetonide and Mupirocin.
Has Dr. Wei-Che C. Ko received payments from drug or device companies?
CMS Open Payments shows $522 in general payments to Dr. Ko from 10 companies from 2017 to 2024. The largest total came from Sanofi and Genzyme US Companies.
How long has Dr. Wei-Che C. Ko been practicing?
Dr. Ko graduated from medical school in 2017, 9 years ago.
Does Dr. Wei-Che C. Ko do research?
Dmand AI links 10 publications to Dr. Ko, published from 2012 to 2025.
Who does Dr. Wei-Che C. Ko publish with?
Dr. Ko's most frequent co-authors are John E. Harris, MD (5 shared papers), Shinya U. Amano, MD (1 shared paper) and Bruce Allen Barton, MD (1 shared paper).
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