Dr. Wayne Wayfu Chan, MD
- Medicare services, 2024
- 532
- Medicare patients, 2024
- 321
- Part D claims, 2024
- 43
- Publications
- 8
- MIPS score, 2024
- 100
- Practice address
- 55 North Ave, Mendon, MA 01756
- 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 Center
Mendon, Massachusetts
Find Dr. Chan's professional email, personal email and mobile number
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Dr. Wayne Wayfu Chan is an orthopedic surgeon in Mendon, Massachusetts
Dr. Chan practices at Umass Memorial Medical Center in Mendon, Massachusetts.
Dr. Chan's NPI, 1013275114, was assigned on April 25, 2012. Dr. Chan graduated from Tufts University School of Medicine in 2012. Dr. Chan holds Massachusetts license 275029.
- NPI
- 1013275114NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1759601917
- NPI enumeration date
- April 25, 2012
- 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
- 40
- Medical school graduation
- 2012
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Wayne Wayfu Chan practices at Umass Memorial Medical Center in Mendon, Massachusetts
Dr. Chan's primary practice is Umass Memorial Medical Center, at 55 North Ave, Mendon, MA 01756 in Worcester County. The practice phone is (508) 334-1000.
- Umass Memorial Medical Center55 North Ave, Mendon, MA 01756 · Worcester CountyPhone(508) 334-1000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Wayne Wayfu Chan is affiliated with 7 sites of care and 1 medical group
Dr. Chan's primary practice is Umass Memorial Medical Center in Mendon, Massachusetts. Dr. Chan is also affiliated with UMass Memorial Medical Center - University Campus. The medical group on file is UMass Memorial Medical Group. Dmand AI also links Dr. Chan to 4 more hospitals and 1 group practice or clinic, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Wayne Wayfu Chan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chan practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Umass Memorial Medical Center | Available with a free account |
| +6 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Wayne Wayfu Chan is one of 593 orthopedic surgeons in Massachusetts
Orthopaedic surgery is Dr. Chan's primary specialty in the NPI Registry, under taxonomy code 207X00000X. Dr. Chan is licensed in Massachusetts.
Specialties and state licenses
- Orthopaedic surgery, MassachusettsPrimary
Orthopedic surgeons near Dr. Chan
Counts of orthopedic surgeons 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. Wayne Wayfu Chan billed Medicare for 532 services in 2024
CMS data shows 532 Medicare services from Dr. Chan across 8 procedure codes in 2024, for 321 Medicare patients. Medicare paid $49,362 for them.
Dr. Chan's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4792024: 39717%
- Surgery
- 2023: 832024: 7114%
- Drugs given in the office
- 2023: 02024: 64
Where Dr. Chan's Medicare services took place, 2024
- In an office51998%
- In a facility132%
Dr. Chan compared with the Massachusetts median for orthopedic surgeons, 2024
- Dr. Chan
- Massachusetts median
- Medicare services
- 532vs 67221% below
- Medicare patients
- 321vs 3026% above
- Part D claims
- 36vs 5028% below
Medians across 543 orthopedic surgeons in Massachusetts with Dmand AI profiles that report each measure.
Dr. Chan'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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Wayne Wayfu Chan treated 321 Medicare patients in 2024, average age 73
CMS counts 321 Medicare patients who saw Dr. Chan in 2024. The largest group is 65 to 74, with 139 patients. 75% of them have high cholesterol, and 74% have high blood pressure. 30% are also on Medicaid. Their average risk score is 1.40, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Chan's median patient age at 68, with 45% women.
Dr. Chan's Medicare patients by age, 2024
Dr. Chan's Medicare patients by sex, 2024
- Women18156%
- Men14044%
Chronic conditions among Dr. Chan's Medicare patients, 2024
- High cholesterol75%
- High blood pressure74%
- Arthritis68%
- Anxiety33%
- Mood disorders33%
- Diabetes32%
- Ischemic heart disease29%
- Depression28%
Share of Medicare patients with each condition. A patient can have several.
Dr. Chan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women45%
- Men54%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Wayne Wayfu Chan wrote 43 Medicare Part D claims in 2024
In 2024, Dr. Chan wrote 43 Medicare Part D claims for 30 patients. 100% of them were for generic drugs. CMS names the drug for 36 of them, across 2 drugs with 11 or more claims each, at $108 in total drug cost. In 2023, CMS named 11 claims across 1 drug.
Dr. Chan'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. Chan's Part D claims, 2024
- Opioids49%21 of 43 claims
- Antibiotics47%20 of 43 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: 112024: 36227%
Drugs named by CMS: 2 in 2024, 1 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. Wayne Wayfu Chan 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. Chan for performance year 2024, reported through an alternative payment model (APM). Dr. Chan accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 34 procedures of upper limb (arm) arthroscopy (minimally invasive joint repair) by Dr. Chan, more than 77% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Dr. Chan'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.
Where Dr. Chan ranks in Medicare procedure volume
- Upper limb (arm) arthroscopy (minimally invasive joint repair)
- 77th percentile34 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Lower limb (leg) arthroscopy (minimally invasive joint repair): 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. Wayne Wayfu Chan has 8 publications on record
Dmand AI links 8 papers to Dr. Chan, published from 2016 to 2024. 2016 was the busiest year, with 2. The most frequent topics are Arthroplasty, Replacement, Shoulder and Fusion Proteins, bcr-abl. Dr. Chan has published most often in J Shoulder Elbow Surg. Dr. Chan's most frequent co-authors are Joseph Albert Abboud, MD, Tyler James Brolin, MD and Brian D. Busconi, MD.
Dr. Chan's papers by year, 2016 to 2024
Topics Dr. Chan writes about most
- Arthroplasty, Replacement, Shoulder
- Fusion Proteins, bcr-abl
Dr. Chan's most frequent co-authors
- Joseph Albert Abboud, MD1 shared paper
- Tyler James Brolin, MD1 shared paper
- Brian D. Busconi, MD1 shared paper
Recent publications by Dr. Chan
J Shoulder Elbow Surg
J Shoulder Elbow Surg
See who Dr. Chan researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Chan works with, so you can find a warm path to the right orthopedic surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Wayne Wayfu Chan received $18,813 in industry payments from 2017 to 2025
CMS Open Payments shows 78 general payments to Dr. Chan from 17 drug and device companies from 2017 to 2025. Education make up the largest share, 36% of the total. Kairos Surgical Inc paid the most, $5,122.
General payments to Dr. Chan by program year, 2017 to 2025
General payments to Dr. Chan by kind, 2017 to 2025
- Education$6,73136%
- Travel and lodging$6,60635%
- Food and beverage$3,97521%
- Honoraria$1,5008%
Companies that paid Dr. Chan the most, 2017 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Wayne Wayfu Chan graduated from Tufts University School of Medicine
Dr. Chan graduated from Tufts University School of Medicine in 2012.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Wayne Wayfu Chan'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 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) |
| 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. Wayne Wayfu Chan
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. Wayne Wayfu Chan's NPI number?
Dr. Wayne Wayfu Chan's NPI number is 1013275114. It was assigned on April 25, 2012, and it is active in the NPI Registry.
What kind of doctor is Dr. Wayne Wayfu Chan?
Dr. Wayne Wayfu Chan is an orthopedic surgeon in Mendon, Massachusetts. The primary specialty in the NPI Registry is Orthopaedic Surgery Physician (taxonomy code 207X00000X).
Where does Dr. Wayne Wayfu Chan practice?
Dr. Chan practices at 55 North Ave, Mendon, MA 01756. Dr. Chan's primary practice is Umass Memorial Medical Center in Mendon, Massachusetts. Dmand AI also links Dr. Chan to 4 hospitals and 1 group practice or clinic.
What is Dr. Wayne Wayfu Chan's office phone number?
The practice phone on file for Dr. Chan is (508) 334-1000.
What is Dr. Wayne Wayfu Chan's medical license number?
Dr. Chan holds Massachusetts license 275029.
Which hospitals is Dr. Wayne Wayfu Chan affiliated with?
Dr. Chan is affiliated with UMass Memorial Medical Center - University Campus. Dmand AI links Dr. Chan to 4 more hospitals.
What medical group is Dr. Wayne Wayfu Chan part of?
Dr. Chan is linked to UMass Memorial Medical Group.
Does Dr. Wayne Wayfu Chan accept Medicare?
Yes. CMS data shows Dr. Chan billed Medicare for 532 services in 2024, and Dr. Chan accepts Medicare assignment.
What is Dr. Wayne Wayfu Chan's MIPS score?
Dr. Chan'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. Wayne Wayfu Chan see?
CMS counts 321 Medicare patients who saw Dr. Chan in 2024, with an average age of 73.
Show 7 more questionsShow fewer questions
What services does Dr. Wayne Wayfu Chan bill to Medicare?
In 2024, Dr. Chan's most billed Medicare services were office visit, established patient (99214), office visit, new patient (99203) and injected or infused drug (J3301).
Where did Dr. Wayne Wayfu Chan go to medical school?
Dr. Chan graduated from Tufts University School of Medicine in 2012.
What drugs does Dr. Wayne Wayfu Chan prescribe most?
In 2024 Medicare Part D data, Dr. Chan's most prescribed drugs by claims were Amoxicillin and Oxycodone HCl.
Has Dr. Wayne Wayfu Chan received payments from drug or device companies?
CMS Open Payments shows $18,813 in general payments to Dr. Chan from 17 companies from 2017 to 2025. The largest total came from Kairos Surgical Inc.
How long has Dr. Wayne Wayfu Chan been practicing?
Dr. Chan graduated from medical school in 2012, 14 years ago.
Does Dr. Wayne Wayfu Chan do research?
Dmand AI links 8 publications to Dr. Chan, published from 2016 to 2024.
Who does Dr. Wayne Wayfu Chan publish with?
Dr. Chan's most frequent co-authors are Joseph Albert Abboud, MD (1 shared paper), Tyler James Brolin, MD (1 shared paper) and Brian D. Busconi, MD (1 shared paper).
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