Dr. Theresa Wai Ling Chan, MD
- Medicare services, 2024
- 515
- Medicare patients, 2024
- 247
- Part D claims, 2024
- 40
- MIPS score, 2024
- 97
- Hospital affiliations
- 4
- Practice address
- 8880 E Desert Cove Ave, Scottsdale, AZ 85260
- Practice phone
- Call (480) 821-2838
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Ironwood Cancer & Research Centers
Scottsdale, Arizona
Find Dr. Chan'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. Theresa Wai Ling Chan is a general surgeon in Scottsdale, Arizona
Dr. Chan practices at Ironwood Cancer & Research Centers in Scottsdale, Arizona.
Dr. Chan's NPI, 1669810156, was assigned on June 6, 2013. Dr. Chan graduated from University of Cincinnati College of Medicine in 2013. Dr. Chan holds Arizona license 63677.
- NPI
- 1669810156NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1153615497
- NPI enumeration date
- June 6, 2013
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (480) 821-2838
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 39
- Medical school graduation
- 2013
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Theresa Wai Ling Chan practices at Ironwood Cancer & Research Centers in Scottsdale, Arizona
Dr. Chan's primary practice is Ironwood Cancer & Research Centers, at 8880 E Desert Cove Ave, Scottsdale, AZ 85260 in Maricopa County. The practice phone is (480) 821-2838.
- Ironwood Cancer & Research Centers8880 E Desert Cove Ave, Scottsdale, AZ 85260 · Maricopa CountyPhone(480) 821-2838
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Theresa Wai Ling Chan is affiliated with 6 sites of care and 1 medical group
Dr. Chan's primary practice is Ironwood Cancer & Research Centers in Scottsdale, Arizona. Dr. Chan is also affiliated with HonorHealth Scottsdale Shea Medical Center. The medical group on file is Ironwood Cancer & Research Centers. Dmand AI also links Dr. Chan to 3 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. Theresa Wai Ling Chan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chan practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Ironwood Cancer & Research Centers | Available with a free account |
| +5 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Theresa Wai Ling Chan is one of 617 general surgeons in Arizona
Surgery is Dr. Chan's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Chan is licensed in Arizona.
Specialties and state licenses
- Surgery, ArizonaPrimary
General surgeons near Dr. Chan
Counts of general 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. Theresa Wai Ling Chan billed Medicare for 515 services in 2024
CMS data shows 515 Medicare services from Dr. Chan across 10 procedure codes in 2024, for 247 Medicare patients. Medicare paid $55,010 for them.
Dr. Chan's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2662024: 40050%
- Surgery
- 2023: 842024: 7313%
- Imaging
- 2023: 392024: 428%
Where Dr. Chan's Medicare services took place, 2024
- In an office40078%
- In a facility11522%
Dr. Chan compared with the Arizona median for general surgeons, 2024
- Dr. Chan
- Arizona median
- Medicare services
- 515vs 1623.2 times
- Medicare patients
- 247vs 1162.1 times
- Part D claims
- 12vs 3161% below
Medians across 545 general surgeons in Arizona 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. Theresa Wai Ling Chan treated 247 Medicare patients in 2024, average age 76
CMS counts 247 Medicare patients who saw Dr. Chan in 2024. The largest group is 75 to 84, with 112 patients. 75% of them have high cholesterol, and 74% have cancer. Their average risk score is 0.92, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Chan's median patient age at 64, with 98% women.
Dr. Chan's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Dr. Chan's Medicare patients, 2024
- High cholesterol75%
- Cancer74%
- High blood pressure60%
- Arthritis46%
- Osteoporosis29%
- Anxiety28%
- Mood disorders18%
- Diabetes17%
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 64
Patient panel by sex, all payers
- Women98%
- Men1%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Theresa Wai Ling Chan wrote 40 Medicare Part D claims in 2024
In 2024, Dr. Chan wrote 40 Medicare Part D claims for 25 patients. 98% of them were for generic drugs. CMS names the drug for 12 of them, across 1 drug with 11 or more claims each, at $148 in total drug cost. In 2021, CMS named 15 claims across 1 drug.
Dr. Chan's Part D claims by kind of drug, 2024
- Generic39 claims98%
- Brand-name and other1 claims3%
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.
Part D claims for drugs CMS names, 2021 to 2024
- 2021
- 2024
- Claims for drugs CMS names
- 2021: 152024: 1220%
Drugs named by CMS: 1 in 2024, 1 in 2021.
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. Theresa Wai Ling Chan scored 97 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 97 out of 100 for Dr. Chan for performance year 2024. Dr. Chan accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Chan as offering telehealth. CMS counts 33 procedures of mastectomy by Dr. Chan, more than 88% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Chan's MIPS scores, performance year 2024
- 97of 100Final score
- 96of 100Quality
- 98of 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
- Mastectomy
- 88th percentile33 procedures
- Melanoma (skin cancer) excision
- 66th percentile12 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Removal of tissue: 1 to 10 procedures (CMS shows small counts as a range)
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. Theresa Wai Ling Chan received $7,307 in industry payments from 2016 to 2025
CMS Open Payments shows 167 general payments to Dr. Chan from 56 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 85% of the total. Endomagnetics Ltd paid the most, $1,600.
General payments to Dr. Chan by program year, 2016 to 2025
General payments to Dr. Chan by kind, 2016 to 2025
- Food and beverage$6,22085%
- Travel and lodging$77211%
- Entertainment$3164%
Companies that paid Dr. Chan the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Theresa Wai Ling Chan graduated from University of Cincinnati College of Medicine
Dr. Chan graduated from University of Cincinnati College of Medicine in 2013.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Theresa Wai Ling 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) |
| 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. Theresa Wai Ling 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. Theresa Wai Ling Chan's NPI number?
Dr. Theresa Wai Ling Chan's NPI number is 1669810156. It was assigned on June 6, 2013, and it is active in the NPI Registry.
What kind of doctor is Dr. Theresa Wai Ling Chan?
Dr. Theresa Wai Ling Chan is a general surgeon in Scottsdale, Arizona. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Theresa Wai Ling Chan practice?
Dr. Chan practices at 8880 E Desert Cove Ave, Scottsdale, AZ 85260. Dr. Chan's primary practice is Ironwood Cancer & Research Centers in Scottsdale, Arizona. Dmand AI also links Dr. Chan to 3 hospitals and 1 group practice or clinic.
What is Dr. Theresa Wai Ling Chan's office phone number?
The practice phone on file for Dr. Chan is (480) 821-2838.
What is Dr. Theresa Wai Ling Chan's medical license number?
Dr. Chan holds Arizona license 63677.
Which hospitals is Dr. Theresa Wai Ling Chan affiliated with?
Dr. Chan is affiliated with HonorHealth Scottsdale Shea Medical Center. Dmand AI links Dr. Chan to 3 more hospitals.
What medical group is Dr. Theresa Wai Ling Chan part of?
Dr. Chan is linked to Ironwood Cancer & Research Centers.
Does Dr. Theresa Wai Ling Chan accept Medicare?
Yes. CMS data shows Dr. Chan billed Medicare for 515 services in 2024, and Dr. Chan accepts Medicare assignment.
Does Dr. Theresa Wai Ling Chan offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Chan as offering telehealth services.
What is Dr. Theresa Wai Ling Chan's MIPS score?
Dr. Chan's MIPS final score for performance year 2024 is 97 out of 100.
Show 6 more questionsShow fewer questions
How many Medicare patients does Dr. Theresa Wai Ling Chan see?
CMS counts 247 Medicare patients who saw Dr. Chan in 2024, with an average age of 76.
What services does Dr. Theresa Wai Ling Chan bill to Medicare?
In 2024, Dr. Chan's most billed Medicare services were office visit, established patient (99213), office visit, established patient (99214) and office visit, established patient (99215).
Where did Dr. Theresa Wai Ling Chan go to medical school?
Dr. Chan graduated from University of Cincinnati College of Medicine in 2013.
What drugs does Dr. Theresa Wai Ling Chan prescribe most?
In 2024 Medicare Part D data, Dr. Chan's most prescribed drugs by claims were Gabapentin.
Has Dr. Theresa Wai Ling Chan received payments from drug or device companies?
CMS Open Payments shows $7,307 in general payments to Dr. Chan from 56 companies from 2016 to 2025. The largest total came from Endomagnetics Ltd.
How long has Dr. Theresa Wai Ling Chan been practicing?
Dr. Chan graduated from medical school in 2013, 13 years ago.
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