Dr. Yvette Lam-Tsai, MD

  • Sun City, AZ
  • Gastroenterologist
NPI1518147701PAC ID7416149455
Medicare services, 2024
1,510
Medicare patients, 2024
678
Part D claims, 2024
1,476
MIPS score, 2024
82
Hospital affiliations
2
Practice address
13640 North 99th Avenue, Suite 700, Sun City, AZ 85351
Practice phone
Call (623) 972-5083
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Sun City Endoscopy Center

Surgery Center - Medicare-Certified · Sun City, Arizona

See all 5 affiliations

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Dr. Yvette Lam-Tsai is a gastroenterologist in Sun City, Arizona

Dr. Lam-Tsai practices at Sun City Endoscopy Center in Sun City, Arizona.

Dr. Lam-Tsai's NPI, 1518147701, was assigned on November 6, 2007. Dr. Lam-Tsai graduated from State University of New York Downstate Medical Center in 2011. Dr. Lam-Tsai holds Arizona license 48670.

NPI and contact details
Medicare PAC ID
7416149455
NPI enumeration date
November 6, 2007
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(623) 972-5083
Professional email
Get email
Personal email
Get email
Mobile number
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Sex
Female
Estimated age
41
Medical school graduation
2011

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Yvette Lam-Tsai practices at Sun City Endoscopy Center in Sun City, Arizona

Dr. Lam-Tsai's primary practice is Sun City Endoscopy Center, at 13640 North 99th Avenue, Suite 700, Sun City, AZ 85351. The practice phone is (623) 972-5083.

  • Sun City Endoscopy Center
    13640 North 99th Avenue, Suite 700, Sun City, AZ 85351Phone(623) 972-5083

Source: Dmand AI Affiliation Data

Dr. Yvette Lam-Tsai is affiliated with 4 sites of care and 1 medical group

Dr. Lam-Tsai's primary practice is Sun City Endoscopy Center in Sun City, Arizona. Dr. Lam-Tsai is also affiliated with Banner Boswell Medical Center. The medical group on file is Arizona Digestive Health. Dmand AI also links Dr. Lam-Tsai to 1 more hospital and 1 group practice or clinic, each named with a free account.

See all 5 affiliations for Dr. Lam-Tsai

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Yvette Lam-Tsai's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Lam-Tsai practices, 4 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Sun City Endoscopy CenterAvailable with a free account
+3 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Yvette Lam-Tsai is one of 380 gastroenterologists in Arizona

Gastroenterology is Dr. Lam-Tsai's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dmand AI has Dr. Lam-Tsai's licenses on file in 2 states: Arizona and New York.

Specialties and state licenses

  • Gastroenterology, ArizonaPrimaryLicense 48670 · taxonomy 207RG0100X
  • New York licenseLicense 242215

Gastroenterologists near Dr. Lam-Tsai

Counts of gastroenterologists 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. Yvette Lam-Tsai billed Medicare for 1,510 services in 2024

CMS data shows 1,510 Medicare services from Dr. Lam-Tsai across 18 procedure codes in 2024, for 678 Medicare patients. Medicare paid $123,507 for them.

Medicare services, 20241,510
Medicare patients678
Paid by Medicare$123,507
Procedure codes18

Dr. Lam-Tsai's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 5622024: 78540%
Other services
2023: 832024: 342312%
Surgery
2023: 3002024: 34013%
Tests and treatments
2023: 222024: 4395%

Where Dr. Lam-Tsai's Medicare services took place, 2024

  • In an office1,02468%
  • In a facility48632%

Dr. Lam-Tsai compared with the Arizona median for gastroenterologists, 2024

  • Dr. Lam-Tsai
  • Arizona median
Medicare services
1,510vs 5083.0 times
Medicare patients
678vs 3192.1 times
Part D claims
1,228vs 3104.0 times

Medians across 369 gastroenterologists in Arizona with Dmand AI profiles that report each measure.

Dr. Lam-Tsai'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.

See all procedures by Dr. Lam-Tsai

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Yvette Lam-Tsai treated 678 Medicare patients in 2024, average age 74

CMS counts 678 Medicare patients who saw Dr. Lam-Tsai in 2024. The largest group is 65 to 74, with 364 patients. 75% of them have high cholesterol, and 72% have high blood pressure. 2% are also on Medicaid. Their average risk score is 1.15, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Lam-Tsai's median patient age at 66, with 75% women.

Medicare patients, 2024678
Average age74
Average risk score1.15
Also on Medicaid2%

Dr. Lam-Tsai's Medicare patients by age, 2024

Dr. Lam-Tsai's Medicare patients by sex, 2024

  • Women50374%
  • Men17526%

Chronic conditions among Dr. Lam-Tsai's Medicare patients, 2024

  1. High cholesterol75%
  2. High blood pressure72%
  3. Arthritis57%
  4. Anxiety34%
  5. Chronic kidney disease30%
  6. Diabetes28%
  7. Ischemic heart disease28%
  8. Mood disorders25%

Share of Medicare patients with each condition. A patient can have several.

Dr. Lam-Tsai's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 66

Patient panel by sex, all payers

  • Women75%
  • Men24%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Yvette Lam-Tsai wrote 1,476 Medicare Part D claims in 2024

In 2024, Dr. Lam-Tsai wrote 1,476 Medicare Part D claims for 508 patients. 81% of them were for generic drugs. CMS names the drug for 1,228 of them, across 27 drugs with 11 or more claims each, at $1,172,253 in total drug cost. In 2023, CMS named 1,337 claims across 33 drugs.

Part D claims, 20241,476
Drugs named by CMS27
Total drug cost$1.2M
Part D patients508

Dr. Lam-Tsai's Part D claims by kind of drug, 2024

  • Generic1,197 claims81%
  • Brand-name and other279 claims19%

Dr. Lam-Tsai'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. Lam-Tsai's Part D claims, 2024

  • Antibiotics2%30 of 1,476 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: 1,3372024: 1,2288%

Drugs named by CMS: 27 in 2024, 33 in 2023.

See all prescribing by Dr. Lam-Tsai

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. Yvette Lam-Tsai scored 82 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 82 out of 100 for Dr. Lam-Tsai for performance year 2024, reported as part of a group. Dr. Lam-Tsai accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Lam-Tsai as offering telehealth. CMS counts 292 procedures of colonoscopy by Dr. Lam-Tsai, more than 97% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Dr. Lam-Tsai's MIPS scores, performance year 2024

  • 82of 100Final score
  • 60.4of 100Quality
  • 97of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 81of 100Cost

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Where Dr. Lam-Tsai ranks in Medicare procedure volume

Colonoscopy
97th percentile292 procedures
Upper gastrointestinal (GI) endoscopy for acid reflux
88th percentile173 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)

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Dr. Yvette Lam-Tsai received $7,573 in industry payments from 2016 to 2025

CMS Open Payments shows 335 general payments to Dr. Lam-Tsai from 39 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 92% of the total. Abbvie Inc. paid the most, $1,558.

General payments to Dr. Lam-Tsai by program year, 2016 to 2025

General payments to Dr. Lam-Tsai by kind, 2016 to 2025

$7.6Kin total
  • Food and beverage$6,93892%
  • Travel and lodging$6358%

Companies that paid Dr. Lam-Tsai the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Lam-Tsai

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Yvette Lam-Tsai graduated from State University of New York Downstate Medical Center

Dr. Lam-Tsai graduated from State University of New York Downstate Medical Center in 2011.

  1. Medical schoolState University of New York Downstate Medical Center

Source: Dmand AI Professional Profile Data

Sources for Dr. Yvette Lam-Tsai's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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 percentilesDoctors 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 paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Yvette Lam-Tsai

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. Yvette Lam-Tsai's NPI number?

Dr. Yvette Lam-Tsai's NPI number is 1518147701. It was assigned on November 6, 2007, and it is active in the NPI Registry.

What kind of doctor is Dr. Yvette Lam-Tsai?

Dr. Yvette Lam-Tsai is a gastroenterologist in Sun City, Arizona. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).

Where does Dr. Yvette Lam-Tsai practice?

Dr. Lam-Tsai practices at 13640 North 99th Avenue, Suite 700, Sun City, AZ 85351. Dr. Lam-Tsai's primary practice is Sun City Endoscopy Center in Sun City, Arizona. Dmand AI also links Dr. Lam-Tsai to 1 hospital and 1 group practice or clinic.

What is Dr. Yvette Lam-Tsai's office phone number?

The practice phone on file for Dr. Lam-Tsai is (623) 972-5083.

What is Dr. Yvette Lam-Tsai's medical license number?

Dr. Lam-Tsai holds Arizona license 48670, one of the licenses on file in 2 states.

Which states has Dr. Yvette Lam-Tsai been licensed in?

Dmand AI has state licenses on file for Dr. Lam-Tsai in Arizona and New York.

Which hospitals is Dr. Yvette Lam-Tsai affiliated with?

Dr. Lam-Tsai is affiliated with Banner Boswell Medical Center. Dmand AI links Dr. Lam-Tsai to 1 more hospital.

What medical group is Dr. Yvette Lam-Tsai part of?

Dr. Lam-Tsai is linked to Arizona Digestive Health.

Does Dr. Yvette Lam-Tsai accept Medicare?

Yes. CMS data shows Dr. Lam-Tsai billed Medicare for 1,510 services in 2024, and Dr. Lam-Tsai accepts Medicare assignment.

Does Dr. Yvette Lam-Tsai offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Lam-Tsai as offering telehealth services.

Show 7 more questionsShow fewer questions

What is Dr. Yvette Lam-Tsai's MIPS score?

Dr. Lam-Tsai's MIPS final score for performance year 2024 is 82 out of 100, reported as part of a group.

How many Medicare patients does Dr. Yvette Lam-Tsai see?

CMS counts 678 Medicare patients who saw Dr. Lam-Tsai in 2024, with an average age of 74.

What services does Dr. Yvette Lam-Tsai bill to Medicare?

In 2024, Dr. Lam-Tsai's most billed Medicare services were medicare service (G2211), office visit, established patient (99214) and office visit, established patient (99213).

Where did Dr. Yvette Lam-Tsai go to medical school?

Dr. Lam-Tsai graduated from State University of New York Downstate Medical Center in 2011.

What drugs does Dr. Yvette Lam-Tsai prescribe most?

In 2024 Medicare Part D data, Dr. Lam-Tsai's most prescribed drugs by claims were Pantoprazole Sodium, Omeprazole and Dicyclomine HCl.

Has Dr. Yvette Lam-Tsai received payments from drug or device companies?

CMS Open Payments shows $7,573 in general payments to Dr. Lam-Tsai from 39 companies from 2016 to 2025. The largest total came from Abbvie Inc.

How long has Dr. Yvette Lam-Tsai been practicing?

Dr. Lam-Tsai graduated from medical school in 2011, 15 years ago.

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