Winston Lai

  • Whittier, CA
  • Family medicine physician
NPI1902394596PAC ID9133527179
Medicare services, 2024
39
Medicare patients, 2024
26
Part D claims, 2024
659
MIPS score, 2024
79
Hospital affiliations
1
Practice address
12522 E Lambert Rd, Whittier, CA 90606
Practice phone
Call (562) 789-5420
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

PIH Health Physicians

Whittier, California

See all 3 affiliations

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Winston Lai is a family medicine physician in Whittier, California

Winston Lai practices at PIH Health Physicians in Whittier, California.

Winston Lai's NPI, 1902394596, was assigned on April 29, 2018. Winston Lai graduated from WesternU College of Osteopathic Medicine of the Pacific in 2018. Winston Lai holds California license 20A17853.

NPI and contact details
Medicare PAC ID
9133527179
NPI enumeration date
April 29, 2018
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(562) 789-5420
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
34
Medical school graduation
2018

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

Winston Lai practices at PIH Health Physicians in Whittier, California

Winston Lai's primary practice is PIH Health Physicians, at 12522 E Lambert Rd, Whittier, CA 90606 in Los Angeles County. The practice phone is (562) 789-5420.

  • PIH Health Physicians
    12522 E Lambert Rd, Whittier, CA 90606 · Los Angeles CountyPhone(562) 789-5420

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Winston Lai is affiliated with 2 sites of care and 1 medical group

Winston Lai's primary practice is PIH Health Physicians in Whittier, California. Winston Lai is also affiliated with PIH Health Good Samaritan Hospital. The medical group on file is PIH Health Physicians.

See all 3 affiliations for Winston Lai

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 Winston Lai's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Winston Lai practices. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
PIH Health PhysiciansAvailable with a free account
+1 more affiliated siteAvailable with a free account

Source: Dmand AI Technology Install Data

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Winston Lai is one of 15,680 family medicine physicians in California

Family medicine is Winston Lai's primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Winston Lai is board certified in family medicine by the American Board of Family Medicine. Winston Lai is licensed in California.

Specialties and state licenses

  • Family medicine, CaliforniaPrimaryLicense 20A17853 · 2019 to 2027 · taxonomy 207Q00000X

Clinical focus

Dmand AI lists acute skin infection, bladder disease, bronchitis, chronic diabetes, chronic hypertension, chronic kidney disease, conjunctivitis and contact dermatitis among the conditions Winston Lai treats.

Family medicine physicians near Winston Lai

Counts of family medicine physicians 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

Winston Lai billed Medicare for 39 services in 2024

CMS data shows 39 Medicare services from Winston Lai across 1 procedure code in 2024, all of them office visits, for 26 Medicare patients. Medicare paid $3,771 for them. Every service was in an office.

Medicare services, 202439
Medicare patients26
Paid by Medicare$3,771
Procedure codes1

Winston Lai's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 622024: 3937%

Winston Lai compared with the California median for family medicine physicians, 2024

  • Winston Lai
  • California median
Medicare services
39vs 24684% below
Medicare patients
26vs 11878% below
Part D claims
292vs 83365% below

Medians across 15,349 family medicine physicians in California with Dmand AI profiles that report each measure.

Winston Lai'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 Winston Lai

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

Winston Lai treated 26 Medicare patients in 2024, average age 73

CMS counts 26 Medicare patients who saw Winston Lai in 2024. The largest group is 65 to 74, with 13 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 1.72, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Winston Lai's median patient age at 46, with 56% women.

Medicare patients, 202426
Average age73
Average risk score1.72

Winston Lai's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Chronic conditions among Winston Lai's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Diabetes62%

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

Winston Lai's patients across all payers

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

Patient panel by age, all payers

Median age 46

Patient panel by sex, all payers

  • Women56%
  • Men44%

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

Winston Lai wrote 659 Medicare Part D claims in 2024

In 2024, Winston Lai wrote 659 Medicare Part D claims for 43 patients. 88% of them were for generic drugs. CMS names the drug for 292 of them, across 16 drugs with 11 or more claims each, at $2,307 in total drug cost. In 2023, CMS named 117 claims across 6 drugs.

Part D claims, 2024659
Drugs named by CMS16
Total drug cost$2,307
Part D patients43

Winston Lai's Part D claims by kind of drug, 2024

  • Generic581 claims88%
  • Brand-name63 claims10%
  • Other15 claims2%

Winston Lai'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 Winston Lai's Part D claims, 2024

  • Opioids3%21 of 659 claims
  • Antibiotics5%31 of 659 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: 1172024: 292150%

Drugs named by CMS: 16 in 2024, 6 in 2023.

See all prescribing by Winston Lai

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

Winston Lai scored 79 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 79 out of 100 for Winston Lai for performance year 2024, reported as part of a group. Winston Lai accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Winston Lai as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Winston Lai's MIPS scores, performance year 2024

  • 79of 100Final score
  • 58.7of 100Quality
  • 40of 100Improvement Activities
  • 75of 100Cost

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

Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026

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Winston Lai received $94 in industry payments in 2019

CMS Open Payments shows 1 general payment to Winston Lai from 1 drug or device company in 2019. Food and beverage make up the largest share, 100% of the total. Bristol-Myers Squibb Company paid the most, $94.

Companies that paid Winston Lai the most, 2019 to 2019

Share is of all general payments to this clinician.

See all payments to Winston Lai

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

Winston Lai graduated from WesternU College of Osteopathic Medicine of the Pacific

Winston Lai graduated from WesternU College of Osteopathic Medicine of the Pacific in 2018.

  1. Medical schoolWesternU College of Osteopathic Medicine of the Pacific
  2. Board certified in family medicineAmerican Board of Family Medicine

Source: Dmand AI Professional Profile Data

Winston Lai accepts plans from 12 insurance carriers

Winston Lai is in network with 12 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.

  • Aetna
  • Blue Cross Blue Shield of Michigan
  • United Healthcare
  • Elevance
  • HCSC
  • Blue Cross Blue Shield of Massachusetts
  • Regence Health Plans
  • Alliant Health Plans
  • +4 more carriersWith a free account

Plan types Winston Lai accepts, by number of carriers

  1. Medicare7
  2. PPO7
  3. HMO6
  4. EPO4
  5. POS4

Source: Dmand AI Insurance Network Data

Sources for Winston Lai'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 phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network 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 Winston Lai

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Winston Lai's NPI number?

Winston Lai's NPI number is 1902394596. It was assigned on April 29, 2018, and it is active in the NPI Registry.

What does Winston Lai specialize in?

Winston Lai is a family medicine physician in Whittier, California. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).

Where does Winston Lai practice?

Winston Lai practices at 12522 E Lambert Rd, Whittier, CA 90606. Winston Lai's primary practice is PIH Health Physicians in Whittier, California.

What is Winston Lai's office phone number?

The practice phone on file for Winston Lai is (562) 789-5420.

What is Winston Lai's medical license number?

Winston Lai holds California license 20A17853.

Which hospitals is Winston Lai affiliated with?

Winston Lai is affiliated with PIH Health Good Samaritan Hospital.

What medical group is Winston Lai part of?

Winston Lai is linked to PIH Health Physicians.

Does Winston Lai accept Medicare?

Yes. CMS data shows Winston Lai billed Medicare for 39 services in 2024, and Winston Lai accepts Medicare assignment.

Does Winston Lai offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Winston Lai as offering telehealth services.

What is Winston Lai's MIPS score?

Winston Lai's MIPS final score for performance year 2024 is 79 out of 100, reported as part of a group.

Show 8 more questionsShow fewer questions

How many Medicare patients does Winston Lai see?

CMS counts 26 Medicare patients who saw Winston Lai in 2024, with an average age of 73.

Is Winston Lai board certified?

Yes. Winston Lai is board certified in family medicine by the American Board of Family Medicine.

What services does Winston Lai bill to Medicare?

In 2024, Winston Lai's most billed Medicare services were office visit, established patient (99214).

Where did Winston Lai go to medical school?

Winston Lai graduated from WesternU College of Osteopathic Medicine of the Pacific in 2018.

What drugs does Winston Lai prescribe most?

In 2024 Medicare Part D data, Winston Lai's most prescribed drugs by claims were Metformin HCl, Amlodipine Besylate and Hydrochlorothiazide.

Has Winston Lai received payments from drug or device companies?

CMS Open Payments shows $94 in general payments to Winston Lai from 1 company from 2019 to 2019. The largest total came from Bristol-Myers Squibb Company.

How long has Winston Lai been practicing?

Winston Lai graduated from medical school in 2018, 8 years ago.

What insurance does Winston Lai accept?

Winston Lai is in network with 12 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.

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