Dr. Yu Kuang Lai , MD
Internal Medicine - Critical Care Medicine โข Stanford, CA
300 Pasteur Dr
Stanford, CA 943052200
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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Dr. Yu Kuang Lai is listed in NPPES under Internal Medicine - Critical Care Medicine.
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NPI assigned on June 26, 2010; this date does not establish years in practice.
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Published CMS data list 560 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- 99291 โ Critical care: 208 service units.
- 99232 โ Subsequent hospital care with moderate levelof medical decision making: 66 service units.
- 99233 โ Subsequent hospital care with moderate levelof medical decision making: 56 service units.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPTยฎ only copyright 2023 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2024). CPT notice
See all 12 records in the table ยท Guide: How to read Medicare Part B data
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Published CMS data list 385 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Sildenafil Citrate โ 61 prescription fills, including refills.
- Opsumit (Macitentan) โ 58 prescription fills, including refills.
- Trelegy Ellipta (Fluticasone/Umeclidin/Vilanter) โ 34 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 15 records in the table ยท Guide: How to read Medicare Part D prescriber data
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More Medicare Part B services than 70% of clinicians listed under Internal Medicine - Critical Care Medicine in Stanford, CA (2024, 28 clinicians with data). Median for this group: 357. Middle half: 232 to 620.
More Medicare Part B services than 60% of clinicians listed under Internal Medicine - Critical Care Medicine in California (2024, 475 clinicians with data). Median for this group: 432. Middle half: 226 to 795.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 571 in 2020 to 560 in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2020โ2024.
Practice Location & Contact Primary Location
300 Pasteur Dr
Stanford, CA 943052200
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
CMS Doctors and Clinicians lists 1 group name: Stanford Health Care. See the list
Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File
2006
What Public CMS Data Show
Internal Medicine - Critical Care Medicine: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
237 people with Original Medicare in 2024
It gives a sense of how many people with Medicare this clinician treated that year.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider, 2024.
Medicare-allowed amount
About $95,616 in 2024
The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.
It shows the total cost of this clinician's Original Medicare services under Medicare's fee rules.
What this does not show: Medicare-allowed amount
This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024.
Paid by Medicare
About $74,821 in 2024
The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.
The gap between the allowed amount and this number is roughly what patients and their other insurance paid.
What this does not show: Paid by Medicare
This is not the clinician's income and not a measure of quality.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024.
30-day fills
450 standardized 30-day fills in 2024
CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.
What this does not show: 30-day fills
It is not a count of patients and not a measure of quality.
Part D drug cost
$1,964,463 in 2024
The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
What this does not show: Part D drug cost
A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024.
Industry payments (Open Payments)
Fewer than 11 payment records totaling $63.09 in 2019
Drug and medical device companies must report certain payments to doctors and some other clinicians to CMS, such as meals, travel, speaking fees or research funding.
It shows reported financial ties between this clinician and companies. You can ask your clinician about them.
These records are submitted by drug and medical device companies, and a reported payment does not necessarily mean the financial relationship is improper.
General: payments not tied to research, such as meals, travel, consulting or speaking fees.
A reported payment does not necessarily mean the financial relationship is improper. Research payments can go to a hospital or university for a study the clinician leads, not to the clinician personally. Clinicians can dispute records with the company that reported them.
Source: CMS Open Payments, program year 2019.
Years since graduation
20 years (graduated 2006)
CMS Doctors and Clinicians data list 2006 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished school.
What this does not show: Years since graduation
It is not the number of years in practice, and more years does not mean better care.
Source: CMS Doctors and Clinicians National Downloadable File.
NPI first issued
2010
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Accepts Medicare assignment
CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.
With Original Medicare, you usually pay only your deductible and coinsurance, and the office sends the claim to Medicare for you.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, โDoes your provider accept Medicare as full payment?โ
Telehealth (some services)
Recent Medicare claims show this clinician provided some services by telehealth, such as a video or phone visit.
You may be able to have some visits without going to the office. Ask which visits can be done by telehealth.
What this does not show: Telehealth (some services)
It does not mean all services are offered by telehealth, or that telehealth is covered by your plan.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
Dr. Lai has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.
It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Can order Medicare-covered services
CMS lists Dr. Lai as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in Stanford and California
Billing and prescribing volume is not a quality rating.
Medicare Part B services
More Medicare Part B services than 70% of clinicians listed under Internal Medicine - Critical Care Medicine in Stanford, CA (2024, 28 clinicians with data). Median for this group: 357. Middle half: 232 to 620.
More Medicare Part B services than 60% of clinicians listed under Internal Medicine - Critical Care Medicine in California (2024, 475 clinicians with data). Median for this group: 432. Middle half: 226 to 795.
Medicare-allowed amount
A higher Medicare-allowed amount than 85% of clinicians listed under Internal Medicine - Critical Care Medicine in Stanford, CA (2024, 28 clinicians with data). Median for this group: $62,394. Middle half: $33,078 to $79,549.
A higher Medicare-allowed amount than 65% of clinicians listed under Internal Medicine - Critical Care Medicine in California (2024, 475 clinicians with data). Median for this group: $65,554. Middle half: $35,893 to $108,172.
Paid by Medicare
A higher Medicare payment amount than 85% of clinicians listed under Internal Medicine - Critical Care Medicine in Stanford, CA (2024, 28 clinicians with data). Median for this group: $48,791. Middle half: $25,974 to $62,566.
A higher Medicare payment amount than 65% of clinicians listed under Internal Medicine - Critical Care Medicine in California (2024, 475 clinicians with data). Median for this group: $51,902. Middle half: $27,948 to $85,858.
Medicare Part D prescriptions
More Part D prescriptions than 70% of clinicians listed under Internal Medicine - Critical Care Medicine in Stanford, CA (2024, 18 clinicians with data). Median for this group: 118. Middle half: 48 to 405.
Close to the middle for clinicians listed under Internal Medicine - Critical Care Medicine in California (2024, 262 clinicians with data). Median for this group: 296. Middle half: 77 to 783.
Part D drug cost
A higher Part D drug cost than 90% of clinicians listed under Internal Medicine - Critical Care Medicine in Stanford, CA (2024, 18 clinicians with data). Median for this group: $27,016. Middle half: $9,874 to $160,267.
A higher Part D drug cost than 95% of clinicians listed under Internal Medicine - Critical Care Medicine in California (2024, 262 clinicians with data). Median for this group: $110,852. Middle half: $16,142 to $460,088.
42 active clinicians are listed under Internal Medicine - Critical Care Medicine with a practice address in Stanford, CA (723 in California).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Stanford
47.6% of these 42 clinicians have the CMS telehealth indicator.
71.4% of these 42 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part B services
Medicare Part B services stayed about the same: 571 in 2020 and 560 in 2024.
- 2020: 571
- 2021: 611
- 2022: 708
- 2023: 659
- 2024: 560
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Medicare-allowed amount
Medicare-allowed amount increased 49% from $63,988 in 2020 to $95,616 in 2024.
- 2020: $63,988
- 2021: $65,750
- 2022: $90,912
- 2023: $96,046
- 2024: $95,616
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Paid by Medicare
Paid by Medicare increased 46% from $51,238 in 2020 to $74,821 in 2024.
- 2020: $51,238
- 2021: $55,307
- 2022: $72,072
- 2023: $75,052
- 2024: $74,821
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Medicare Part D prescriptions
Medicare Part D prescriptions increased 183% from 136 in 2020 to 385 in 2024.
- 2020: 136
- 2021: 258
- 2022: 321
- 2023: 238
- 2024: 385
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30-day fills
30-day fills increased 189% from 156 in 2020 to 450 in 2024.
- 2020: 156
- 2021: 324
- 2022: 376
- 2023: 281
- 2024: 450
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Part D drug cost
Part D drug cost increased 7873% from $24,638 in 2020 to $1,964,463 in 2024.
- 2020: $24,638
- 2021: $325,478
- 2022: $522,740
- 2023: $849,834
- 2024: $1,964,463
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Industry payments (Open Payments)
CMS data for industry payments (Open Payments) are available for 2019 only.
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2019), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo ยท Report an error.
Pharma & Medical Device Financial Disclosures
Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments
Program year 2019 (payments made January 1 โ December 31, 2019): fewer than 11 records totaling $63.09.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| EMD Serono, Inc. |
Food and Beverage
In-kind items and services
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Mavenclad | General | $63.09 |
Source: CMS Open Payments, program year 2019, released June 30, 2026.
Performed Procedures & Service Volume
CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2018โ2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners โ by Provider and Service data, 2019โ2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.
| HCPCS Code | Services | Patients | Submitted Charge | Medicare Allowed |
|---|---|---|---|---|
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99291
Critical care, first 30-74 minutes
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208 | 83 | $1853.00 | $231.82 |
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99232
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes
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66 | 27 | $276.82 | $88.57 |
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99233
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes
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56 | 25 | $385.30 | $132.96 |
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99214
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
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55 | 34 | $757.64 | $155.12 |
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99214
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
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40 | 31 | $124.50 | $110.29 |
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99215
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more
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25 | 17 | $183.40 | $163.55 |
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99205
New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more
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22 | 22 | $275.00 | $204.40 |
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99222
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes
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22 | 21 | $536.73 | $146.38 |
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99213
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
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20 | 16 | $640.50 | $110.84 |
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99215
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more
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19 | 12 | $951.05 | $216.39 |
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99223
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes
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14 | 12 | $764.57 | $194.04 |
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94618
Test for exercise-induced lung stress
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13 | 13 | $149.00 | $24.04 |
Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits
Submitted charges are billed amounts, not a price quote for your visit.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2024.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Sildenafil Citrate | Sildenafil Citrate | 61 | 1,950 | $8,771.88 | โ |
| Opsumit | Macitentan | 58 | 1,740 | $736,276.96 | โ |
| Trelegy Ellipta | Fluticasone/Umeclidin/Vilanter | 34 | 1,260 | $23,582.43 | โ |
| Breo Ellipta | Fluticasone/Vilanterol | 33 | 990 | $12,720.29 | โ |
| Montelukast Sodium | Montelukast Sodium | 31 | 1,410 | $185.90 | โ |
| Furosemide | Furosemide | 26 | 960 | $172.11 | โ |
| Ambrisentan | Ambrisentan | 25 | 734 | $23,063.40 | โ |
| Eliquis | Apixaban | 18 | 540 | $10,418.76 | โ |
| Uptravi | Selexipag | 18 | 828 | $649,155.07 | โ |
| Prednisone | Prednisone | 17 | 750 | $96.69 | โ |
| Potassium Chloride | Potassium Chloride | 14 | 780 | $415.01 | โ |
| Adempas | Riociguat | 13 | 390 | $205,877.00 | โ |
| Tyvaso Dpi | Treprostinil | 13 | 364 | $292,512.48 | โ |
| Omeprazole | Omeprazole | 12 | 360 | $13.96 | โ |
| Fluticasone-Salmeterol | Fluticasone Propion/Salmeterol | 12 | 360 | $1,200.77 | โ |
Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2024-04-25NUCC Taxonomy Code: 207RC0200X
An internist who diagnoses, treats and supports patients with multiple organ dysfunction. This specialist may have administrative responsibilities for intensive care units and may also facilitate and coordinate patient care among the primary physician, the critical care staff and other specialists.
NUCC Taxonomy Code: 207R00000X
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
NUCC Taxonomy Code: 207R00000X
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
NUCC Taxonomy Code: 207RP1001X
An internist who treats diseases of the lungs and airways. The pulmonologist diagnoses and treats cancer, pneumonia, pleurisy, asthma, occupational and environmental diseases, bronchitis, sleep disorders, emphysema and other complex disorders of the lungs.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - CRITICAL CARE (INTENSIVISTS)
I20191010002561
CA
7416184544
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Medicare Group Practice Enrollments
Source: CMS Doctors and Clinicians National Downloadable File
Stanford Health Care
5555 W Las Positas Blvd, Pleasanton, CA 945884000
Phone: 9258473000
Stanford Health Care
300 Pasteur Dr, Stanford, CA 943052200
Phone: 6507234000
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Radiology - Diagnostic Radiology
Doctor of Medicine (M.D.)
Internal Medicine - Endocrinology, Diabetes & Metabolism
Doctor of Medicine (M.D.)
Dermatology
Doctor of Medicine (M.D.)
Psychiatry & Neurology - Psychiatry
Doctor of Medicine (M.D.)
Psychiatry & Neurology - Psychiatry
Doctor of Medicine (M.D.)
Nurse Practitioner
Nurse Practitioner
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Internal Medicine (license number reported to NPPES: PA MD449923)
Registered at 300 PASTEUR DR, STANFORD, CA 943052200 (Tel: 6507234000)
Registered at 300 PASTEUR DR, STANFORD, CA 943052200 (Tel: 6507234000)
Internal Medicine (license number reported to NPPES: CA A141834)
NPI status registered as active in NPPES database
Registered at 5501 OLD YORK RD, KLEIN BLDG , SUITE 363, PHILADELPHIA, PA 191413018 (Tel: 2154568520)
Registered at PO BOX 8500-8735, PHILADELPHIA, PA 191788735 (Tel: 2154567000)
Recorded as YU KUANG LAI, MD
Internal Medicine (license number reported to NPPES: PA MD449923)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Internal Medicine - Critical Care Medicine Providers in Stanford
- Dr. Roberto Bernardo, MD
- Dr. Krystle Leung, MD
- Dr. Alexandra Gordon, MD
- Dr. Brandon Pang, MD
- Dr. Natalie Htet, MD
- Dr. Andrea Jonas, MD
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Directory navigation, in NPI number order.
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Mailing Address
300 Pasteur Dr
Stanford, CA 943052200
Phone: 6507234000