NPPES file of Aug 9, 2026

Peter Yizhi Lai

Internal Medicine Physician · Mountain View, CA

Peter Yizhi Lai is an internal medicine physician with a practice address in Mountain View, California, and NPI 1346878501, issued on Mar 31, 2020. Check the license (California A182702, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1346878501
Name
Peter Yizhi Lai
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
A182702 CA
Self-reported in NPPES; status is on the state search
Practice location
2500 Grant RD, Mountain View, CA 94040
Phone
(650) 940-7000
Enumerated
Mar 31, 2020
Record last updated
Jun 23, 2023
Medicare enrollment
Enrolled (PECOS I20231006002368); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 2500 Grant RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Yolande AbotchiMedical-Surgical Registered Nurse1306733902
  2. Mohanad AlazzehEmergency Medicine Physician1285253799
  3. Clarence Allegakoen, M.D.Internal Medicine Physician1205909637
  4. Katrina BarnettEmergency Medicine Physician1952314510
  5. Victoria Bartret, M.D.Emergency Medicine Physician1508200890
  6. Philippe Begin, M.D.Allergy & Immunology Physician1386065902

Verify Peter Yizhi Lai in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A182702
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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91% fewer Medicare Part D claims than the average internal medicine physician in 2024

270 Medicare Part D claims for 113 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 14 claims were for opioids.

  1. Peter Lai270
  2. Specialty average3,176

Most prescribed

  1. Pantoprazole Sodium21 claims
  2. Cephalexin15 claims
  3. Amoxicillin-Clavulanate Potass13 claims
  4. Furosemide12 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $95.78

1 payment: food and beverage; the largest payer was BeiGene USA, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Peter Lai$95.78
  2. Specialty average$1,303.06

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Quantum Bay Area Hospitalist Medical Group IncMountain View, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Peter Yizhi Lai among 17,696 internal medicine physician records in California

Peter Yizhi Lai is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 89% of them.

  • NPI issued2020 · 89% of these records are older, 8% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated2020 · median 2004 among the 11,065 with a school on file
  • Record last updated2023 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

119 internal medicine physician records list a practice address in Mountain View

They are 119 of the 2,467 NPPES records with a practice address in Mountain View, and 17,696 internal medicine physician records in California.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Ravin Agah, M.D.Mountain View, CA 940401528075017
  2. Galina Balon, MDMountain View, CA 940401114932571
  3. Barbara Campbell, M.D.Mountain View, CA 940401679597405
  4. Steven Carlson, MDMountain View, CA 940401902813496
  5. Dean Cummings, MDMountain View, CA 940401265454029
  6. Vivien D'Andrea, MDMountain View, CA 940401760497135
  7. Francis Garrett, MDMountain View, CA 940401295799724
  8. David Kaufman, MDMountain View, CA 940401720013782

Common questions

What is Peter Yizhi Lai's NPI number?

Peter Yizhi Lai's National Provider Identifier (NPI) is 1346878501, issued on Mar 31, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Peter Yizhi Lai located?

The NPPES record lists a practice address at 2500 Grant RD, Mountain View, CA, 94040. Phone: (650) 940-7000. Providers update this record themselves, so call before visiting.

How can I verify Peter Yizhi Lai's license?

NPPES lists California license number A182702, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Peter Yizhi Lai prescribe under Medicare Part D?

In 2024, Peter Yizhi Lai had 270 Medicare Part D claims for 113 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.