NPPES file of Aug 9, 2026

Alexander Yu, MD

Internal Medicine Physician · Redwood City, CA

Alexander Yu, MD is an internal medicine physician with a practice address in Redwood City, California, and NPI 1144554098, issued on Sep 24, 2009. Check the license (California A108969, 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1144554098
Name
Alexander Yu
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
A108969 CA
Self-reported in NPPES; status is on the state search
Practice location
1150 Veterans Blvd, Redwood City, CA 94063
Phone
(650) 299-3671
Enumerated
Sep 24, 2009
Record last updated
Feb 11, 2022
Medicare enrollment
Enrolled (PECOS I20110128000202); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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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8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →

Also registered at 1150 Veterans Blvd

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

  1. James Ahn, MDEmergency Medicine Physician1528146180
  2. Pavlina Apte, M.D.Internal Medicine Physician1386785806
  3. Wilma Arguelles-Gaviola, MDInternal Medicine Physician1740368398
  4. Anil Assudani, M.D,Psychiatry Physician1497753909
  5. Everett Austin, MDNeurology Physician1083792642
  6. Lauren Bacon, DPTPhysical Therapist1295167583

Verify Alexander Yu in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A108969    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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Bills Medicare through one group practice

  1. Permanente Medical Group IncRedwood City, CA

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

Alexander Yu among 17,696 internal medicine physician records in California

Alexander Yu, MD 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 2009, is newer than 60% of them.

  • NPI issued2009 · 60% of these records are older, 37% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated2007 · median 2004 among the 11,065 with a school on file
  • Record last updated2022 · 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).

85 internal medicine physician records list a practice address in Redwood City

They are 85 of the 2,795 NPPES records with a practice address in Redwood City, and 17,696 internal medicine physician records in California.

All 17,696 in California → Every provider in Redwood City → Internal Medicine Physician nationwide →

The 8 internal medicine physician records with the nearest ZIP codes

  1. Sona Aggarwal, MDRedwood City, CA 940631417065228
  2. Wilma Arguelles-Gaviola, MDRedwood City, CA 940631740368398
  3. Srinivasa Ashokkumar, M.DRedwood City, CA 940631134126329
  4. Henry Brodkin, MDRedwood City, CA 940631770661324
  5. Betty Ho, MDRedwood City, CA 940631922186568
  6. Khorshed Madan, M.D.Redwood City, CA 940631366464356
  7. Alison Pachynski, MD MPHRedwood City, CA 940631013090810
  8. Marie President, M.DRedwood City, CA 940631083621379

Common questions

What is Alexander Yu, MD's NPI number?

Alexander Yu, MD's National Provider Identifier (NPI) is 1144554098, issued on Sep 24, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Alexander Yu, MD located?

The NPPES record lists a practice address at 1150 Veterans Blvd, Redwood City, CA, 94063. Phone: (650) 299-3671. Providers update this record themselves, so call before visiting.

How can I verify Alexander Yu, MD's license?

NPPES lists California license number A108969, 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.

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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.