NPPES file of Aug 9, 2026

Hsiu-Wei Lin, MD

Critical Care Medicine (Internal Medicine) Physician · Walnut Creek, CA

Hsiu-Wei Lin, MD is a critical care medicine (internal medicine) physician with a practice address in Walnut Creek, California, and NPI 1427136514, issued on Nov 2, 2006. Check the license (California A44619, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.

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

NPPES recordNPPES file of Aug 9, 2026
1427136514
Name
Hsiu-Wei Lin
Credential
MD
Primary taxonomy
Critical Care Medicine (Internal Medicine) Physician 207RC0200X
License number
A44619 CA
Self-reported in NPPES; status is on the state search
Practice location
1425 S Main St, Walnut Creek, CA 94596
Phone
(925) 295-4000
Enumerated
Nov 2, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Medicaid ID
00A446190 CA
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest critical care medicine (internal medicine) physician records → All 723 in California → Look up another NPI →

Also registered at 1425 S Main St

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

  1. Eric AaserudeEmergency Medicine Physician1811491194
  2. Derek Abbassi, MDObstetrics & Gynecology Physician1841364155
  3. Peter Ackerman, MDEmergency Medicine Physician1427435023
  4. Aaron Mark Acosta, DOEmergency Medicine Physician1538789987
  5. Basil Adad, MDOtolaryngology Physician1487732574
  6. Derek Ailes, M.D.Emergency Medical Services (Emergency Medicine) Physician1992001804

Verify Hsiu-Wei Lin in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A44619    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

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Hsiu-Wei Lin among 723 critical care medicine (internal medicine) physician records in California

Hsiu-Wei Lin, MD is one of 723 critical care medicine (internal medicine) physician records with a practice address in California. 87% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 6% of them.

  • NPI issued2006 · 6% of these records are older, 60% newer
  • In a Medicare fileNo · 87% of these records are
  • In the CMS Doctors and Clinicians fileNo · 77% of these records are
  • Record last updated2007 · 50% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0200X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Critical Care Medicine (Internal Medicine) Physician providers in California

There are 723 critical care medicine (internal medicine) physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 723 in California → Every provider in Walnut Creek → Critical Care Medicine (Internal Medicine) Physician nationwide →

The 8 critical care medicine (internal medicine) physician records with the nearest ZIP codes

  1. Gregory Anderson, MDWalnut Creek, CA 945961063590131
  2. Andrew Chu, M.D.Walnut Creek, CA 945961861816639
  3. Edward Dayoan, MDWalnut Creek, CA 945961386718989
  4. Sai Praveen Haranath, MBBSWalnut Creek, CA 945961053366344
  5. George Lum, MDWalnut Creek, CA 945961629156799
  6. Martin Mazar, MDWalnut Creek, CA 945961962580043
  7. Kuruganti Reddy, MDWalnut Creek, CA 945961952480600
  8. Anne Rogers, MDWalnut Creek, CA 945961306924493

Common questions

What is Hsiu-Wei Lin, MD's NPI number?

Hsiu-Wei Lin, MD's National Provider Identifier (NPI) is 1427136514, issued on Nov 2, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Hsiu-Wei Lin, MD located?

The NPPES record lists a practice address at 1425 S Main St, Walnut Creek, CA, 94596. Phone: (925) 295-4000. Providers update this record themselves, so call before visiting.

How can I verify Hsiu-Wei Lin, MD's license?

NPPES lists California license number A44619, 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. 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.