NPPES file of Aug 9, 2026

Alex Chunhsien Liu, M.D.

Ophthalmology Physician · Torrance, CA

Alex Chunhsien Liu, M.D. is an ophthalmology physician with a practice address in Torrance, California, and NPI 1275553158, issued on Jul 20, 2006. Check the license (California A99742, 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
1275553158
Name
Alex Chunhsien Liu
Credential
M.D.
Primary taxonomy
Ophthalmology Physician 207W00000X
License number
A99742 CA
Self-reported in NPPES; status is on the state search
Practice location
23441 Madison St, Torrance, CA 90505
Phone
(310) 791-2233
Enumerated
Jul 20, 2006
Record last updated
Dec 3, 2012 (not updated in 14 years: call before relying on the address or phone)
Fax
(310) 791-1144
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 ophthalmology physician records → All 2,899 in California → Look up another NPI →

Also registered at 23441 Madison St

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

  1. Mary Carpenter, PTPhysical Therapist1861546723
  2. Debra Clydesdale, L.A.C.Preventive Medicine/Occupational Environmental Medicine Physician1942428115
  3. Bett Eng, M.D.Rheumatology Physician1861408742
  4. Karen Filkins, M.D.Obstetrics & Gynecology Physician1659322469
  5. Richard Goldin, M.D.Rheumatology Physician1124034103
  6. David Klashman, MDRheumatology Physician1265451777

Verify Alex Chunhsien Liu in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A99742    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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Industry payments in 2024: $21.05

1 payment: food and beverage; the largest payer was Revance Therapeutics, Inc. The 13,221 providers of this specialty with any payment received $4,535.02 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Alex Liu$21.05
  2. Specialty average$4,535.02

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

Alex Chunhsien Liu among 2,899 ophthalmology physician records in California

Alex Chunhsien Liu, M.D. is one of 2,899 ophthalmology 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 2006, is newer than 9% of them.

  • NPI issued2006 · 9% of these records are older, 45% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileNo · 66% of these records are
  • Record last updated2012 · 67% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Ophthalmology Physician providers in California

There are 2,899 ophthalmology physician records in California.

All 2,899 in California → Every provider in Torrance → Ophthalmology Physician nationwide →

The 8 ophthalmology physician records with the nearest ZIP codes

  1. Damien Goldberg, M.D.Torrance, CA 905051891833695
  2. Steven Khwarg, MDTorrance, CA 905051316007230
  3. Amr KouchoukTorrance, CA 905051639499718
  4. Angus Macdonald, MDTorrance, CA 905051023164415
  5. John Maher, M.D.Torrance, CA 905051265561211
  6. Alfred Marrone, M.D.Torrance, CA 905051841388907
  7. Lydia Matkovich, M.D.Torrance, CA 905051508801028
  8. Douglas Sakamoto, M.D.Torrance, CA 905051871566554

Common questions

What is Alex Chunhsien Liu, M.D.'s NPI number?

Alex Chunhsien Liu, M.D.'s National Provider Identifier (NPI) is 1275553158, issued on Jul 20, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Alex Chunhsien Liu, M.D. located?

The NPPES record lists a practice address at 23441 Madison St, Torrance, CA, 90505. Phone: (310) 791-2233. Providers update this record themselves, so call before visiting.

How can I verify Alex Chunhsien Liu, M.D.'s license?

NPPES lists California license number A99742, 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.