NPPES file of Aug 9, 2026

Paul Hsieh, MD

Anatomic Pathology & Clinical Pathology Physician · Los Angeles, CA

Paul Hsieh, MD is an anatomic pathology & clinical pathology physician with a practice address in Los Angeles, California, and NPI 1073575569, issued on Apr 3, 2006. Check the license (California A24440, 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
1073575569
Name
Paul Hsieh
Credential
MD
Primary taxonomy
Anatomic Pathology & Clinical Pathology Physician 207ZP0102X
License number
A24440 CA
Self-reported in NPPES; status is on the state search
Practice location
2131 W 3RD St, Los Angeles, CA 90057
Phone
(213) 484-7935
Enumerated
Apr 3, 2006
Record last updated
Sep 11, 2025
Medicaid ID
00A244400 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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Also registered at 2131 W 3RD St

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

  1. Hany Basta, M.D.Anesthesiology Physician1396761342
  2. Alexander CambaOccupational Therapist1225554231
  3. Fortino Castaneda, M.D.Diagnostic Radiology Physician1568414175
  4. Su-Fen ChenPharmacotherapy Pharmacist1639556723
  5. Heidi CheungOccupational Therapist1861886517
  6. Albert ChoPharmacist1386112761

Verify Paul Hsieh in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A24440
    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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Industry payments in 2024: $155.84

3 payments; by number, the most common kind was food and beverage; the largest payer was Boehringer Ingelheim Pharmaceuticals, Inc. The 2,607 providers of this specialty with any payment received $3,565.00 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Paul Hsieh$155.84
  2. Specialty average$3,565.00

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

Anatomic Pathology & Clinical Pathology Physician providers in California

There are 1,554 anatomic pathology & clinical pathology physician records in California.

Other anatomic pathology & clinical pathology physician records in California

  1. Sophie Aalaei, M.D.San Diego, CA1558454207
  2. Abdul Majeed Abid, MBBS, MDClovis, CA1578055414
  3. Ronnie Abraham, MDSan Luis Obispo, CA1124254933
  4. Joline Abrahams, M.D.Palm Springs, CA1679567366
  5. Guillermo Acero, MDOjai, CA1629144373
  6. Dennis Adams, M.D.Stanford, CA1053726182
  7. Alaa Afify, M.D.Sacramento, CA1245212950
  8. Ali Afsari, M.D.Orange, CA1275064362
  9. Mukesh AgarwalColton, CA1154901056
  10. Maryam Aghighi, MDSanta Rosa, CA1073074977

Common questions

What is Paul Hsieh, MD's NPI number?

Paul Hsieh, MD's National Provider Identifier (NPI) is 1073575569, issued on Apr 3, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Paul Hsieh, MD located?

The NPPES record lists a practice address at 2131 W 3RD St, Los Angeles, CA, 90057. Phone: (213) 484-7935. Providers update this record themselves, so call before visiting.

How can I verify Paul Hsieh, MD's license?

NPPES lists California license number A24440, 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.

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.