NPPES file of Aug 9, 2026

Lawrence Tsai, PA-C

Medical Physician Assistant · La Palma, CA

Lawrence Tsai, PA-C is a medical physician assistant with a practice address in La Palma, California, and NPI 1316247661, issued on Nov 2, 2010. Check the license (California PA21018, as entered in NPPES) with the California board that licenses this profession; 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
1316247661
Name
Lawrence Tsai
Credential
PA-C
Primary taxonomy
Medical Physician Assistant 363AM0700X
License number
PA21018 CA
Self-reported in NPPES; status is on the state search
Practice location
7872 Walker St, La Palma, CA 90623
Phone
(714) 527-8777
Enumerated
Nov 2, 2010
Record last updated
Jul 7, 2016 (not updated in 10 years: call before relying on the address or phone)
Fax
(714) 527-8990
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 7872 Walker St

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

  1. Maggie HagaClinical Social Worker1427178367
  2. Joseph Hahn, D.D.SProsthodontics1366846610
  3. Jamie Hainlen, NPNurse Practitioner1730724741
  4. Judy Helbon, LCSWClinical Social Worker1942366513
  5. Chao Hung Kao, MSW, RN, FNP-CNurse Practitioner1629303698
  6. Caleb KilMedical Physician Assistant1699319848

Verify Lawrence Tsai in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license PA21018
    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
Find the California license search

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3.7 times the Medicare Part D claims of the average medical physician assistant in 2024

4,259 Medicare Part D claims for 442 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D. Brand-name drugs were 23% of claims. 152 claims were for opioids.

  1. Lawrence Tsai4,259
  2. Specialty average1,148

Most prescribed

  1. Atorvastatin Calcium208 claims
  2. Rosuvastatin Calcium181 claims
  3. Amlodipine Besylate119 claims
  4. Omeprazole111 claims
  5. Hydrocodone-Acetaminophen106 claims
  6. Tamsulosin Hcl105 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: $2,185.29

71 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 16,165 providers of this specialty with any payment received $1,055.00 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Lawrence Tsai$2,185.29
  2. Specialty average$1,055.00

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

Lawrence Tsai among 3,376 medical physician assistant records in California

Lawrence Tsai, PA-C is one of 3,376 medical physician assistant records with a practice address in California. 69% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 42% of them.

  • NPI issued2010 · 42% of these records are older, 54% newer
  • In a Medicare fileYes · 69% of these records are
  • In the CMS Doctors and Clinicians fileNo · 40% of these records are
  • Record last updated2016 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363AM0700X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

4 medical physician assistant records list a practice address in La Palma

They are 4 of the 593 NPPES records with a practice address in La Palma, and 3,376 medical physician assistant records in California.

The 8 medical physician assistant records with the nearest ZIP codes

  1. Ruey Chang, P.A.La Palma, CA 906231699064006
  2. Caleb KilLa Palma, CA 906231699319848
  3. Juliana Wilson, PA-CLa Palma, CA 906231851587919
  4. Min Joo Kim, PA-C, MPHBuena Park, CA 906211811543143
  5. Sokan Hunro, PABuena Park, CA 906201518014398
  6. Danielle Wells, PA-CCypress, CA 906301750466181
  7. Ronald Baumgartner, P.A.La Habra, CA 906311104835404
  8. Delia Ramirez, PALa Habra, CA 906311841503752

Common questions

What is Lawrence Tsai, PA-C's NPI number?

Lawrence Tsai, PA-C's National Provider Identifier (NPI) is 1316247661, issued on Nov 2, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Lawrence Tsai, PA-C located?

The NPPES record lists a practice address at 7872 Walker St, La Palma, CA, 90623. Phone: (714) 527-8777. Providers update this record themselves, so call before visiting.

How can I verify Lawrence Tsai, PA-C's license?

NPPES lists California license number PA21018, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Lawrence Tsai, PA-C prescribe under Medicare Part D?

In 2024, Lawrence Tsai, PA-C had 4,259 Medicare Part D claims for 442 beneficiaries; the average among medical physician assistant prescribers was 1,148. 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.