NPPES file of Aug 9, 2026

Kevin Liao, D.O.

Family Medicine Physician · Brea, CA

Kevin Liao, D.O. is a family medicine physician with a practice address in Brea, California, and NPI 1811148620, issued on Oct 10, 2008. Check the license (California 20A10734, 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
1811148620
Name
Kevin Liao
Credential
D.O.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
20A10734 CA
Self-reported in NPPES; status is on the state search
Practice location
1900 E Lambert RD, Brea, CA 92821
Phone
(949) 328-6421
Enumerated
Oct 10, 2008
Record last updated
Nov 18, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20160215000936); accepts Medicare assignment
Medical or professional school
Western Eclectic College Of Medicine And Surgery, 2007
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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Also registered at 1900 E Lambert RD

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

  1. Garn Chanjamsri, PHARMDPharmacist1730628462
  2. Steven ChenAmbulatory Care Pharmacist1154081214
  3. Ellen Ji, DOFamily Medicine Physician1417418229
  4. Sophia Lim, M.D.Student in an Organized Health Care Education/Training Program1962857532
  5. David Liu, M.D.Family Medicine Physician1013072149
  6. Quoc Nguyen, M.D., M.P.HInternal Medicine Physician1043240450

Verify Kevin Liao in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 20A10734
    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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2.1 times the Medicare Part D claims of the average family medicine physician in 2024

7,325 Medicare Part D claims for 1,201 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 235 claims were for opioids.

  1. Kevin Liao7,325
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium591 claims
  2. Amlodipine Besylate318 claims
  3. Losartan Potassium302 claims
  4. Lisinopril259 claims
  5. Metformin Hcl177 claims
  6. Rosuvastatin Calcium175 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.

Bills Medicare through one group practice

  1. Southern California Permanente Medical GroupAnaheim, CA

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

Kevin Liao among 17,133 family medicine physician records in California

Kevin Liao, D.O. is one of 17,133 family medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 53% of them.

  • NPI issued2008 · 53% of these records are older, 42% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated2007 · median 2005 among the 10,652 with a school on file
  • Record last updated2021 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

48 family medicine physician records list a practice address in Brea

They are 48 of the 1,052 NPPES records with a practice address in Brea, and 17,133 family medicine physician records in California.

The 8 family medicine physician records with the nearest ZIP codes

  1. Alexandra Duke, D.OBrea, CA 928211760479992
  2. Anne Ford, MDBrea, CA 928211518967140
  3. Mark Giglio, MDBrea, CA 928211134129182
  4. Royce Hutain, M.D.Brea, CA 928211104894286
  5. Christian Lising, M.D.Brea, CA 928211760478606
  6. Marlene Mires, MDBrea, CA 928211235185976
  7. John Mitchell, M.D.Brea, CA 928211225024912
  8. Andrew Morrison, MDBrea, CA 928211750382628

Common questions

What is Kevin Liao, D.O.'s NPI number?

Kevin Liao, D.O.'s National Provider Identifier (NPI) is 1811148620, issued on Oct 10, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Kevin Liao, D.O. located?

The NPPES record lists a practice address at 1900 E Lambert RD, Brea, CA, 92821. Phone: (949) 328-6421. Providers update this record themselves, so call before visiting.

How can I verify Kevin Liao, D.O.'s license?

NPPES lists California license number 20A10734, 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.

How much does Kevin Liao, D.O. prescribe under Medicare Part D?

In 2024, Kevin Liao, D.O. had 7,325 Medicare Part D claims for 1,201 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.