NPPES file of Aug 9, 2026

Chia-Lin Liu, D.O.

Family Medicine Physician · San Diego, CA

Chia-Lin Liu, D.O. is a family medicine physician with a practice address in San Diego, California, and NPI 1720088552, issued on Jul 22, 2005. Check the license (California 20A6900, 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
1720088552
Name
Chia-Lin Liu
Credential
D.O.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
20A6900 CA
Self-reported in NPPES; status is on the state search
Practice location
2185 Garnet Ave, San Diego, CA 92109
Phone
(858) 270-9270
Enumerated
Jul 22, 2005
Record last updated
Sep 28, 2010 (not updated in 16 years: call before relying on the address or phone)
Fax
(858) 270-7168
Medicare enrollment
Enrolled (PECOS I20040624001429); accepts Medicare assignment
Medical or professional school
College Of Osteo Med Of The Pacific At Pomona, 1995
Telehealth
Offers telehealth (CMS)
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 2185 Garnet Ave

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

  1. Tsai-Chi HuangFamily Nurse Practitioner1619822939
  2. Fengqing Zhu, FNP-CFamily Nurse Practitioner1952099764

Verify Chia-Lin 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 20A6900
    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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63% fewer Medicare Part D claims than the average family medicine physician in 2024

1,303 Medicare Part D claims for 140 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims.

  1. Chia-Lin Liu1,303
  2. Specialty average3,544

Most prescribed

  1. Rosuvastatin Calcium92 claims
  2. Losartan Potassium87 claims
  3. Atorvastatin Calcium62 claims
  4. Alendronate Sodium55 claims
  5. Metformin Hcl53 claims
  6. Levothyroxine Sodium43 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: $1,001.14

24 payments; by number, the most common kind was food and beverage; the largest payer was Pfizer Inc. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Chia-Lin Liu$1,001.14
  2. Specialty average$902.55

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

Chia-Lin Liu among 17,133 family medicine physician records in California

Chia-Lin Liu, 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 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 94% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated1995 · median 2005 among the 10,652 with a school on file
  • Record last updated2010 · 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).

780 family medicine physician records list a practice address in San Diego

They are 780 of the 52,937 NPPES records with a practice address in San Diego, and 17,133 family medicine physician records in California.

The 8 family medicine physician records with the nearest ZIP codes

  1. Kaveh Bahmanpour, MDSan Diego, CA 921091538368014
  2. Ryan Bourgette, MDSan Diego, CA 921091629489257
  3. Mark Brodsky, MDSan Diego, CA 921091346337904
  4. Taram Dabo, M.DSan Diego, CA 921091487763009
  5. Julius Dang, M.D.San Diego, CA 921091700143799
  6. Gary Matson, D.O.San Diego, CA 921091154344695
  7. Monica Melgar, M.D.San Diego, CA 921091629432174
  8. Rylee Scott, M.D.San Diego, CA 921091457887911

Common questions

What is Chia-Lin Liu, D.O.'s NPI number?

Chia-Lin Liu, D.O.'s National Provider Identifier (NPI) is 1720088552, issued on Jul 22, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Chia-Lin Liu, D.O. located?

The NPPES record lists a practice address at 2185 Garnet Ave, San Diego, CA, 92109. Phone: (858) 270-9270. Providers update this record themselves, so call before visiting.

How can I verify Chia-Lin Liu, D.O.'s license?

NPPES lists California license number 20A6900, 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 Chia-Lin Liu, D.O. prescribe under Medicare Part D?

In 2024, Chia-Lin Liu, D.O. had 1,303 Medicare Part D claims for 140 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.