Anna C. Liu, D.O.
Family Medicine Physician · Fountain Valley, CA
Anna C. Liu, D.O. is a family medicine physician with a practice address in Fountain Valley, California, and NPI 1417143991, issued on Sep 19, 2007. Check the license (California 20A10116, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Anna C. Liu
- Credential
- D.O.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 20A10116 CA
Self-reported in NPPES; status is on the state search - Practice location
- 11100 Warner Ave, Fountain Valley, CA 92708
- Phone
- (714) 966-1500
- Enumerated
- Sep 19, 2007
- Record last updated
- Jul 5, 2009 (not updated in 17 years: call before relying on the address or phone)
- Fax
- (714) 966-2300
- Medicare enrollment
- Enrolled (PECOS I20071128000308); accepts Medicare assignment
- Medical or professional school
- At Still University Of Health Sciences, College Of Osteo Med, Kirksville, 2000
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 11100 Warner Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Anna C. Liu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A10116Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
6% fewer Medicare Part D claims than the average family medicine physician in 2024
3,330 Medicare Part D claims for 198 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 49 claims were for opioids.
Most prescribed
- Atorvastatin Calcium311 claims
- Amlodipine Besylate182 claims
- Metformin Hcl129 claims
- Lisinopril109 claims
- Losartan Potassium88 claims
- Alendronate Sodium85 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: $260.89
12 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. 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.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Friends OF Family Health CenterTustin, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Anna C. Liu among 17,133 family medicine physician records in California
Anna C. 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 2007, is newer than 41% of them.
- NPI issued2007 · 41% of these records are older, 47% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2000 · median 2005 among the 10,652 with a school on file
- Record last updated2009 · 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).
51 family medicine physician records list a practice address in Fountain Valley
They are 51 of the 2,190 NPPES records with a practice address in Fountain Valley, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Fountain Valley → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Arfa Babaknia, M.D.Fountain Valley, CA 927081205826849
- Hung-Chuan Cheng, M.D.Fountain Valley, CA 927081053389023
- Brian Coyne, M.D.Fountain Valley, CA 927081457306334
- Nasrin Damoui, MDFountain Valley, CA 927081841295326
- Robert Devereaux, MDFountain Valley, CA 927081043264781
- David Dunckel, MDFountain Valley, CA 927081518957794
- Edgar Fernandez, DOFountain Valley, CA 927081033157235
- Jo Lieberman Pan, MDFountain Valley, CA 927081598756090
Common questions
What is Anna C. Liu, D.O.'s NPI number?
Anna C. Liu, D.O.'s National Provider Identifier (NPI) is 1417143991, issued on Sep 19, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Anna C. Liu, D.O. located?
The NPPES record lists a practice address at 11100 Warner Ave, Fountain Valley, CA, 92708. Phone: (714) 966-1500. Providers update this record themselves, so call before visiting.
How can I verify Anna C. Liu, D.O.'s license?
NPPES lists California license number 20A10116, 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 Anna C. Liu, D.O. prescribe under Medicare Part D?
In 2024, Anna C. Liu, D.O. had 3,330 Medicare Part D claims for 198 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.