Barbara Eva Liu, D.O
Family Medicine Physician · Walnut Creek, CA
Barbara Eva Liu, D.O is a family medicine physician with a practice address in Walnut Creek, California, and NPI 1669811055, issued on Jun 18, 2013. Check the license (California 20A14674, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Barbara Eva Liu
- Credential
- D.O
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- 20A14674 CA
R2271 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 320 Lennon LN, Walnut Creek, CA 94598
- Phone
- (925) 906-2000
- Enumerated
- Jun 18, 2013
- Record last updated
- Aug 9, 2024
- Medicare enrollment
- Enrolled (PECOS I20161026001669); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 320 Lennon LN
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Joel Acab, MDInternal Medicine Physician1518405661
- Vitas Alekna, MDOphthalmology Physician1770661860
- Mary Andre, P.T.Physical Therapist1740344779
- Lynn Arsenault, MDPediatrics Physician1972681054
- Ashley Batchelder, DPTPhysical Therapist1851450936
- Cynthia Bellitt, R.N.N.P.Women's Health Nurse Practitioner1851464630
Verify Barbara Eva Liu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A14674Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
18% fewer Medicare Part D claims than the average family medicine physician in 2024
2,895 Medicare Part D claims for 529 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 47 claims were for opioids.
Most prescribed
- Atorvastatin Calcium207 claims
- Levothyroxine Sodium169 claims
- Lisinopril129 claims
- Amlodipine Besylate128 claims
- Losartan Potassium116 claims
- Albuterol Sulfate Hfa87 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
- Permanente Medical Group IncOakland, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Barbara Eva Liu among 17,133 family medicine physician records in California
Barbara Eva 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 2013, is newer than 68% of them.
- NPI issued2013 · 68% of these records are older, 29% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2013 · median 2005 among the 10,652 with a school on file
- Record last updated2024 · 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).
116 family medicine physician records list a practice address in Walnut Creek
They are 116 of the 6,170 NPPES records with a practice address in Walnut Creek, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Walnut Creek → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Taejoon Ahn, M.D.Walnut Creek, CA 945981639198757
- Leatrice Chang, MDWalnut Creek, CA 945981700822053
- John Crockett, M.D.Walnut Creek, CA 945981134221021
- Dennis Fong, M.D.Walnut Creek, CA 945981356364871
- Paul Kim, M.D.Walnut Creek, CA 945981609831163
- Pavani Kuruma, MDWalnut Creek, CA 945981285601310
- Franklin Long, MD MPHTMWalnut Creek, CA 945981194744045
- Timmothy Merrigan, M.D.Walnut Creek, CA 945981063442945
Common questions
What is Barbara Eva Liu, D.O's NPI number?
Barbara Eva Liu, D.O's National Provider Identifier (NPI) is 1669811055, issued on Jun 18, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Barbara Eva Liu, D.O located?
The NPPES record lists a practice address at 320 Lennon LN, Walnut Creek, CA, 94598. Phone: (925) 906-2000. Providers update this record themselves, so call before visiting.
How can I verify Barbara Eva Liu, D.O's license?
NPPES lists California license number 20A14674, 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 Barbara Eva Liu, D.O prescribe under Medicare Part D?
In 2024, Barbara Eva Liu, D.O had 2,895 Medicare Part D claims for 529 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.