NPPES file of Aug 9, 2026

Benjamin Leo Liu, D.O.

Hospitalist Physician · Fairfield, CA

Benjamin Leo Liu, D.O. is a hospitalist physician with a practice address in Fairfield, California, and NPI 1932544061, issued on May 2, 2013. Check the license (California 20A14527, 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
1932544061
Name
Benjamin Leo Liu
Credential
D.O.
Primary taxonomy
Hospitalist Physician 208M00000X
License number
20A14527 CA
Self-reported in NPPES; status is on the state search
Practice location
1200 B Gale Wilson Blvd, Fairfield, CA 94533
Phone
(707) 626-5000
Enumerated
May 2, 2013
Record last updated
Nov 18, 2016 (not updated in 10 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20160725002597); accepts Medicare assignment
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 1200 B Gale Wilson Blvd

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

  1. Yusuf Ahmad, MDAnesthesiology Physician1104020262
  2. Tashira AlexanderRegistered Dietitian1902732480
  3. Nail Amro, M.D.Internal Medicine Physician1861413551
  4. Allan Au, M.D.Hospitalist Physician1427495563
  5. Erin Berntsen, ACNPAcute Care Nurse Practitioner1205640489
  6. Neeta BhasinCritical Care Pharmacist1457984882

Verify Benjamin Leo 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 20A14527
    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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62% fewer Medicare Part D claims than the average hospitalist physician in 2024

196 Medicare Part D claims for 96 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 11 claims were for opioids.

  1. Benjamin Liu196
  2. Specialty average521

Most prescribed

  1. Prednisone16 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: $24.02

1 payment: food and beverage; the largest payer was Abbott Laboratories. The 7,324 providers of this specialty with any payment received $494.84 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Benjamin Liu$24.02
  2. Specialty average$494.84

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

  1. Northbay Physicians Surgery Center, LLCFairfield, CA

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

Benjamin Leo Liu among 3,099 hospitalist physician records in California

Benjamin Leo Liu, D.O. is one of 3,099 hospitalist physician records with a practice address in California. 90% 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 56% of them.

  • NPI issued2013 · 56% of these records are older, 39% newer
  • In a Medicare fileYes · 90% of these records are
  • In the CMS Doctors and Clinicians fileYes · 81% of these records are
  • Graduated2013 · median 2010 among the 2,505 with a school on file
  • Record last updated2016 · 49% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Hospitalist Physician providers in California

There are 3,099 hospitalist physician records in California.

The 8 hospitalist physician records with the nearest ZIP codes

  1. Allan Au, M.D.Fairfield, CA 945331427495563
  2. Andrea Ngo, MDFairfield, CA 945331699863464
  3. Satinderjit Nijjar, MDFairfield, CA 945331689171183
  4. Pranay Bahuguna, M.D.Fairfield, CA 945341174598932
  5. James Chan, M.D.Antioch, CA 945311033437231
  6. Anirudh Dwarakanath, MDFairfield, CA 945351154956415
  7. Jingping Hao, M.D.Antioch, CA 945311710236898
  8. Ni Mo, D.O.Antioch, CA 945311285175539

Common questions

What is Benjamin Leo Liu, D.O.'s NPI number?

Benjamin Leo Liu, D.O.'s National Provider Identifier (NPI) is 1932544061, issued on May 2, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Benjamin Leo Liu, D.O. located?

The NPPES record lists a practice address at 1200 B Gale Wilson Blvd, Fairfield, CA, 94533. Phone: (707) 626-5000. Providers update this record themselves, so call before visiting.

How can I verify Benjamin Leo Liu, D.O.'s license?

NPPES lists California license number 20A14527, 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 Benjamin Leo Liu, D.O. prescribe under Medicare Part D?

In 2024, Benjamin Leo Liu, D.O. had 196 Medicare Part D claims for 96 beneficiaries; the average among hospitalist physician prescribers was 521. 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.