NPPES file of Aug 9, 2026

James Liao, D.O.

Family Medicine Physician · Palo Alto, CA

James Liao, D.O. is a family medicine physician with a practice address in Palo Alto, California, and NPI 1215383583, issued on May 5, 2016. Check the license (California 20A15977, 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
1215383583
Name
James Liao
Credential
D.O.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
20A15977 CA
Self-reported in NPPES; status is on the state search
Practice location
795 EL Camino Real, Palo Alto, CA 94301
Phone
(650) 853-2958
Enumerated
May 5, 2016
Record last updated
Jun 3, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20191024000413); 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 795 EL Camino Real

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

  1. Hamza AbbasiInternal Medicine Physician1821545484
  2. Arman Abdalkhani, MDOtolaryngology Physician1356536130
  3. Sara AbrahamsInternal Medicine Physician1952988354
  4. Nana Efua Adabie, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1437647732
  5. Amy Adams, M.D.Dermatology Physician1679643928
  6. William Adams, DPMFoot & Ankle Surgery Podiatrist1447487830

Verify James 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 20A15977
    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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95% fewer Medicare Part D claims than the average family medicine physician in 2024

162 Medicare Part D claims for 110 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.

  1. James Liao162
  2. Specialty average3,544

Most prescribed

  1. Amoxicillin-Clavulanate Potass18 claims
  2. Cephalexin16 claims
  3. Paxlovid12 claims
  4. Lidocaine Hcl Viscous11 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. Sutter Bay Medical FoundationLos Altos, CA

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

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

James 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 2016, is newer than 76% of them.

  • NPI issued2016 · 76% of these records are older, 21% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated2016 · median 2005 among the 10,652 with a school on file
  • Record last updated2020 · 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).

85 family medicine physician records list a practice address in Palo Alto

They are 85 of the 7,617 NPPES records with a practice address in Palo Alto, and 17,133 family medicine physician records in California.

The 8 family medicine physician records with the nearest ZIP codes

  1. Eileen Byrne, MDPalo Alto, CA 943011124030341
  2. Manjushree Deshpande, M.D.Palo Alto, CA 943011588621668
  3. Jennifer Falk, MDPalo Alto, CA 943011245203116
  4. Elizabeth Finigan, MDPalo Alto, CA 943011780610048
  5. Steven Hansen, M.D.Palo Alto, CA 943011912910076
  6. Mary Hufty, M.D.Palo Alto, CA 943011053324145
  7. Steve Lane, MDPalo Alto, CA 943011831178250
  8. Richard Lee, MDPalo Alto, CA 943011285625236

Common questions

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

James Liao, D.O.'s National Provider Identifier (NPI) is 1215383583, issued on May 5, 2016. An NPI identifies a provider in billing; it is not a license.

Where is James Liao, D.O. located?

The NPPES record lists a practice address at 795 EL Camino Real, Palo Alto, CA, 94301. Phone: (650) 853-2958. Providers update this record themselves, so call before visiting.

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

NPPES lists California license number 20A15977, 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 James Liao, D.O. prescribe under Medicare Part D?

In 2024, James Liao, D.O. had 162 Medicare Part D claims for 110 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.