NPPES file of Aug 9, 2026

Xiang Liao, MD

Internal Medicine Physician · Richmond, CA

Xiang Liao, MD is an internal medicine physician with a practice address in Richmond, California, and NPI 1396820056, issued on Oct 25, 2006. Check the license (California A75401, 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
1396820056
Name
Xiang Liao
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
A75401 CA
Self-reported in NPPES; status is on the state search
Practice location
901 Nevin Ave, Richmond, CA 94801
Phone
(510) 307-1500
Enumerated
Oct 25, 2006
Record last updated
Dec 6, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicaid ID
00A754010 CA
Medicare enrollment
Enrolled (PECOS I20110421000494); accepts Medicare assignment
Medical or professional school
Saint Louis University School Of Medicine, 1999
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 901 Nevin Ave

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

  1. Susana Acevedo, MDPediatrics Physician1801971569
  2. Mankaah AchoPediatrics Physician1225779721
  3. Mary Ackerman, NPAdult Health Nurse Practitioner1154406155
  4. Kian AdabiNeurology Physician1528626710
  5. Samina Agha, MDHospitalist Physician1548345200
  6. Jessica Alfonso, RRTRegistered Respiratory Therapist1295507598

Verify Xiang 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 A75401
    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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24% more Medicare Part D claims than the average internal medicine physician in 2024

3,945 Medicare Part D claims for 512 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 168 claims were for opioids.

  1. Xiang Liao3,945
  2. Specialty average3,176

Most prescribed

  1. Amlodipine Besylate452 claims
  2. Atorvastatin Calcium415 claims
  3. Losartan Potassium177 claims
  4. Lisinopril159 claims
  5. Metformin Hcl119 claims
  6. Gabapentin112 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. Permanente Medical Group IncRichmond, CA

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

Xiang Liao among 17,696 internal medicine physician records in California

Xiang Liao, MD is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 5% of them.

  • NPI issued2006 · 5% of these records are older, 56% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated1999 · median 2004 among the 11,065 with a school on file
  • Record last updated2021 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

31 internal medicine physician records list a practice address in Richmond

They are 31 of the 1,696 NPPES records with a practice address in Richmond, and 17,696 internal medicine physician records in California.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Jane Bonacich, MDRichmond, CA 948011699850362
  2. Vikas Chhabra, M.D.Richmond, CA 948011114930427
  3. Kathy Down, MDRichmond, CA 948011942385604
  4. Mark Geliebter, MDRichmond, CA 948011295810950
  5. Thomas Gourley, MDRichmond, CA 948011679658330
  6. George Jackson, MDRichmond, CA 948011770517666
  7. Brigid McCaw, MDRichmond, CA 948011245315902
  8. Carmela Romano, DORichmond, CA 948011952486615

Common questions

What is Xiang Liao, MD's NPI number?

Xiang Liao, MD's National Provider Identifier (NPI) is 1396820056, issued on Oct 25, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Xiang Liao, MD located?

The NPPES record lists a practice address at 901 Nevin Ave, Richmond, CA, 94801. Phone: (510) 307-1500. Providers update this record themselves, so call before visiting.

How can I verify Xiang Liao, MD's license?

NPPES lists California license number A75401, 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 Xiang Liao, MD prescribe under Medicare Part D?

In 2024, Xiang Liao, MD had 3,945 Medicare Part D claims for 512 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.