NPPES file of Aug 9, 2026

Randy Liang, D.O.

Hospitalist Physician · Mountain View, CA

Randy Liang, D.O. is a hospitalist physician with a practice address in Mountain View, California, and NPI 1346508207, issued on Apr 30, 2012. Check the license (California 20A13232, 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
1346508207
Name
Randy Liang
Credential
D.O.
Primary taxonomy
Hospitalist Physician 208M00000X
License number
20A13232 CA
Self-reported in NPPES; status is on the state search
Practice location
701 E. EL Camino Real, Mountain View, CA 94040
Phone
(650) 934-7000
Enumerated
Apr 30, 2012
Record last updated
Feb 24, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20161109001304); 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 701 E. EL Camino Real

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

  1. Estela Ayala Meyer, M.D.Pulmonary Disease Physician1063608719
  2. Vidya Bhandarkar, MDPediatrics Physician1225179138
  3. Punam Bhullar, M.D.Internal Medicine Physician1245521475
  4. Daniel Chelliah, MDInfectious Disease Physician1174847933
  5. Calvin Chen, MDFamily Medicine Physician1659369544
  6. David Chen, MDNeurology Physician1730155441

Verify Randy Liang in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 20A13232
    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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65% fewer Medicare Part D claims than the average hospitalist physician in 2024

183 Medicare Part D claims for 97 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. 15 claims were for opioids.

  1. Randy Liang183
  2. Specialty average521

Most prescribed

  1. Cephalexin13 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 FoundationSan Jose, CA

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

Randy Liang among 3,099 hospitalist physician records in California

Randy Liang, 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 2012, is newer than 51% of them.

  • NPI issued2012 · 51% of these records are older, 44% newer
  • In a Medicare fileYes · 90% of these records are
  • In the CMS Doctors and Clinicians fileYes · 81% of these records are
  • Graduated2012 · median 2010 among the 2,505 with a school on file
  • Record last updated2021 · 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).

36 hospitalist physician records list a practice address in Mountain View

They are 36 of the 2,467 NPPES records with a practice address in Mountain View, and 3,099 hospitalist physician records in California.

The 8 hospitalist physician records with the nearest ZIP codes

  1. Benjamin Chang, MDMountain View, CA 940401639185143
  2. Ryan Collins, M.D.Mountain View, CA 940401760442958
  3. Mahsa Esfahani, MDMountain View, CA 940401447205547
  4. Jose Fuentes, MDMountain View, CA 940401306944947
  5. Gregory KatoMountain View, CA 940401104924760
  6. Michael LimMountain View, CA 940401205934700
  7. Shreyas Mallur, M.D.Mountain View, CA 940401063519312
  8. Yen Nguyen, MDMountain View, CA 940401669567079

Common questions

What is Randy Liang, D.O.'s NPI number?

Randy Liang, D.O.'s National Provider Identifier (NPI) is 1346508207, issued on Apr 30, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Randy Liang, D.O. located?

The NPPES record lists a practice address at 701 E. EL Camino Real, Mountain View, CA, 94040. Phone: (650) 934-7000. Providers update this record themselves, so call before visiting.

How can I verify Randy Liang, D.O.'s license?

NPPES lists California license number 20A13232, 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 Randy Liang, D.O. prescribe under Medicare Part D?

In 2024, Randy Liang, D.O. had 183 Medicare Part D claims for 97 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.