NPPES file of Aug 9, 2026

Larry Rui Mo, M.D.

Emergency Medicine Physician · Stanford, CA

Larry Rui Mo, M.D. is an emergency medicine physician with a practice address in Stanford, California, and NPI 1548523590, issued on Jun 23, 2012. Check the license 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
1548523590
Name
Larry Rui Mo
Credential
M.D.
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
125-061370 IL
Self-reported in NPPES; status is on the state search
Practice location
300 Pasteur Drive, Alway Building M121, Stanford, CA 94305
Phone
(650) 723-0063
Enumerated
Jun 23, 2012
Record last updated
Feb 11, 2022
Medicare enrollment
Enrolled (PECOS I20150817001913); 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 300 Pasteur Drive, Alway Building M121

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

  1. Rwo-Wen Huang, M.D.Emergency Medicine Physician1417226572

Verify Larry Rui Mo in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of CaliforniaCheck 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

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39% fewer Medicare Part D claims than the average emergency medicine physician in 2024

137 Medicare Part D claims for 97 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 13 claims were for opioids.

  1. Larry Mo137
  2. Specialty average226

Most prescribed

  1. Ondansetron Odt21 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 IncSan Jose, CA

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

Larry Rui Mo among 7,751 emergency medicine physician records in California

Larry Rui Mo, M.D. is one of 7,751 emergency 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 2012, is newer than 63% of them.

  • NPI issued2012 · 63% of these records are older, 34% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 59% of these records are
  • Graduated2012 · median 2011 among the 4,560 with a school on file
  • Record last updated2022 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

163 emergency medicine physician records list a practice address in Stanford

They are 163 of the 5,606 NPPES records with a practice address in Stanford, and 7,751 emergency medicine physician records in California.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Milana Boukhman, MDStanford, CA 943051902863210
  2. Ian Brown, MDStanford, CA 943051851320451
  3. Ian Ferguson, D.O.Stanford, CA 943051265495345
  4. Marc Gautreau, MDStanford, CA 943051932182185
  5. David Ghilarducci, MDStanford, CA 943051861435661
  6. Michael Gisondi, MDStanford, CA 943051659317121
  7. Prasanthi Govindarajan, MDStanford, CA 943051205879517
  8. Grant Lipman, M.DStanford, CA 943051255374005

Common questions

What is Larry Rui Mo, M.D.'s NPI number?

Larry Rui Mo, M.D.'s National Provider Identifier (NPI) is 1548523590, issued on Jun 23, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Larry Rui Mo, M.D. located?

The NPPES record lists a practice address at 300 Pasteur Drive, Alway Building M121, Stanford, CA, 94305. Phone: (650) 723-0063. Providers update this record themselves, so call before visiting.

How can I verify Larry Rui Mo, M.D.'s license?

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 Larry Rui Mo, M.D. prescribe under Medicare Part D?

In 2024, Larry Rui Mo, M.D. had 137 Medicare Part D claims for 97 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.