NPPES file of Aug 9, 2026

Stephen Liangtjan Trisno, MD

Pediatric Gastroenterology Physician · Palo Alto, CA

Stephen Liangtjan Trisno, MD is a pediatric gastroenterology physician with a practice address in Palo Alto, California, and NPI 1871129866, issued on Mar 21, 2020. Check the license (California A187850, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1871129866
Name
Stephen Liangtjan Trisno
Credential
MD
Primary taxonomy
Pediatric Gastroenterology Physician 2080P0206X
License number
A187850 CA
Self-reported in NPPES; status is on the state search
Practice location
725 Welch RD, Palo Alto, CA 94304
Phone
(650) 497-8000
Enumerated
Mar 21, 2020
Record last updated
Jul 7, 2026
Medicare enrollment
Enrolled (PECOS I20260609002715); may accept Medicare assignment
Medical or professional school
University Of Cincinnati College Of Medicine, 2020
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.
Download card Updates feed

Also registered at 725 Welch RD

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

  1. Shayda Abadi, NPNurse Practitioner1316745540
  2. Natasha AbadillaStudent in an Organized Health Care Education/Training Program1194306928
  3. Alexandra Abbott, MDPediatrics Physician1760018675
  4. Steven Abboud, MDAnesthesiology Physician1619364908
  5. Ali Abdelhafiz Abdelsamea, MDPediatrics Physician1699390104
  6. Alireza Abdollah Shamshirsaz, M.D.Obstetrics & Gynecology Physician1881804235

Verify Stephen Liangtjan Trisno in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A187850
    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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

Stephen Liangtjan Trisno among 264 pediatric gastroenterology physician records in California

Stephen Liangtjan Trisno, MD is one of 264 pediatric gastroenterology physician records with a practice address in California. 62% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2020, is newer than 98% of them.

  • NPI issued2020 · 98% of these records are older, under 1% newer
  • In a Medicare fileNo · 62% of these records are
  • In the CMS Doctors and Clinicians fileYes · 30% of these records are
  • Graduated2020 · median 2007 among the 78 with a school on file
  • Record last updated2026 · 55% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2080P0206X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Pediatric Gastroenterology Physician providers in California

There are 264 pediatric gastroenterology physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 pediatric gastroenterology physician records with the nearest ZIP codes

  1. Dorsey Bass, MDPalo Alto, CA 943041275624991
  2. William Berquist, MDPalo Alto, CA 943041659461457
  3. Ricardo Castillo, MDPalo Alto, CA 943041487738811
  4. Mitchell Cohen, MDPalo Alto, CA 943041235202029
  5. Matthew Goldman, M.D.Palo Alto, CA 943041255436242
  6. Alka Goyal, MDPalo Alto, CA 943041831162726
  7. Roberto Gugig, MDPalo Alto, CA 943041639138852
  8. Sohail Husain, MDPalo Alto, CA 943041427031970

Common questions

What is Stephen Liangtjan Trisno, MD's NPI number?

Stephen Liangtjan Trisno, MD's National Provider Identifier (NPI) is 1871129866, issued on Mar 21, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Stephen Liangtjan Trisno, MD located?

The NPPES record lists a practice address at 725 Welch RD, Palo Alto, CA, 94304. Phone: (650) 497-8000. Providers update this record themselves, so call before visiting.

How can I verify Stephen Liangtjan Trisno, MD's license?

NPPES lists California license number A187850, 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.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.