NPPES file of Aug 9, 2026

Shuo Xu

Pediatrics Physician · San Francisco, CA

Shuo Xu is a pediatrics physician with a practice address in San Francisco, California, and NPI 1639731433, issued on Jul 1, 2019. Check the license (California A203663, 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
1639731433
Name
Shuo Xu
Primary taxonomy
Pediatrics Physician 208000000X
License number
A203663 CA
Self-reported in NPPES; status is on the state search
Practice location
1825 4TH St FL 6, San Francisco, CA 94143
Phone
(415) 476-3831
Enumerated
Jul 1, 2019
Record last updated
Sep 16, 2025
Fax
(415) 353-2657
Medicare enrollment
Enrolled (PECOS I20250930002936); may accept 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 1825 4TH St FL 6

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

  1. Shreya Agarwal, MDPediatric Hematology & Oncology Physician1841654944
  2. Hind Al Saif, MDClinical Genetics (M.D.) Physician1831403211
  3. Yu An, LCGCGenetic Counselor (M.S.)1972116937
  4. Austin Angelidakis, NPNurse Practitioner1326700287
  5. Karyn Austin, MD/PHDPediatric Cardiology Physician1639564370
  6. Serine Avagyan, MD, PHDPediatric Hematology & Oncology Physician1447540547

Verify Shuo Xu in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A203663
    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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Shuo Xu among 9,272 pediatrics physician records in California

Shuo Xu is one of 9,272 pediatrics physician records with a practice address in California. 31% 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 2019, is newer than 89% of them.

  • NPI issued2019 · 89% of these records are older, 9% newer
  • In a Medicare fileNo · 31% of these records are
  • In the CMS Doctors and Clinicians fileYes · 8% of these records are
  • Graduated2018 · median 2012 among the 754 with a school on file
  • Record last updated2025 · 65% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208000000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

514 pediatrics physician records list a practice address in San Francisco

They are 514 of the 38,143 NPPES records with a practice address in San Francisco, and 9,272 pediatrics physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 pediatrics physician records with the nearest ZIP codes

  1. Louis Chesler, M.D.San Francisco, CA 941431124060504
  2. Gwynne Church, M.D.San Francisco, CA 941431801838925
  3. John Elliott, M.D.San Francisco, CA 941431821042292
  4. Ilona Frieden, MDSan Francisco, CA 941431396703435
  5. Samuel Hawgood, MDSan Francisco, CA 941431144285776
  6. Melvin Heyman, M.D.San Francisco, CA 941431740222314
  7. Nancy Lewis, M.D.San Francisco, CA 941431245272368
  8. John McQuitty, M.D.San Francisco, CA 941431386682417

Common questions

What is Shuo Xu's NPI number?

Shuo Xu's National Provider Identifier (NPI) is 1639731433, issued on Jul 1, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Shuo Xu located?

The NPPES record lists a practice address at 1825 4TH St FL 6, San Francisco, CA, 94143. Phone: (415) 476-3831. Providers update this record themselves, so call before visiting.

How can I verify Shuo Xu's license?

NPPES lists California license number A203663, 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.