NPPES file of Aug 9, 2026

Christopher K. Chyu, M.D.

Pediatric Cardiology Physician · San Francisco, CA

Christopher K. Chyu, M.D. is a pediatric cardiology physician with a practice address in San Francisco, California, and NPI 1639306020, issued on Jun 12, 2009. Check the license (California 115571, 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
1639306020
Name
Christopher K. Chyu
Credential
M.D.
Primary taxonomy
Pediatric Cardiology Physician 2080P0202X
License number
115571 CA
Self-reported in NPPES; status is on the state search
Practice location
550 16TH St, San Francisco, CA 94143
Phone
(415) 353-4141
Enumerated
Jun 12, 2009
Record last updated
Sep 27, 2016 (not updated in 10 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest pediatric cardiology physician records → All 363 in California → Look up another NPI →

Also registered at 550 16TH St

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

  1. Naomi Abe, M.D.Pediatric Emergency Medicine (Pediatrics) Physician1821387572
  2. Mara Bailey-Olson, NPNurse Practitioner1104100692
  3. Liat Bird, MDPediatrics Physician1902269087
  4. Tiffany Bittle, NNP-BCNeonatal Nurse Practitioner1073297495
  5. Julie Boiko, MDPediatric Hematology & Oncology Physician1891149506
  6. Amanda Bryson, M.D.Pediatrics Physician1912438847

Verify Christopher K. Chyu in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 115571    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

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Industry payments in 2024: $201.75

1 payment: food and beverage; the largest payer was Abbott Laboratories. The 1,156 providers of this specialty with any payment received $2,864.57 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Christopher Chyu$201.75
  2. Specialty average$2,864.57

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Christopher K. Chyu among 363 pediatric cardiology physician records in California

Christopher K. Chyu, M.D. is one of 363 pediatric cardiology physician records with a practice address in California. 59% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 58% of them.

  • NPI issued2009 · 58% of these records are older, 36% newer
  • In a Medicare fileYes · 59% of these records are
  • In the CMS Doctors and Clinicians fileNo · 45% of these records are
  • Record last updated2016 · 50% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2080P0202X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Pediatric Cardiology Physician providers in California

There are 363 pediatric cardiology physician records in California.

All 363 in California → Every provider in San Francisco → Pediatric Cardiology Physician nationwide →

The 8 pediatric cardiology physician records with the nearest ZIP codes

  1. Ian Adatia, MB CHBSan Francisco, CA 941431427085299
  2. James Bristow, M. D.San Francisco, CA 941431134240476
  3. Mark Cocalis, M.D.San Francisco, CA 941431700817913
  4. Jeffrey Gossett, M.D.San Francisco, CA 941431780790378
  5. Lisa Hornberger, M. D.San Francisco, CA 941431033287453
  6. Walter Li, M.D.San Francisco, CA 941431588866578
  7. Amy McCammond, M.D.San Francisco, CA 941431093903056
  8. Jeffery Meadows, M.D.San Francisco, CA 941431255365003

Common questions

What is Christopher K. Chyu, M.D.'s NPI number?

Christopher K. Chyu, M.D.'s National Provider Identifier (NPI) is 1639306020, issued on Jun 12, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Christopher K. Chyu, M.D. located?

The NPPES record lists a practice address at 550 16TH St, San Francisco, CA, 94143. Phone: (415) 353-4141. Providers update this record themselves, so call before visiting.

How can I verify Christopher K. Chyu, M.D.'s license?

NPPES lists California license number 115571, 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. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.