NPPES file of Aug 9, 2026

Ryan Nicholas Chan, PA

Surgical Physician Assistant · Orange, CA

Ryan Nicholas Chan, PA is a surgical physician assistant with a practice address in Orange, California, and NPI 1093184988, issued on Sep 21, 2015. Check the license with the California board that licenses this profession; 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
1093184988
Name
Ryan Nicholas Chan
Credential
PA
Primary taxonomy
Surgical Physician Assistant 363AS0400X
License number
019033 NY
Self-reported in NPPES; status is on the state search
Practice location
1310 W Stewart Dr Ste 503, Orange, CA 92868
Phone
(714) 997-2224
Enumerated
Sep 21, 2015
Record last updated
Jun 21, 2024
Fax
(714) 997-1187
Medicare enrollment
Enrolled (PECOS I20210817003097); 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 1310 W Stewart Dr Ste 503

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

  1. Sohail Sareh, MDThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1891158010
  2. Eugene Won, MDThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1659799658

Verify Ryan Nicholas Chan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this professionCheck 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
Find the California license search

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Industry payments in 2024: $3,252.29

35 payments; by number, the most common kind was food and beverage; the largest payer was Abiomed. The 7,578 providers of this specialty with any payment received $703.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Ryan Chan$3,252.29
  2. Specialty average$703.95

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

Bills Medicare through one group practice

  1. Orange County Thoracic And Cardiovascular Surgeons A Med CorpOrange, CA

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

Ryan Nicholas Chan among 1,075 surgical physician assistant records in California

Ryan Nicholas Chan, PA is one of 1,075 surgical physician assistant records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 66% of them.

  • NPI issued2015 · 66% of these records are older, 30% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated2015 · median 2012 among the 649 with a school on file
  • Record last updated2024 · 53% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363AS0400X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Surgical Physician Assistant providers in California

There are 1,075 surgical physician assistant records in California.

The 8 surgical physician assistant records with the nearest ZIP codes

  1. Mykeisha Alzaatra, PA-COrange, CA 928681629367172
  2. Jennifer AnzoOrange, CA 928681992044770
  3. Michael Digiovanni, PAOrange, CA 928681477579704
  4. Katherine Gebhardt, PAOrange, CA 928681285720516
  5. Lionel Gonzales, PAOrange, CA 928681326072950
  6. Jason Laird, PA-COrange, CA 928681437486073
  7. Albert Lin, PAOrange, CA 928681316979479
  8. Treanna Mather, P.A.Orange, CA 928681942440334

Common questions

What is Ryan Nicholas Chan, PA's NPI number?

Ryan Nicholas Chan, PA's National Provider Identifier (NPI) is 1093184988, issued on Sep 21, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Ryan Nicholas Chan, PA located?

The NPPES record lists a practice address at 1310 W Stewart Dr Ste 503, Orange, CA, 92868. Phone: (714) 997-2224. Providers update this record themselves, so call before visiting.

How can I verify Ryan Nicholas Chan, PA's license?

Search the California board that licenses this profession; the NPPES record confirms identity 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.