Ryan Nicholas Chan, PA
- Medicare patients, 2024
- 11
- Hospital affiliations
- 4
- Industry payments
- $7,170
- Medical groups
- 4
- State license
- 1
- Practice address
- 101 E. Valencia Mesa Drive, Fullerton, CA 92835
- Practice phone
- Call (714) 578-8706
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
St. Jude Medical Center - Unit
Acute Care Hospital-Unit · Fullerton, California
Find Ryan Chan's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Ryan Nicholas Chan is a surgical physician assistant in Fullerton, California
Ryan Chan practices at St. Jude Medical Center - Unit in Fullerton, California.
Ryan Chan's NPI, 1093184988, was assigned on September 21, 2015. Ryan Chan holds New York license 019033.
- NPI
- 1093184988NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6901107291
- NPI enumeration date
- September 21, 2015
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (714) 578-8706
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 37
- Medical school graduation
- 2015
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Ryan Nicholas Chan practices at St. Jude Medical Center - Unit in Fullerton, California
Ryan Chan's primary practice is St. Jude Medical Center - Unit, at 101 E. Valencia Mesa Drive, Fullerton, CA 92835 in Orange County. The practice phone is (714) 578-8706.
- St. Jude Medical Center - Unit101 E. Valencia Mesa Drive, Fullerton, CA 92835 · Orange CountyPhone(714) 578-8706
Source: Dmand AI Affiliation Data
Ryan Nicholas Chan is affiliated with 5 sites of care and 4 medical groups
Ryan Chan's primary practice is St. Jude Medical Center - Unit in Fullerton, California. Ryan Chan is also affiliated with Providence St. Jude Medical Center. The medical group on file is Montefiore Einstein Faculty Practice Group. Dmand AI also links Ryan Chan to 2 more hospitals, 3 medical groups and 1 group practice or clinic, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Ryan Nicholas Chan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Ryan Chan practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| St. Jude Medical Center - Unit | Available with a free account |
| +4 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Ryan Nicholas Chan is one of 883 surgical physician assistants in California
Surgical is Ryan Chan's primary specialty in the NPI Registry, under taxonomy code 363AS0400X. Ryan Chan is board certified in certified physician assistant by the National Commission on Certification of Physician Assistants (NCCPA). Ryan Chan is licensed in New York.
Specialties and state licenses
- Surgical physician assistant, New YorkPrimary
Surgical physician assistants near Ryan Chan
Counts of surgical physician assistants with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Ryan Nicholas Chan treated 11 Medicare patients in 2024, average age 75
CMS counts 11 Medicare patients who saw Ryan Chan in 2024. The largest group is under 65, with 0 patients. Their average risk score is 2.53, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Ryan Chan's median patient age at 71, with 20% women.
Ryan Chan's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Ryan Chan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women20%
- Men80%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Ryan Nicholas Chan takes part in Medicare
Ryan Chan accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
Ryan Nicholas Chan received $7,170 in industry payments from 2024 to 2025
CMS Open Payments shows 68 general payments to Ryan Chan from 12 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 59% of the total. Abiomed paid the most, $2,266.
General payments to Ryan Chan by program year, 2024 to 2025
General payments to Ryan Chan by kind, 2024 to 2025
- Food and beverage$4,26059%
- Travel and lodging$2,91041%
Companies that paid Ryan Chan the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Ryan Nicholas Chan is board certified in certified physician assistant
- Board certified in certified physician assistant
Source: Dmand AI Professional Profile Data
Sources for Ryan Nicholas Chan's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Ryan Nicholas Chan
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Ryan Nicholas Chan's NPI number?
Ryan Nicholas Chan's NPI number is 1093184988. It was assigned on September 21, 2015, and it is active in the NPI Registry.
What does Ryan Nicholas Chan specialize in?
Ryan Nicholas Chan is a surgical physician assistant in Fullerton, California. The primary specialty in the NPI Registry is Surgical Physician Assistant (taxonomy code 363AS0400X).
Where does Ryan Nicholas Chan practice?
Ryan Chan practices at 101 E. Valencia Mesa Drive, Fullerton, CA 92835. Ryan Chan's primary practice is St. Jude Medical Center - Unit in Fullerton, California. Dmand AI also links Ryan Chan to 2 hospitals, 3 medical groups and 1 group practice or clinic.
What is Ryan Nicholas Chan's office phone number?
The practice phone on file for Ryan Chan is (714) 578-8706.
What is Ryan Nicholas Chan's medical license number?
Ryan Chan holds New York license 019033.
Which hospitals is Ryan Nicholas Chan affiliated with?
Ryan Chan is affiliated with Providence St. Jude Medical Center. Dmand AI links Ryan Chan to 3 more hospitals.
What medical group is Ryan Nicholas Chan part of?
Ryan Chan is linked to Montefiore Einstein Faculty Practice Group. Dmand AI links Ryan Chan to 3 more medical groups.
Does Ryan Nicholas Chan accept Medicare?
Yes. CMS lists Ryan Chan as accepting Medicare assignment.
How many Medicare patients does Ryan Nicholas Chan see?
CMS counts 11 Medicare patients who saw Ryan Chan in 2024, with an average age of 75.
Is Ryan Nicholas Chan board certified?
Yes. Ryan Chan is board certified in certified physician assistant by the National Commission on Certification of Physician Assistants (NCCPA).
Has Ryan Nicholas Chan received payments from drug or device companies?
CMS Open Payments shows $7,170 in general payments to Ryan Chan from 12 companies from 2024 to 2025. The largest total came from Abiomed.
How long has Ryan Nicholas Chan been practicing?
Ryan Chan graduated from medical school in 2015, 11 years ago.
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