Physician Profile
Unclaimed ProfileAbout CHEN
Chuan-Jay J Chen, MD practices emergency medicine in Saint Helena, CA. Chuan-Jay is a 2017 graduate of University of California, San Francisco School of Medicine. Medicare claims data shows Chuan-Jay provided 933 services to 895 patients.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (707) 963-6425
- Email not available
Practice Locations
10 WOODLAND RD
Saint Helena, CA 94574
Procedures Most Often Billed to Medicare
933 services · 895 patients · 6 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | Treatment | 93010 |
278 |
| Electrocardiogram (ecg) 1 to 3 leads with review by physician only | Treatment | 93042 |
139 |
| Emergency department visit with high level of medical decision making | Office visit | 99285 |
220 |
| Critical care, first 30-74 minutes | Office visit | 99291 |
140 |
| Emergency department visit with moderate level of medical decision making | Office visit | 99284 |
89 |
| Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | Office visit | 99223 |
67 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other emergency medicines at this location 2
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 1
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 27 related providers in 4 groups
Other emergency medicines in Saint Helena 3
Same specialty, same city.
Trained at University of California, San Francisco School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 2017 at University of California, San Francisco School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 8
Providers in CA who bill this service to Medicare most often.
Common questions
What is Dr. Chen's specialty?
Dr. Chen is an emergency medicine in Saint Helena, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “EMERGENCY MEDICINE”.
NPI registry
Where can I find Dr. Chen?
Dr. Chen is listed at 10 WOODLAND RD, Saint Helena, CA 94574. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Chen?
The number on file is (707) 963-6425. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Chen?
Dr. Chen's National Provider Identifier is 1205366457. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
What is Dr. Chen's medical education?
Dr. Chen attended University of California, San Francisco School of Medicine, graduating in 2017. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Chen have?
Dr. Chen has 9 years experience. Calculated from a graduation year of 2017, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Chen known for?
According to Medicare billing data, Dr. Chen provides treatments such as routine electrocardiogram using at least 12 leads with interpretation and report only and electrocardiogram 1 to 3 leads with review by physician only, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Chen's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Chen. If this is you, claiming it is free.
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Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.