Physician Profile
Unclaimed ProfileAbout CHEN
Based in Santa Paula, CA, Jian A Chen, M.D. is listed in the NPI registry under internal medicine. Jian graduated from University of Southern California Keck School of Medicine in 1992. According to Medicare claims data, Jian cared for 926 Medicare patients across 1,450 services.
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
- (805) 525-7131
- Email not available
Practice Locations
243 MARCH ST
Santa Paula, CA 93060
Procedures Most Often Billed to Medicare
1,450 services · 926 patients · 12 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Influenza vaccine, trivalent, split virus, preservative-free, 0.5 ml dosage | Treatment | 90656 |
34 |
| Influenza vaccine, inactivated | Treatment | 90653 |
16 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | Treatment | 93000 |
15 |
| Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use | Treatment | 90677 |
15 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
627 |
| Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient' | Billing code | G2211 |
226 |
| Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | Billing code | G0439 |
166 |
| Annual depression screening, 5 to 15 minutes | Billing code | G0444 |
165 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
70 |
| Administration of influenza virus vaccine | Billing code | G0008 |
52 |
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 internal medicines at this location 2
Same specialty, same street address — most likely the same department or group.
Other internal medicines in Santa Paula 7
Same specialty, same city.
Trained at University of Southern California Keck School of Medicine 8
Other providers in the same specialty who trained at the same institution.
More connections — 16 related providers in 2 groups
Class of 1992 at University of Southern California Keck School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Influenza vaccine, trivalent, split virus, preservative-free, 0.5 ml dosage 8
Providers in CA who bill this service to Medicare most often.
Common questions
What is Dr. Chen's specialty?
Dr. Chen is an internal medicine in Santa Paula, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “INTERNAL MEDICINE”.
NPI registry
Where can I find Dr. Chen?
Dr. Chen is listed at 243 MARCH ST, Santa Paula, CA 93060. 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 (805) 525-7131. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Chen's NPI number?
Dr. Chen's National Provider Identifier is 1679568612. 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 Southern California Keck School of Medicine, graduating in 1992. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Chen been practicing?
Dr. Chen has 34 years experience. Calculated from a graduation year of 1992, 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 influenza vaccine, trivalent, split virus, preservative-free, 0.5 ml dosage and influenza vaccine, inactivated, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Chen confirmed this information?
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.