Physician Profile
Unclaimed ProfileAbout CHEN
Based in Westlake Village, CA, Joseph Juyo Chen, M.D. is listed in the NPI registry under ophthalmology. Joseph graduated from Baylor College of Medicine in 2009. Medicare claims data shows Joseph provided 3,540 services to 2,669 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
- (805) 987-5300
- Email not available
Practice Locations
4353 PARK TERRACE DR STE 150
Westlake Village, CA 91361
Procedures Most Often Billed to Medicare
3,540 services · 2,669 patients · 22 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Removal of cataract with insertion of prosthetic lens | Procedure | 66984 |
160 |
| Extracapsular removal of cataract with insertion of artificial lens and insertion of drainage device in front chamber of eye | Procedure | 66991 |
26 |
| Destruction of lens tissue using laser | Procedure | 66710 |
19 |
| Removal of recurring cataract in lens capsule using a laser | Procedure | 66821 |
17 |
| Removal of recurring cataract in lens capsule using a laser | Procedure | 66821 |
15 |
| Ultrasound scan of cornea to determine thickness | Imaging | 76514 |
88 |
| Established patient problem focused exam of visual system | Treatment | 92012 |
651 |
| Exam of visual field with extended testing | Treatment | 92083 |
393 |
| Imaging of optic nerve | Treatment | 92133 |
288 |
| Measurement of corneal curvature and depth of eye | Treatment | 92136 |
193 |
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 ophthalmology specialists at this location 7
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 3
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 ophthalmology specialists in Westlake Village 3
Same specialty, same city.
Trained at Baylor College of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 2009 at Baylor College of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Removal of cataract with insertion of prosthetic lens 8
Providers in CA who bill this service to Medicare most often.
Common questions
What does Dr. Chen specialize in?
Dr. Chen is an ophthalmology in Westlake Village, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “OPHTHALMOLOGY”.
NPI registry
Where is Dr. Chen located?
Dr. Chen is listed at 4353 PARK TERRACE DR STE 150, Westlake Village, CA 91361. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Chen's phone number?
The number on file is (805) 987-5300. 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 1639496953. 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
Where did Dr. Chen go to medical school?
Dr. Chen attended Baylor College of Medicine, graduating in 2009. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Chen have?
Dr. Chen has 17 years experience. Calculated from a graduation year of 2009, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Chen do most often?
According to Medicare billing data, Dr. Chen performs procedures including removal of cataract with insertion of prosthetic lens, extracapsular removal of cataract with insertion of artificial lens and insertion of drainage device in front chamber of eye and destruction of lens tissue using laser; reads or performs imaging such as ultrasound scan of cornea to determine thickness; provides treatments such as established patient problem focused exam of visual system and exam of visual field with extended testing, 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.