DR. JOSEPH JUYO CHEN M.D.
NPI 1639496953
Ophthalmology in Westlake Village, CA

Q: What is Joseph Chen's NPI number?

The NPI number for Joseph Chen is 1639496953. It was assigned to this individual provider in the NPPES registry on April 26, 2010.

Q: What is Joseph Chen's specialty?

The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.

Q: When was this NPI record last updated?

The NPPES record for Joseph Chen was last updated on July 10, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since April 26, 2010PECOS EnrolledAccepts Medicare Assignment

85.52/100

CMS Quality Rating

4353 PARK TERRACE DR STE 150, WESTLAKE VILLAGE, CA 91361(805) 987-5300 Get Directions Write a Review

NPPES record last updated: July 10, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jul 10, 2023, Nov 29, 2022, Dec 9, 2020 (3 updates tracked since 2020).

On this page

About Dr. Joseph Juyo Chen M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. JOSEPH JUYO CHEN M.D. (NPI 1639496953) is an individual ophthalmology provider in Westlake Village, California, licensed in California (A131213) and active in the NPI registry since April 2010. He is enrolled in Medicare PECOS and is a graduate of Baylor College Of Medicine (2009).

NPPES Registry Identity

NPI1639496953

Entity TypeIndividualMale

Primary Taxonomy207W00000X

Provider Legal NameDR. JOSEPH JUYO CHENCredential: M.D.

Location Address4353 PARK TERRACE DR STE 150Westlake Village, CA 91361-4639

Mailing Address4353 Park Terrace Dr Ste 150Westlake Village, CA 91361-4639 · (805) 987-5300

Phone(805) 987-5300

Sole ProprietorNo

Medical School CMSBaylor College Of MedicineGraduated 2009

Enumeration DateApril 26, 2010

Last NPPES UpdateJuly 10, 20233 updates tracked since enumeration

NPPES CertifiedJuly 10, 2023

✔ NPI 1639496953 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOphthalmologyAllopathic & Osteopathic Physicians

Taxonomy Code207W00000X

Licenses✔ Licensed in CA · A131213✔ Licensed in TX · BP20036802

Definition

An ophthalmologist has the knowledge and professional skills needed to provide comprehensive eye and vision care. Ophthalmologists are medically trained to diagnose, monitor and medically or surgically treat all ocular and visual disorders. This includes problems affecting the eye and its component structures, the eyelids, the orbit and the visual pathways. In so doing, an ophthalmologist prescribes vision services, including glasses and contact lenses.

4353 PARK TERRACE DR STE 150, Westlake Village, CA 91361

Open in Google Maps ↗

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Joseph Juyo Chen M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID5799924528

PECOS Enrollment IDI20140910002491

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

Medicare enrollment records show Joseph Chen reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Paul J Dougherty M D Inc

Same address

Ophthalmology

4353 PARK TERRACE DR STE 150
Westlake Village, CA 91361

Reassigned Medicare billing, California enrollment
20 clinicians in this Medicare group

NPI 1649203639 (805) 987-5300

County Of Ventura

5.0 mi

Federally Qualified Health Center (FQHC)

125 W THOUSAND OAKS BLVD, SUITE 300
Thousand Oaks, CA 91360

Reassigned Medicare billing, California enrollment
710 clinicians in this Medicare group

NPI 1316188253 (805) 418-9100

Santa Barbara Eyecare Inc., A Professional Medical Corporation

57 mi

Ophthalmology

2946 DE LA VINA ST
Santa Barbara, CA 93105

Reassigned Medicare billing, California enrollment
6 clinicians in this Medicare group

NPI 1245851534 (805) 963-1997

Sutter Bay Medical Foundation

278 mi

Ambulatory Surgical

2506 SAMARITAN CT
San Jose, CA 95124

Reassigned Medicare billing, California enrollment
Also billed through NPI 1043654486 (California), NPI 1568851327 (California), NPI 1982845186 (California), NPI 1306241534 (California), NPI 1013950807 (California)
184 clinicians in this Medicare group

NPI 1033817168 (408) 203-3941

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 22

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient problem focused exam of visual system 92012

This is a routine check-up for existing patients focusing on the visual system. It involves examining your eyes to detect any potential issues or changes in your vision. It's a crucial part of maintaining good eye health.

651 services364 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

454 services270 patients

Exam of visual field with extended testing 92083

An extended visual field exam is a detailed test to evaluate your peripheral (side) vision. It helps to detect any potential blind spots which may not be noticeable in daily life. These could be caused by eye diseases like glaucoma, or neurological conditions.

393 services304 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

389 services288 patients

Imaging of optic nerve 92133

Imaging of the optic nerve is a non-invasive procedure that captures detailed pictures of your optic nerve. It helps doctors assess eye health, particularly for conditions like glaucoma. It's painless, quick, and uses safe technology like MRI or OCT (Optical Coherence Tomography).

288 services282 patients

Measurement of corneal curvature and depth of eye 92136

This procedure measures the shape and depth of your eye, specifically the cornea, the clear front surface. It helps in diagnosing conditions, planning for surgeries, or fitting contact lenses. It's non-invasive and painless.

193 services115 patients

Established patient complete exam of visual system 92014

An established patient complete exam of the visual system involves a thorough check of your eyes and vision. It assesses eye health, checks for diseases, and measures your ability to see clearly at different distances. It's a routine, non-invasive procedure.

187 services166 patients

Imaging of retina 92134

Imaging of the retina is a non-invasive procedure that captures detailed images of your eye's interior. This helps detect conditions like macular degeneration or retinal detachment. It's painless and takes only a few minutes.

170 services158 patients

Removal of cataract with insertion of prosthetic lens 66984

This is a procedure where a cloudy lens in your eye, known as a cataract, is removed. After removal, a clear artificial lens is inserted. This helps to restore your vision, enabling you to see clearly again.

160 services98 patients

Measurement of corneal curvature and depth of eye 92136

131 services128 patients

New patient complete exam of visual system 92004

A new patient complete exam of the visual system is a thorough evaluation of your eyes and vision. It checks for any potential issues and assesses overall eye health. It includes tests for visual acuity, eye movement, and light response.

113 services113 patients

Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212

This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.

93 services87 patients

Ultrasound scan of cornea to determine thickness 76514

An ultrasound scan of the cornea is a non-invasive procedure that uses sound waves to measure the thickness of your cornea. This helps in diagnosing certain eye conditions and planning treatments. No discomfort or pain is typically experienced.

88 services87 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

62 services62 patients

New patient problem focused exam of visual system 92002

A new patient problem-focused exam of the visual system is a basic evaluation of your eyes and vision. It includes checking your eye movements, visual acuity, and general eye health. It helps detect any potential issues early for timely treatment.

36 services36 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

29 services29 patients

Extracapsular removal of cataract with insertion of artificial lens and insertion of drainage device in front chamber of eye 66991

This is a two-part eye procedure. First, a cloudy lens (cataract) is removed from its outer layer and replaced with an artificial lens to improve vision. Second, a drainage device is inserted into the front part of the eye to manage fluid levels, preventing pressure build-up.

26 services18 patients

Destruction of lens tissue using laser 66710

Destruction of lens tissue using a laser is a medical procedure aimed at treating eye conditions like cataracts. A laser is employed to break down the affected lens tissue, which is then removed. This allows the insertion of an artificial lens to improve vision.

19 services15 patients

Removal of recurring cataract in lens capsule using a laser 66821

This procedure, known as YAG laser capsulotomy, treats cloudiness in the lens capsule following cataract surgery. A laser is used to create a small hole in the cloudy capsule, allowing light to pass through and restore clear vision. It's a quick, painless procedure.

17 services14 patients

Removal of recurring cataract in lens capsule using a laser 66821

15 services11 patients

Ct scan of cornea 92025

A CT scan of the cornea is a non-invasive imaging test that uses X-rays to capture detailed pictures of your eye's cornea. It helps in diagnosing diseases or damage, planning for surgery, or evaluating the results of a treatment. It's a safe and painless procedure.

15 services13 patients

Photography of the retina 92250

Photography of the retina, also known as retinal imaging, is a non-invasive procedure that captures images of the back of your eye. This helps doctors identify and monitor conditions like glaucoma, macular degeneration, or diabetic retinopathy. It's painless and quick, often part of a routine eye exam.

11 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 91361 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$140.72 typical visit price

range $62.32 – $185.36

Typical copayment $35.18 (range $15.58 – $46.34)

Most-billed visit code 99204

Established Patient

$77.11 typical visit price

range $20.68 – $151.85

Typical copayment $19.27 (range $5.17 – $37.96)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

85.52/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

71.04

Improvement Activities

Other Providers at the Same Location NPPES 12

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MS. XIAOLIN ZHANG M.D.

Ophthalmology