ALEXANDER FRANCIS CHEN
NPI 1528594546
Ophthalmology in Pasadena, CA

Active since May 11, 2017PECOS EnrolledAccepts Medicare Assignment
100 E CALIFORNIA BLVD, PASADENA, CA 91105(800) 898-2020 Get Directions Write a Review

NPPES record last updated: December 30, 2024. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Dec 30, 2024, Dec 18, 2024, Apr 22, 2021 and 2 more (5 updates tracked since 2017).

About Alexander Francis Chen NPPES

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

ALEXANDER FRANCIS CHEN (NPI 1528594546) is an individual ophthalmology provider in Pasadena, California, licensed in California (A171467) and active in the NPI registry since May 2017. He is enrolled in Medicare PECOS and is a graduate of University Of Southern California Keck School Of Medicine (2017).

NPPES Registry Identity

NPI1528594546
Entity TypeIndividualMale
Primary Taxonomy207W00000X
Provider Legal NameALEXANDER FRANCIS CHEN
Location Address100 E CALIFORNIA BLVDPasadena, CA 91105-3205
Mailing Address2824 Arizona Ave Apt 2Santa Monica, CA 90404-1578 · (310) 863-4761
Sole ProprietorNo
Medical School CMSUniversity Of Southern California Keck School Of MedicineGraduated 2017
Enumeration DateMay 11, 2017
Last NPPES UpdateDecember 30, 20245 updates tracked since enumeration
NPPES CertifiedDecember 18, 2024
NPI 1528594546 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyOphthalmologyAllopathic & Osteopathic Physicians
Taxonomy Code207W00000X
License Licensed in CA · A171467
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.
100 E CALIFORNIA BLVD, Pasadena, CA 91105

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Alexander Francis Chen 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 ID1254732498
PECOS Enrollment IDI20210625001631
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.

Areas of Expertise CMS Part B claims 11

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 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.
118 services87 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).
96 services82 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.
76 services59 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.
75 services60 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.
43 services40 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.
25 services25 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 91105 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
$142.39 typical visit price
range $62.96 – $187.60
Typical copayment $35.59 (range $15.74 – $46.90)
Most-billed visit code 99204
Established Patient
$77.96 typical visit price
range $20.84 – $153.61
Typical copayment $19.49 (range $5.21 – $38.40)
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.

Other Providers at the Same Location NPPES 13

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

Optometrist
100 E CALIFORNIA BLVD
PASADENA, CA 91105
Ophthalmology
100 E CALIFORNIA BLVD
PASADENA, CA 91105
Ophthalmology (Retina Specialist)
100 E CALIFORNIA BLVD
PASADENA, CA 91105
Ophthalmology
100 E CALIFORNIA BLVD
PASADENA, CA 91105
Ophthalmology (Retina Specialist)
100 E CALIFORNIA BLVD
PASADENA, CA 91105
Optometrist
100 E CALIFORNIA BLVD
PASADENA, CA 91105
Ophthalmology
100 E CALIFORNIA BLVD
PASADENA, CA 91105
Ophthalmology (Retina Specialist)
100 E CALIFORNIA BLVD
PASADENA, CA 91105

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Alexander Chen's NPI number?

The NPI number for Alexander Chen is 1528594546. It was assigned to this individual provider in the NPPES registry on May 11, 2017.

Where is Alexander Chen located?

Alexander Chen practices at 100 E California Blvd, Pasadena, CA 91105. The listed phone number is (800) 898-2020.

What is Alexander Chen's specialty?

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

Is Alexander Chen enrolled in Medicare?

Yes. Alexander Chen is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Alexander Chen accept?

Health plans from Blue Cross Blue Shield of Wyoming and Blue Cross and Blue Shield of Louisiana list Alexander Chen as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Alexander Chen was last updated on December 30, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 months 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.