DR. LUCY YINGXIN ZHANG M.D.
NPI 1326304809
Ophthalmology - Cornea and External Diseases Specialist in Greenbrae, CA

Q: What is Lucy Zhang's NPI number?

The NPI number for Lucy Zhang is 1326304809. It was assigned to this individual provider in the NPPES registry on April 9, 2012. The provider is also known as Dr. Yingxin Zhang M.D..

Q: What is Lucy Zhang's specialty?

The primary specialty registered for this NPI is Ophthalmology, specializing in Cornea and External Diseases Specialist, with taxonomy code 207WX0120X.

Q: When was this NPI record last updated?

The NPPES record for Lucy Zhang was last updated on September 18, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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 09, 2012PECOS EnrolledAccepts Medicare Assignment

75/100

CMS Quality Rating

900 S ELISEO DR STE 102, GREENBRAE, CA 94904(415) 461-8200(415) 461-4627 Get Directions Write a Review

NPPES record last updated: September 18, 2020. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Sep 18, 2020, Dec 3, 2019, May 9, 2016 and 1 more (4 updates tracked since 2016).

On this page

About Dr. Lucy Yingxin Zhang M.d. NPPES

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

DR. LUCY YINGXIN ZHANG M.D. (NPI 1326304809) is an individual cornea and external diseases specialist in Greenbrae, California, licensed in California (A148929) and active in the NPI registry since April 2012. She is enrolled in Medicare PECOS, maintains a secondary practice location in Burlingame, and is a graduate of Washington University School Of Medicine (2012).

NPPES Registry Identity

NPI1326304809

Entity TypeIndividualFemale

Primary Taxonomy207WX0120X

Provider Legal NameDR. LUCY YINGXIN ZHANGCredential: M.D.

Location Address900 S ELISEO DR STE 102Greenbrae, CA 94904

Mailing Address900 S Eliseo Dr Ste 102Greenbrae, CA 94904-2152 · (415) 461-8200 · Fax (415) 461-4627

Phone(415) 461-8200

Fax(415) 461-4627

Sole ProprietorNo

Medical School CMSWashington University School Of MedicineGraduated 2012

Enumeration DateApril 9, 2012

Last NPPES UpdateSeptember 18, 20204 updates tracked since enumeration

NPPES CertifiedSeptember 18, 2020

✔ NPI 1326304809 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOphthalmology · Cornea and External Diseases SpecialistAllopathic & Osteopathic Physicians

Taxonomy Code207WX0120X

License✔ Licensed in CA · A148929

Definition

An ophthalmologist who specializes in diseases of the cornea, sclera, eyelids, conjunctiva, and anterior segment of the eye.

900 S ELISEO DR STE 102, Greenbrae, CA 94904

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Other Names 1

Former Name (1)Dr. Yingxin Zhang M.d.

Secondary Practice Location 1

Location 11720 El Camino Real Ste 225Burlingame, CA 94010 · Phone (650) 697-3200 · Fax (650) 697-3203

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. Lucy Yingxin Zhang 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 ID7911218656

PECOS Enrollment IDI20170830000117

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 Reassignment

Medicare enrollment records show Lucy Zhang reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Robert R. Anderson M.D., Inc.

Same address

Ophthalmology

900 S ELISEO DR, SUITE 102
Greenbrae, CA 94904

Reassigned Medicare billing, California enrollment
Medicare enrollment name: Robert R Anderson MD Inc
4 clinicians in this Medicare group

NPI 1962695304 (415) 461-8200

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 18

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.

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.

824 services798 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.

774 services763 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.

434 services279 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).

251 services218 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.

232 services204 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.

156 services146 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.

94 services94 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.

93 services64 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.

92 services84 patients

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.

91 services86 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.

90 services62 patients

Closure of tear duct opening using plug 68761

Closure of the tear duct opening using a plug is a procedure to address excessive tear production. A small device is inserted into the tear duct to block it, reducing tear flow and relieving symptoms. This is a safe, reversible process, often performed in-office.

90 services31 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.

85 services82 patients

Extended exam of the back part of the eye with optic nerve drawing 92202

This procedure involves a detailed examination of the back part of your eye, focusing on the optic nerve, a crucial component for vision. A drawing or map of the optic nerve is created to help track any changes over time. This can help detect eye diseases early.

83 services83 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.

68 services57 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.

40 services39 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

36 services34 patients

Removal of eyelashes using forceps 67820

The removal of eyelashes using forceps is a simple procedure where a medical professional gently extracts unwanted or problematic eyelashes with a specialized tool. This is often done to alleviate discomfort or to treat conditions like trichiasis, where eyelashes grow inward.

17 services12 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94904 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

$154.04 typical visit price

range $69.07 – $202.63

Typical copayment $38.51 (range $17.26 – $50.65)

Most-billed visit code 99204

Established Patient

$85.00 typical visit price

range $23.44 – $166.64

Typical copayment $21.25 (range $5.86 – $41.66)

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.

75/100

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

Scored as part of a group practice

Reported Quality Measures

Diabetes: Eye Exam

Percentage of patients 18-75 years of age with diabetes who had a retinal or dilated eye exam by an eye care professional during the measurement period or a negative retinal exam (no evidence of retinopathy) in the 12 months prior to the measurement period

100%46 patients5/55-star benchmark: 100%

Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Other Providers at the Same Location NPPES

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

LOUISA LU MD

Ophthalmology

900 S ELISEO DR STE 102
GREENBRAE, CA 94904

Marin County (415) 461-8200

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 Lucy Zhang's NPI number?

The NPI number for Lucy Zhang is 1326304809. It was assigned to this individual provider in the NPPES registry on April 9, 2012. The provider is also known as Dr. Yingxin Zhang M.D..

Where is Lucy Zhang located?

Lucy Zhang practices at 900 S Eliseo Dr Ste 102, Greenbrae, CA 94904. The listed phone number is (415) 461-8200.

What is Lucy Zhang's specialty?

The primary specialty registered for this NPI is Ophthalmology, specializing in Cornea and External Diseases Specialist, with taxonomy code 207WX0120X.

Is Lucy Zhang enrolled in Medicare?

Yes. Lucy Zhang 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.

Which organization bills Medicare for Lucy Zhang's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Lucy Zhang reassigns Medicare benefits to Robert R. Anderson M.D., Inc. (Greenbrae, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Lucy Zhang's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Lucy Zhang was last updated on September 18, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.