EDWARD CHAY M.D.
NPI 1851666143
Ophthalmology in Alexandria, VA

Q: What is Edward Chay's NPI number?

The NPI number for Edward Chay is 1851666143. It was assigned to this individual provider in the NPPES registry on March 20, 2012.

Q: What is Edward Chay'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 Edward Chay was last updated on January 30, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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 March 20, 2012PECOS EnrolledAccepts Medicare Assignment

95.09/100

CMS Quality Rating

8101 HINSON FARM RD STE 203, ALEXANDRIA, VA 22306(703) 997-9710 Get Directions Write a Review

NPPES record last updated: January 30, 2019. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jan 30, 2019, Jan 18, 2019, Jun 27, 2016 (3 updates tracked since 2016).

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About Edward Chay M.d. NPPES

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

EDWARD CHAY M.D. (NPI 1851666143) is an individual ophthalmology provider in Alexandria, Virginia, licensed in Virginia (0101262043) and active in the NPI registry since March 2012. He is enrolled in Medicare PECOS, maintains a secondary practice location in Pittsburgh, and is a graduate of Other (2012).

NPPES Registry Identity

NPI1851666143

Entity TypeIndividualMale

Primary Taxonomy207W00000X

Provider Legal NameEDWARD CHAYCredential: M.D.

Location Address8101 HINSON FARM RD STE 203Alexandria, VA 22306-3405

Mailing Address8101 Hinson Farm Rd Ste 203Alexandria, VA 22306-3405 · (703) 997-9710

Phone(703) 997-9710

Sole ProprietorYes

Medical School CMSOtherGraduated 2012

Enumeration DateMarch 20, 2012

Last NPPES UpdateJanuary 30, 20193 updates tracked since enumeration

✔ NPI 1851666143 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOphthalmologyAllopathic & Osteopathic Physicians

Taxonomy Code207W00000X

License✔ Licensed in VA · 0101262043

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.

8101 HINSON FARM RD STE 203, Alexandria, VA 22306

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Secondary Practice Location 1

Location 1801 Farragut StPittsburgh, PA 15206-2201 · Phone (412) 956-6717

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

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

Edward Chay 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 ID8325337876

PECOS Enrollment IDI20170516000636

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 Edward Chay reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

The Retina Group Of Washington, PLLC

20 mi

Ophthalmology

7501 GREENWAY CENTER DR STE 700
Greenbelt, MD 20770

Reassigned Medicare billing, District of Columbia enrollment
69 clinicians in this Medicare group

NPI 1225001654 (301) 441-4577

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.

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.

666 services626 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).

515 services392 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.

502 services476 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.

341 services266 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.

327 services222 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.

323 services236 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.

175 services165 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.

174 services134 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.

136 services88 patients

Principal care management services for a single high-risk disease, first 30 minutes of clinical staff time directed by health care professional, per calendar month 99426

Principal care management services focus on managing a single high-risk disease. This involves a health care professional directing clinical staff for the first 30 minutes each month. The aim is to monitor your health, coordinate care, and provide necessary support for your disease management.

130 services57 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.

88 services88 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.

81 services81 patients

Principal care management services for a single high-risk disease, each additional 30 minutes of clinical staff time directed by health care professional, per calendar month 99427

Principal Care Management (PCM) services focus on managing a single high-risk disease. It involves additional 30 minutes of clinical staff time per month, overseen by a healthcare professional. This includes monitoring your health, coordinating care, and developing a personalized treatment plan.

63 services46 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 services43 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.

36 services28 patients

Incision to improve eye fluid flow 65820

This procedure, known as a trabeculectomy, involves creating a small opening in the eye to improve fluid flow. This can help lower eye pressure in conditions like glaucoma. It's a common, safe procedure to protect your eye health.

26 services20 patients

Complex removal of cataract with insertion of prosthetic lens 66982

This procedure involves removing a cloudy lens (cataract) from your eye and replacing it with a clear, artificial lens. It helps restore vision that has been affected by the cataract. The operation is usually done under local anesthesia.

16 services12 patients

Exam of the internal drainage system of eye 92020

This is a procedure where your doctor examines the eye's internal drainage system, essential for maintaining eye pressure. They use specialized tools to check for blockages or damage that might lead to conditions like glaucoma. It's non-invasive and painless.

11 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 22306 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

$147.85 typical visit price

range $65.18 – $194.86

Typical copayment $36.96 (range $16.29 – $48.71)

Most-billed visit code 99204

Established Patient

$80.66 typical visit price

range $21.40 – $158.88

Typical copayment $20.16 (range $5.35 – $39.72)

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.

95.09/100

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

Individually scored

Quality

91.54

Improvement Activities

Cost

99.13

Reported Quality Measures

Age-Related Macular Degeneration (AMD): Dilated Macular Examination

92%199 patients2/55-star benchmark: 100%

Cataracts: 20/40 or Better Visual Acuity within 90 Days Following Cataract Surgery

98%112 patients4/55-star benchmark: 100%

Diabetes: Eye Exam

100%554 patients5/55-star benchmark: 100%

Diabetic Retinopathy: Communication with the Physician Managing Ongoing Diabetes Care

83%100 patients4/55-star benchmark: 100%

Documentation of Current Medications in the Medical Record

99%5,413 patients4/55-star benchmark: 100%

Overuse of Imaging for the Evaluation of Primary Headache

Lower rates are better for this measure.

0%36 patients

Preventive Care and Screening: Tobacco Use: Screening and Cessation Intervention

Patients combinedPopulations: 99% · 1,564 patients

Patients screened: 100% · 1,564 patients

77%71 patients4/55-star benchmark: 100%

Primary Open-Angle Glaucoma (POAG): Reduction of Intraocular Pressure (IOP) by 15% OR Documentation of a Plan of Care

99%431 patients

Tobacco Use and Help with Quitting Among Adolescents

91%56 patients3/55-star benchmark: 100%

Use of High-Risk Medications in Older Adults

Lower rates are better for this measure.

Patients appropriateDiagnosis: 0% · 2,279 patients

Patients totalRate: 0% · 2,279 patients

0%2,279 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.

DR. RICHARD MORGAN MD/PHD

Ophthalmology

8101 HINSON FARM RD STE 203
ALEXANDRIA, VA 22306

Fairfax County (703) 997-9710

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 Edward Chay's NPI number?

The NPI number for Edward Chay is 1851666143. It was assigned to this individual provider in the NPPES registry on March 20, 2012.

Where is Edward Chay located?

Edward Chay practices at 8101 Hinson Farm Rd Ste 203, Alexandria, VA 22306. The listed phone number is (703) 997-9710.

What is Edward Chay's specialty?

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

Is Edward Chay enrolled in Medicare?

Yes. Edward Chay 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 Edward Chay's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Edward Chay reassigns Medicare benefits to The Retina Group Of Washington, PLLC (Greenbelt, MD). 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 Edward Chay'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 Edward Chay was last updated on January 30, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.