Edward Chay, M.D.
NPI 1851666143 · Ophthalmology Physician · Alexandria, VA
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Edward Chay, M.D. is a Ophthalmology Physician provider in Alexandria, VA (NPI 1851666143).
Provider details
- NPI number
- 1851666143
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 0101262043 (VA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
14 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
3,653 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 666 | $141 |
| Imaging of Optic Nerve92133 | 515 | $38 |
| Established Patient Complete Exam of Visual System92014 | 502 | $141 |
| Exam of Visual Field With Extended Testing92083 | 341 | $71 |
| Established Patient Problem Focused Exam of Visual System92012 | 327 | $100 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 323 | $100 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 19 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 478 | 154 |
| Tobramycin/Dexamethasonebrand: Tobramycin-Dexamethasone | 222 | 179 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 187 | 63 |
| Timolol Maleate | 94 | 33 |
| Brimonidine Tartrate | 88 | 27 |
| Bimatoprostbrand: Lumigan | 53 | 19 |
| Travoprost | 50 | 14 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$556 across 23 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 801 Farragut StPittsburgh, PA 15206-2201Phone: (412) 956-6717
Registry dates
- Enumerated
- 2012-03-20
- Last updated
- 2019-01-30
Frequently asked questions
- What is Edward Chay's NPI number?
- Edward Chay's National Provider Identifier (NPI) is 1851666143, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Edward Chay's specialty?
- Edward Chay is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Edward Chay located?
- Edward Chay's practice location on file with NPPES is 8101 Hinson Farm Rd Ste 203, Alexandria, VA 22306-3405.
- What is Edward Chay's phone number?
- The practice phone number listed in the NPPES registry for Edward Chay is (703) 997-9710.
- Does Edward Chay accept Medicare?
- Edward Chay is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Edward Chay's NPI active?
- Yes — Edward Chay's NPI (1851666143) is active in the NPPES registry as of the last update on 2019-01-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.