Merry Zhechao Ruan
NPI 1770043473ActiveIndividual· Ophthalmology· Houston, TX
Ophthalmology in Houston, Texas, trained at Columbia University College of Physicians and Surgeons (class of 2019). Their prescriptions cost Medicare Part D more than their services did: $48,917 for 633 claims, against $3,691 paid for services in 2024. Alcon Vision LLC was the largest of 10 companies reporting payments in 2025, $1,321 in all, mostly food and beverage.
Overview
| NPI | 1770043473 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | No |
| NPI issued | Mar 20, 2019 |
| Last updated in NPPES | Oct 28, 2026 |
| Certified by provider | Oct 28, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Ophthalmology Primary | 207W00000X | V1603 | TX |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Ophthalmology (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 72 |
|---|---|
| Services billed | 75 across 10 procedure codes |
| Paid by Medicare | $3,691 |
Part D prescriptions in 2024
| Prescriptions (claims) | 633 · 1,191 30-day fills |
|---|---|
| Patients | 182 |
| Total drug cost | $48,917 |
| Generic share | 76% of claims |
Education and affiliations
| Medical school | Columbia University College of Physicians and Surgeons |
|---|---|
| Graduation year | 2019 |
| Medicare specialty | Ophthalmology |
Medical group
- Hea Clinic PAShenandoah, TX · 42 clinicians
Industry payments (Open Payments)
- 2025$1,321 · 35 payments from 10 companies
- 2024$1,408 · 12 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Alcon Vision LLC | $427.75 | 8 |
| Abbvie Inc. | $297.79 | 11 |
| Dompe US, Inc. | $172.54 | 3 |
| Sight Sciences, Inc. | $170.37 | 2 |
| Tarsus Pharmaceuticals, Inc. | $73.51 | 3 |
What the 2025 payments were for
- Food and Beverage$1,321 · 35 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 341 ophthalmologists in Houston · All ophthalmologists in Texas