John Liu, M.D.
NPI 1104886043 · Ophthalmology Physician · Waco, TX
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Liu, M.D. is a Ophthalmology Physician provider in Waco, TX (NPI 1104886043).
Provider details
- NPI number
- 1104886043
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- H3796 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
2,073 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 Complete Exam of Visual System92014 | 813 | $120 |
| Established Patient Problem Focused Exam of Visual System92012 | 442 | $85 |
| Imaging of Optic Nerve92133 | 218 | $35 |
| Imaging of Retina92134 | 151 | $38 |
| Ultrasound Scan to Determine Eye Length and Lens Power76519 | 125 | $32 |
| Exam of Visual Field With Extended Testing92083 | 102 | $60 |
| Removal of Cataract With Insertion of Prosthetic Lens |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 18 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 479 | 130 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 139 | 43 |
| Prednisolone Acetate | 85 | 71 |
| Timolol Maleate | 70 | 24 |
| Bimatoprostbrand: Lumigan | 57 | 15 |
| Ciprofloxacin Hcl | 25 | 22 |
| Brimonidine Tartrate/Timololbrand: Brimonidine Tartrate-Timolol | 23 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$742 across 24 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
Registry dates
- Enumerated
- 2006-03-24
- Last updated
- 2024-06-14
- Certified
- 2024-06-14
Frequently asked questions
- What is John Liu's NPI number?
- John Liu's National Provider Identifier (NPI) is 1104886043, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Liu's specialty?
- John Liu is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is John Liu located?
- John Liu's practice location on file with NPPES is 2400 Ambassador Dr, Waco, TX 76712-9702.
- What is John Liu's phone number?
- The practice phone number listed in the NPPES registry for John Liu is (254) 756-4457.
- Does John Liu accept Medicare?
- John Liu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Liu's NPI active?
- Yes — John Liu's NPI (1104886043) is active in the NPPES registry as of the last update on 2024-06-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.