Christina Bui, M.D.
NPI 1659558617 · Ophthalmology Physician · San Antonio, TX
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Christina Bui, M.D. is a Ophthalmology Physician provider in San Antonio, TX (NPI 1659558617).
Provider details
- NPI number
- 1659558617
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- M7070 (TX)
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
18 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
1,990 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 424 | $86 |
| Imaging of Retina92134 | 390 | $38 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 344 | $122 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 151 | $159 |
| Imaging of Optic Nerve92133 | 148 | $32 |
| Exam of Visual Field With Extended Testing92083 | 146 | $59 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 20 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 287 | 94 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 75 | 34 |
| Ofloxacin | 71 | 65 |
| Cyclosporinebrand: Restasis | 57 | 26 |
| Dorzolamide Hcl | 54 | 21 |
| Brimonidine Tartrate | 53 | 20 |
| Timolol Maleate | 51 | 19 |
| Neomycin/Polymyxin B/Dexametha |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$216 across 5 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
- 2008-01-22
- Last updated
- 2013-12-17
Frequently asked questions
- What is Christina Bui's NPI number?
- Christina Bui's National Provider Identifier (NPI) is 1659558617, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Christina Bui's specialty?
- Christina Bui is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Christina Bui located?
- Christina Bui's practice location on file with NPPES is 10919 Culebra Rd, San Antonio, TX 78253.
- What is Christina Bui's phone number?
- The practice phone number listed in the NPPES registry for Christina Bui is (210) 688-9257.
- Does Christina Bui accept Medicare?
- Christina Bui is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Christina Bui's NPI active?
- Yes — Christina Bui's NPI (1659558617) is active in the NPPES registry as of the last update on 2013-12-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.