William Sponsel, M.D.
NPI 1396754958 · Ophthalmology Physician · San Antonio, TX
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Sponsel, M.D. is a Ophthalmology Physician provider in San Antonio, TX (NPI 1396754958).
Provider details
- NPI number
- 1396754958
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- J7208 (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
19 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
1,127 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) |
|---|---|---|
| Exam of Visual Field With Extended Testing92083 | 347 | $60 |
| Established Patient Problem Focused Exam of Visual System92012 | 327 | $84 |
| Established Patient Complete Exam of Visual System92014 | 178 | $119 |
| Imaging of Optic Nerve92133 | 63 | $34 |
| Photography of the Retina92250 | 57 | $35 |
| Exam of the Internal Drainage System of Eye92020 | 32 | $26 |
| Injection of Drug Or Substance Into Membrane Covering Eyeball |
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 |
|---|---|---|
| Dorzolamide Hcl | 377 | 99 |
| Prednisolone Acetate | 259 | 111 |
| Brimonidine Tartrate | 211 | 46 |
| Latanoprost | 175 | 50 |
| Moxifloxacin Hclbrand: Moxifloxacin | 164 | 66 |
| Ketorolac Tromethamine | 141 | 42 |
| Timolol Maleate | 97 | 27 |
| Neomycin/Polymyxin B/Dexametha |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$270 across 3 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
- 2006-08-05
- Last updated
- 2023-04-10
- Certified
- 2023-04-10
Frequently asked questions
- What is William Sponsel's NPI number?
- William Sponsel's National Provider Identifier (NPI) is 1396754958, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Sponsel's specialty?
- William Sponsel is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is William Sponsel located?
- William Sponsel's practice location on file with NPPES is 5210 Thousand Oaks Dr Ste 1244, San Antonio, TX 78233-6974.
- What is William Sponsel's phone number?
- The practice phone number listed in the NPPES registry for William Sponsel is (210) 223-9292.
- Does William Sponsel accept Medicare?
- William Sponsel is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Sponsel's NPI active?
- Yes — William Sponsel's NPI (1396754958) is active in the NPPES registry as of the last update on 2023-04-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.