Jonathan Welch, MD
NPI 1407024227 · Ophthalmology Physician · San Marcos, TX
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jonathan Welch, MD is a Ophthalmology Physician provider in San Marcos, TX (NPI 1407024227).
Provider details
- NPI number
- 1407024227
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- TL2008 (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
4,082 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 | 1,396 | $121 |
| Imaging of Optic Nerve92133 | 534 | $33 |
| Exam of Visual Field With Extended Testing92083 | 446 | $61 |
| Imaging of Retina92134 | 405 | $38 |
| Established Patient Problem Focused Exam of Visual System92012 | 390 | $86 |
| Measurement of Corneal Curvature and Depth of Eye92136 | 229 | $38 |
| Removal of Cataract With Insertion of Prosthetic Lens |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 24 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 660 | 144 |
| Prednisolone Acetate | 237 | 185 |
| Fluorometholone | 222 | 129 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 154 | 38 |
| Moxifloxacin Hclbrand: Moxifloxacin | 144 | 86 |
| Timolol Maleate | 135 | 37 |
| Cyclosporine | 128 | 51 |
| Ketorolac Tromethamine |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$663 across 29 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
- 2008-02-14
- Last updated
- 2020-10-28
- Certified
- 2020-10-28
Frequently asked questions
- What is Jonathan Welch's NPI number?
- Jonathan Welch's National Provider Identifier (NPI) is 1407024227, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jonathan Welch's specialty?
- Jonathan Welch is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Jonathan Welch located?
- Jonathan Welch's practice location on file with NPPES is 2430 S Ih 35 Ste 106, San Marcos, TX 78666-5921.
- What is Jonathan Welch's phone number?
- The practice phone number listed in the NPPES registry for Jonathan Welch is (512) 353-1300.
- Does Jonathan Welch accept Medicare?
- Jonathan Welch is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jonathan Welch's NPI active?
- Yes — Jonathan Welch's NPI (1407024227) is active in the NPPES registry as of the last update on 2020-10-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.