David Ernst, O.D.
NPI 1306076518 · Optometrist · O Fallon, IL
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
David Ernst, O.D. is a Optometrist provider in O Fallon, IL (NPI 1306076518).
Provider details
- NPI number
- 1306076518
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- O.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 046010290 (IL)
Specialties & taxonomies
Eye and Vision Services Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
16 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
8,148 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) |
|---|---|---|
| Removal of Cataract With Insertion of Prosthetic Lens66984 | 6,660 | $1 |
| Photography of the Retina92250 | 399 | $35 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 277 | $16 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 237 | $89 |
| Exam of Visual Field With Extended Testing92083 | 133 | $59 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 84 | 27 |
| Prednisolone Acetate | 20 | 14 |
| Brimonidine Tartrate | 16 | — |
| Timolol Maleate | 13 | — |
| Neomycin/Polymyxin B/Dexamethabrand: Neomycin-Polymyxin-Dexameth | 12 | — |
| Cyclosporinebrand: Restasis | 12 | — |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 11 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$468 across 21 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
- 2009-07-22
- Last updated
- 2019-12-11
- Certified
- 2019-12-11
Frequently asked questions
- What is David Ernst's NPI number?
- David Ernst's National Provider Identifier (NPI) is 1306076518, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is David Ernst's specialty?
- David Ernst is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is David Ernst located?
- David Ernst's practice location on file with NPPES is 735 Insight Ave, O Fallon, IL 62269-2193.
- What is David Ernst's phone number?
- The practice phone number listed in the NPPES registry for David Ernst is (618) 628-2903.
- Does David Ernst accept Medicare?
- David Ernst is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is David Ernst's NPI active?
- Yes — David Ernst's NPI (1306076518) is active in the NPPES registry as of the last update on 2019-12-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.