Doctor profile · Federal record
Dr. David Ernst, O.D.
Optometrist (CMS: Optometry) · O Fallon, IL
- NPI 1306076518
- Accepts Medicare
- MIPS 84.9 / 100 · 2023
- 17 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
735 Insight Ave
O Fallon, IL 622692193
(618) 628-2903
fax (618) 628-2913
Credentials & registration
- NPI registered
- July 2009 — 17 yrs on file
- Profile last updated
- December 11, 2019
- Year of graduation
- 2009 — 17 yrs since
- Specialty taxonomy
- 152W00000X — NUCC code
- State license (1)
- Illinois #046010290
- Medicaid
- IL #046010290
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1306076518. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
7,154
Distinct HCPCS
10
Medicare allowed
$70,185
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
66984 |
Removal of cataract with insertion of prosthetic lens | 6,210 | 52 | $1 | |
92250 |
Photography of the retina | 326 | 297 | $37 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 173 | 167 | $90 | |
92014 |
Established patient complete exam of visual system | 119 | 115 | $123 | |
99212 |
Established patient office or other outpatient visit, 10-19 minutes | 74 | 63 | $56 | |
92083 |
Exam of visual field with extended testing | 72 | 63 | $60 | |
92133 |
Imaging of optic nerve | 59 | 51 | $33 | |
92012 |
Established patient problem focused exam of visual system | 56 | 50 | $88 | |
92134 |
Imaging of retina | 35 | 33 | $39 | |
92004 |
New patient complete exam of visual system | 15 | 15 | $146 |
In context: peer comparison
Among 1 peers in this city , average services per provider: 650. This provider delivers 11× the peer median.Open Payments
Industry payments received
All-time total
$468
Transactions
21
Manufacturers
7
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Bausch & Lomb Americas Inc. | 11 | $232.40 | |
| Johnson & Johnson Vision Care, Inc. | 3 | $62.82 | |
| Oyster Point Pharma, Inc. | 2 | $60.76 | |
| Astellas Pharma US Inc | 2 | $44.56 | |
| Tarsus Pharmaceuticals, Inc. | 1 | $28.68 | |
| LKC Technologies, Inc. | 1 | $24.92 | |
| Alcon Vision LLC | 1 | $14.29 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
99
Patients
22
Total drug cost
$1,677
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Latanoprost | Generic | 79 | 22 | $1,089 |
| Brimonidine Tartrate | Generic | 20 | 0 | $588 |
Frequently asked questions
What is Dr. David Ernst's medical specialty?
Dr. David Ernst practices Optometrist in O Fallon, IL.
Where does Dr. David Ernst practice?
Dr. David Ernst practices at 735 Insight Ave, O Fallon, IL 622692193. Office phone: 6186282903.
What is Dr. David Ernst's NPI?
Dr. David Ernst's National Provider Identifier (NPI) is 1306076518, issued by NPPES.
Does Dr. David Ernst accept Medicare assignment?
Yes. Dr. David Ernst accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. David Ernst commonly perform?
Top Medicare-reported procedures in 2023: Removal of cataract with insertion of prosthetic lens (HCPCS 66984); Photography of the retina (HCPCS 92250); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.