Doctor profile · Federal record
Dr. Matthew Krewer, OD
Optometrist (CMS: Optometry) · Optometrist · Waterloo, IA
- NPI 1003269721
- Accepts Medicare
- 10 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
909 E San Marnan Dr
Waterloo, IA 507025611
(319) 233-2020 - Additional location
-
1409 W 1St St
Cedar Falls, IA 506132115
(319) 268-2020
Credentials & registration
- NPI registered
- July 2016 — 10 yrs on file
- Profile last updated
- January 31, 2023
- Year of graduation
- 2016 — 10 yrs since
- Specialty taxonomy
- 152W00000X — NUCC code
- State licenses (2)
- Iowa #097765 · Washington #OD60679692
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1003269721. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
294
Distinct HCPCS
7
Medicare allowed
$32,344
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
92004 |
New patient complete exam of visual system | 93 | 93 | $140 | |
92014 |
Established patient complete exam of visual system | 58 | 58 | $118 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 53 | 48 | $84 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 46 | 40 | $119 | |
92134 |
Imaging of retina | 18 | 18 | $37 | |
99212 |
Established patient office or other outpatient visit, 10-19 minutes | 15 | 14 | $52 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 11 | 11 | $103 |
In context: peer comparison
Among 4 peers in this city , average services per provider: 77. This provider delivers 3.8× the peer median.Open Payments
Industry payments received
All-time total
$143
Transactions
6
Manufacturers
4
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Astellas Pharma US Inc | 2 | $59.60 | |
| Tarsus Pharmaceuticals, Inc. | 2 | $44.22 | |
| Regeneron Healthcare Solutions, Inc. | 1 | $23.71 | |
| Bausch & Lomb Americas Inc. | 1 | $15.03 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
68
Patients
40
Total drug cost
$1,162
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Neomycin-Polymyxin-Dexameth (Neomycin/Polymyxin B/Dexametha) | Brand | 29 | 26 | $358 |
| Ofloxacin | Generic | 14 | 14 | $253 |
| Timolol Maleate | Generic | 14 | 0 | $148 |
| Prednisolone Acetate | Generic | 11 | 0 | $404 |
Frequently asked questions
What is Dr. Matthew Krewer's medical specialty?
Dr. Matthew Krewer practices Optometrist in Waterloo, IA.
Where does Dr. Matthew Krewer practice?
Dr. Matthew Krewer practices at 909 E San Marnan Dr, Waterloo, IA 507025611. Office phone: 3192332020.
What is Dr. Matthew Krewer's NPI?
Dr. Matthew Krewer's National Provider Identifier (NPI) is 1003269721, issued by NPPES.
Does Dr. Matthew Krewer accept Medicare assignment?
Yes. Dr. Matthew Krewer accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Matthew Krewer commonly perform?
Top Medicare-reported procedures in 2023: New patient complete exam of visual system (HCPCS 92004); Established patient complete exam of visual system (HCPCS 92014); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.