Doctor profile · Federal record
Dr. Mathew Mergenthaler, O.D.
Optometrist (CMS: Optometry) · Optometrist · Medford, WI
- NPI 1568874907
- Accepts Medicare
- MIPS 94.3 / 100 · 2023
- 12 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
671 S Gibson St
Medford, WI 544511631
(608) 790-5851
Credentials & registration
- NPI registered
- May 2014 — 12 yrs on file
- Profile last updated
- January 7, 2026
- Year of graduation
- 2014 — 12 yrs since
- Specialty taxonomy
- 152W00000X — NUCC code
- State licenses (2)
- Wisconsin #3359 · Iowa #073539
- Medicaid
- WI #100039841
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1568874907. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
459
Distinct HCPCS
8
Medicare allowed
$43,812
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
92014 |
Established patient complete exam of visual system | 207 | 207 | $122 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 62 | 53 | $86 | |
92250 |
Photography of the retina | 43 | 43 | $36 | |
92133 |
Imaging of optic nerve | 41 | 38 | $35 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 31 | 25 | $122 | |
92004 |
New patient complete exam of visual system | 28 | 28 | $145 | |
92083 |
Exam of visual field with extended testing | 28 | 26 | $59 | |
92134 |
Imaging of retina | 19 | 18 | $39 |
In context: peer comparison
Among 4 peers in Medford Optometrist, average services per provider: 158. This provider delivers 2.9× the peer median.Open Payments
Industry payments received
All-time total
$62
Transactions
2
Manufacturers
2
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Astellas Pharma US INC | 1 | $46.82 | |
| CooperVision INC. | 1 | $15.40 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
238
Patients
47
Total drug cost
$11,571
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Latanoprost | Generic | 114 | 33 | $1,888 |
| Timolol Maleate | Generic | 28 | 0 | $316 |
| Brimonidine Tartrate | Generic | 23 | 0 | $400 |
| Brimonidine Tartrate-Timolol (Brimonidine Tartrate/Timolol) | Brand | 16 | 0 | $3,175 |
| Prednisolone Acetate | Generic | 16 | 14 | $760 |
| Combigan (Brimonidine Tartrate/Timolol) | Brand | 15 | 0 | $4,577 |
| Dorzolamide-Timolol (Dorzolamide Hcl/Timolol Maleat) | Brand | 15 | 0 | $260 |
| Neomycin-Polymyxin-Dexameth (Neomycin/Polymyxin B/Dexametha) | Brand | 11 | 0 | $195 |
Frequently asked questions
What is Dr. Mathew Mergenthaler's medical specialty?
Dr. Mathew Mergenthaler practices Optometrist in Medford, WI.
Where does Dr. Mathew Mergenthaler practice?
Dr. Mathew Mergenthaler practices at 671 S Gibson St, Medford, WI 544511631. Office phone: 6087905851.
What is Dr. Mathew Mergenthaler's NPI?
Dr. Mathew Mergenthaler's National Provider Identifier (NPI) is 1568874907, issued by NPPES.
Does Dr. Mathew Mergenthaler accept Medicare assignment?
Yes. Dr. Mathew Mergenthaler accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mathew Mergenthaler commonly perform?
Top Medicare-reported procedures in 2023: Established patient complete exam of visual system (HCPCS 92014); Established patient office or other outpatient visit (HCPCS 99213); Photography of the retina (HCPCS 92250). Source: CMS Medicare Physician & Other Practitioners file.