Doctor profile · Federal record
Dr. Mark Walker, O.D.
Optometrist (CMS: Optometry) · Elkhart, IN
- NPI 1972731461
- Accepts Medicare
- MIPS 90.4 / 100 · 2023
- 17 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
2746 Old US 20 W
Elkhart, IN 465141364
(574) 293-3545
fax (574) 522-0599
Credentials & registration
- NPI registered
- June 2009 — 17 yrs on file
- Profile last updated
- November 8, 2012
- Year of graduation
- 2009 — 17 yrs since
- Specialty taxonomy
- 152W00000X — NUCC code
- State license (1)
- Indiana #18003605A
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1972731461. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,974
Distinct HCPCS
9
Medicare allowed
$153,098
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
92014 |
Established patient complete exam of visual system | 505 | 466 | $118 | |
92133 |
Imaging of optic nerve | 329 | 306 | $34 | |
92012 |
Established patient problem focused exam of visual system | 230 | 158 | $84 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 222 | 214 | $119 | |
92134 |
Imaging of retina | 221 | 178 | $38 | |
92250 |
Photography of the retina | 215 | 181 | $33 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 116 | 89 | $83 | |
92083 |
Exam of visual field with extended testing | 93 | 85 | $55 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 43 | 43 | $155 |
In context: peer comparison
Among 4 peers in Elkhart Optometrist, average services per provider: 154. This provider delivers 13× the peer median.Open Payments
Industry payments received
All-time total
$532
Transactions
12
Manufacturers
8
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Apellis Pharmaceuticals, INC. | 1 | $124.99 | |
| Biotissue Holdings INC. | 2 | $105.92 | |
| Ocular Therapeutix, INC. | 1 | $90.95 | |
| Tarsus Pharmaceuticals, INC. | 3 | $69.76 | |
| Glaukos Corporation | 1 | $68.29 | |
| Bausch & Lomb Americas INC. | 2 | $37.69 | |
| Alcon Vision LLC | 1 | $18.89 | |
| Dompe US, INC. | 1 | $15.39 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
897
Patients
286
Total drug cost
$229,786
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Latanoprost | Generic | 248 | 75 | $7,104 |
| Dorzolamide-Timolol (Dorzolamide Hcl/Timolol Maleat) | Brand | 140 | 38 | $4,232 |
| Timolol Maleate | Generic | 95 | 31 | $996 |
| Lumigan (Bimatoprost) | Brand | 87 | 30 | $56,679 |
| Prednisolone Acetate | Generic | 61 | 41 | $3,095 |
| Restasis (Cyclosporine) | Brand | 38 | 24 | $65,750 |
| Acyclovir | Generic | 33 | 0 | $535 |
| Travoprost | Generic | 28 | 0 | $6,991 |
| Fluorometholone | Generic | 27 | 13 | $1,522 |
| Tobramycin-Dexamethasone (Tobramycin/Dexamethasone) | Brand | 27 | 21 | $1,496 |
Frequently asked questions
What is Dr. Mark Walker's medical specialty?
Dr. Mark Walker practices Optometrist in Elkhart, IN.
Where does Dr. Mark Walker practice?
Dr. Mark Walker practices at 2746 Old US 20 W, Elkhart, IN 465141364. Office phone: 5742933545.
What is Dr. Mark Walker's NPI?
Dr. Mark Walker's National Provider Identifier (NPI) is 1972731461, issued by NPPES.
Does Dr. Mark Walker accept Medicare assignment?
Yes. Dr. Mark Walker accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mark Walker commonly perform?
Top Medicare-reported procedures in 2023: Established patient complete exam of visual system (HCPCS 92014); Imaging of optic nerve (HCPCS 92133); Established patient problem focused exam of visual system (HCPCS 92012). Source: CMS Medicare Physician & Other Practitioners file.