Doctor profile · Federal record
Dr. Thomas Grischow, O.D.
Optometrist (CMS: Optometry) · Warren, OH
- NPI 1932132818
- Accepts Medicare
- MIPS 100.0 / 100 · 2023
- 33 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 3 locations .
- Primary practice
-
4060 N River RD Ne
Warren, OH 444841039
(330) 746-7691 - Additional location
-
10 Dutton Dr, Suite 200
Youngstown, OH 445021818
fax (330) 743-8368 - Additional location
-
1075 W Western Reserve RD
Poland, OH 445143541 - Mailing address
-
10 Dutton Dr, Suite 200
Youngstown, OH 445021818
Credentials & registration
- NPI registered
- July 2006 — 20 yrs on file
- Profile last updated
- January 14, 2025
- Year of graduation
- 1993 — 33 yrs since
- Specialty taxonomy
- 152W00000X — NUCC code
- State license (1)
- Ohio #OPT004457
- Medicaid
- OH #0958281
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1932132818. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,186
Distinct HCPCS
9
Medicare allowed
$106,465
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
92014 |
Established patient complete exam of visual system | 390 | 388 | $120 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 267 | 231 | $87 | |
92134 |
Imaging of retina | 127 | 109 | $38 | |
92133 |
Imaging of optic nerve | 117 | 115 | $34 | |
92083 |
Exam of visual field with extended testing | 103 | 103 | $59 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 79 | 76 | $123 | |
92004 |
New patient complete exam of visual system | 74 | 74 | $140 | |
76514 |
Ultrasound scan of cornea to determine thickness | 16 | 16 | $10 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 13 | 13 | $103 |
In context: peer comparison
Among 5 peers in Warren Optometrist, average services per provider: 192. This provider delivers 6.2× the peer median.Open Payments
Industry payments received
All-time total
$581
Transactions
24
Manufacturers
8
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Abbvie INC. | 9 | $183.04 | |
| Alcon Vision LLC | 6 | $139.11 | |
| Bausch & Lomb Americas INC. | 3 | $119.68 | |
| CooperVision INC. | 2 | $49.99 | |
| Tarsus Pharmaceuticals, INC. | 1 | $25.63 | |
| Johnson & Johnson Vision Care, INC. | 1 | $25.45 | |
| Johnson & Johnson Surgical Vision, INC. | 1 | $19.47 | |
| Thea Pharma INC. | 1 | $18.37 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,460
Patients
499
Total drug cost
$180,143
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Latanoprost | Generic | 685 | 212 | $19,792 |
| Timolol Maleate | Generic | 205 | 60 | $3,578 |
| Lumigan (Bimatoprost) | Brand | 80 | 23 | $42,619 |
| Brimonidine Tartrate | Generic | 74 | 24 | $4,975 |
| Brimonidine Tartrate-Timolol (Brimonidine Tartrate/Timolol) | Brand | 73 | 19 | $26,336 |
| Neomycin-Polymyxin-Dexameth (Neomycin/Polymyxin B/Dexametha) | Brand | 73 | 64 | $1,230 |
| Prednisolone Acetate | Generic | 54 | 33 | $2,272 |
| Combigan (Brimonidine Tartrate/Timolol) | Brand | 49 | 17 | $22,334 |
| Alphagan P (Brimonidine Tartrate) | Brand | 29 | 0 | $7,799 |
| Dorzolamide Hcl | Generic | 27 | 0 | $1,028 |
Frequently asked questions
What is Dr. Thomas Grischow's medical specialty?
Dr. Thomas Grischow practices Optometrist in Warren, OH.
Where does Dr. Thomas Grischow practice?
Dr. Thomas Grischow practices at 4060 N River RD Ne, Warren, OH 444841039. Office phone: 3307467691.
What is Dr. Thomas Grischow's NPI?
Dr. Thomas Grischow's National Provider Identifier (NPI) is 1932132818, issued by NPPES.
Does Dr. Thomas Grischow accept Medicare assignment?
Yes. Dr. Thomas Grischow accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Thomas Grischow 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); Imaging of retina (HCPCS 92134). Source: CMS Medicare Physician & Other Practitioners file.