Doctor profile · Federal record
Dr. Gregory Trolley, M.D.
Neurology Physician (CMS: Neurology) · Houston, TX
- NPI 1609019652
- Accepts Medicare
- MIPS 75.0 / 100 · 2023
- 19 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
2002 Holcombe Blvd
Houston, TX 770304211
(713) 791-1414
Credentials & registration
- NPI registered
- April 2009 — 17 yrs on file
- Year of graduation
- 2007 — 19 yrs since
- Specialty taxonomy
- 2084N0400X — NUCC code
- State license (1)
- Texas #UNSURE
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1609019652. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,620
Distinct HCPCS
6
Medicare allowed
$226,996
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 1,107 | 747 | $121 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 348 | 348 | $159 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 68 | 61 | $85 | |
95816 |
Measurement of brain wave activity (eeg), awake and drowsy | 63 | 60 | $364 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 20 | 19 | $172 | |
95819 |
Measurement of brain wave activity (eeg), awake and asleep | 14 | 14 | $422 |
In context: peer comparison
Among 79 peers in Houston Neurology Physician, average services per provider: 372. This provider delivers 4.4× the peer median.Open Payments
Industry payments received
All-time total
$1,314
Transactions
70
Manufacturers
15
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Pfizer INC. | 16 | $234.01 | |
| Eisai INC. | 9 | $201.51 | |
| Lilly USA, LLC | 3 | $158.13 | |
| Lundbeck LLC | 9 | $148.53 | |
| Novartis Pharmaceuticals Corporation | 15 | $142.94 | |
| Genentech USA, INC. | 3 | $77.60 | |
| Teva Pharmaceuticals USA, INC. | 3 | $77.46 | |
| InSightec,INC | 3 | $43.46 | |
| Octapharma USA, INC. | 2 | $40.00 | |
| Abbvie INC. | 2 | $36.52 | |
| Catalyst Pharmaceuticals, INC. | 1 | $27.99 | |
| Jazz Pharmaceuticals INC. | 1 | $23.09 | |
| Kyowa Kirin, INC. | 1 | $23.03 | |
| Medtronic, INC. | 1 | $20.00 | |
| Biogen, INC. | 1 | $16.87 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
6,346
Patients
2,095
Total drug cost
$223,707
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Donepezil Hcl | Generic | 1,243 | 417 | $16,286 |
| Memantine Hcl | Generic | 1,069 | 350 | $43,103 |
| Gabapentin | Generic | 795 | 294 | $22,555 |
| Carbidopa-Levodopa (Carbidopa/Levodopa) | Brand | 757 | 211 | $48,615 |
| Levetiracetam | Generic | 668 | 203 | $29,210 |
| Topiramate | Generic | 316 | 115 | $5,180 |
| Primidone | Generic | 239 | 75 | $6,426 |
| Pregabalin | Generic | 215 | 91 | $11,438 |
| Clonazepam | Generic | 200 | 60 | $1,683 |
| Zonisamide | Generic | 172 | 59 | $8,610 |
Frequently asked questions
What is Dr. Gregory Trolley's medical specialty?
Dr. Gregory Trolley practices Neurology Physician in Houston, TX.
Where does Dr. Gregory Trolley practice?
Dr. Gregory Trolley practices at 2002 Holcombe Blvd, Houston, TX 770304211. Office phone: 7137911414.
What is Dr. Gregory Trolley's NPI?
Dr. Gregory Trolley's National Provider Identifier (NPI) is 1609019652, issued by NPPES.
Does Dr. Gregory Trolley accept Medicare assignment?
Yes. Dr. Gregory Trolley accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Gregory Trolley commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); New patient office or other outpatient visit (HCPCS 99204); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.