Psychiatry · Chattanooga, TN
NPI
1588772545
Since 2006
Specialty
Psychiatry
Code 2084P0800X
Group practices
2
Medicare group memberships
Hospitals
1
Hospital affiliations
7345 Courage Way
Chattanooga, TN, 37421
Phone (423) 648-9290
Groups this clinician bills Medicare through
Medicare paid, 2024
$135K
2,313 services
Medicare patients, 2024
303
Average age 64
Drug cost, 2024
$658K
3,907 prescriptions
Company payments, 2025
$3,129
From 16 companies
Procedures and visits billed to Original Medicare, 2024
In 2024, the most common Medicare service billed by Oliver L Gregory was code 99214 (office e&m - established), 446 times for 184 patients. In total Oliver L Gregory billed 2,313 services in 20 codes, and Medicare paid $135K.
| Code |
|---|
Official US government data: the national provider registry and Medicare enrollment records, linked by NPI. Last update of this record: 2026-07-30.
| Setting |
|---|
| Services |
|---|
| Patients |
|---|
| Paid per service |
|---|
| Medicare paid |
|---|
| 99214 Office E&M - Established | Office | 446 | 184 | $77.47 | $35K |
| 96136 Behavioral Health Services | Office | 330 | 149 | $27.82 | $9,180 |
| 96132 Behavioral Health Services | Office | 330 | 149 | $81.58 | $27K |
| 96127 Behavioral Health Services | Office | 279 | 103 | $2.94 | $820 |
| 90833 Psychotherapy - Nongroup | Office | 155 | 77 | $49.14 | $7,616 |
| 99215 Office E&M - Established | Office | 154 | 82 | $112.12 | $17K |
| 99232 Hospital E&M - Subsequent | Facility | 153 | 53 | $52.27 | $7,997 |
| 99231 Hospital E&M - Subsequent | Facility | 99 | 47 | $33.29 | $3,296 |
| 99213 Office E&M - Established | Office | 94 | 53 | $51.19 | $4,812 |
| 99223 Hospital E&M - Initial | Facility | 58 | 52 | $109.44 | $6,348 |
| 99238 Hospital Discharge Management | Facility | 49 | 40 | $52.06 | $2,551 |
| 99233 Hospital E&M - Subsequent | Facility | 44 | 33 | $79.98 | $3,519 |
| 90792 Psychotherapy - Nongroup | Office | 39 | 39 | $117.56 | $4,585 |
| 90785 Behavioral Health Services | Office | 26 | 19 | $10.50 | $273 |
| 99215 Office E&M - Established | Facility | 24 | 12 | $99.91 | $2,398 |
By year: 2022 $106K for 1,648 services; 2023 $114K for 1,639 services; 2024 $135K for 2,313 services.
Medicare prescription drug claims, 2024
In 2024, the drug Oliver L Gregory prescribed most often to Medicare patients was Trazodone Hcl, with 319 prescriptions and refills. In total Oliver L Gregory wrote 3,907 Medicare prescriptions that cost $658K.
| Drug | Claims | 30-day fills | Patients | Cost |
|---|---|---|---|---|
| Trazodone Hcl Generic | 319 | 578 | 121 | $3,443 |
| Clonazepam Generic | 220 | 220 | 57 | $880 |
| Lamotrigine Generic | 203 | 451 | 64 | $3,085 |
| Duloxetine Hcl Generic | 164 | 316 | 62 | $4,534 |
| Quetiapine Fumarate Generic | 163 | 270 | 53 | $2,579 |
| Gabapentin Generic | 161 | 255 | 46 | $2,785 |
| Buspirone Hcl Generic | 147 | 301 | 61 | $3,914 |
| Fluoxetine Hcl Generic | 145 | 299 | 41 | $1,068 |
| Mirtazapine Generic | 135 | 248 | 55 | $3,784 |
| Doxepin Hcl Generic | 123 | 233 | 49 | $2,001 |
| Bupropion Xl Bupropion Hcl | 123 | 278 | 48 | $4,035 |
| Belsomra Suvorexant | 104 | 127 | 25 | $54K |
| Lorazepam Generic | 91 | 91 | 30 | $603 |
| Desvenlafaxine Succinate Er Desvenlafaxine Succinate | 84 | 192 | 32 | $10K |
| Aripiprazole Generic | 84 | 150 | 35 | $3,730 |
Brand drugs: 364 claims; generic drugs: 3,543 claims.
Money and other things of value reported by the companies
In 2025, drug and medical device companies paid Oliver L Gregory $3,129 ($3,129 in general payments such as food, travel and fees) from 16 companies. The largest payer was Neurocrine BioSciences, Inc. with $537.
| Company | Payments | Amount |
|---|---|---|
| Neurocrine BioSciences, Inc. NBIX | 19 | $537 |
| Vanda Pharmaceuticals Inc. VNDA | 13 | $418 |
| ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) JNJ | 12 | $356 |
| Alkermes, Inc. ALKS | 18 | $318 |
| E.R. Squibb & Sons, L.L.C. BMY | 13 | $283 |
| Axsome Therapeutics, Inc. AXSM | 12 | $211 |
| Abbvie Inc. ABBV | 15 | $210 |
| Otsuka America Pharmaceutical, Inc. 4578.T | 13 | $201 |
| Teva Pharmaceuticals USA, Inc. TEVA | 7 | $165 |
| Janssen Pharmaceuticals, Inc JNJ | 5 | $111 |
Official US government data on Original Medicare services, Medicare prescription drug plans and the payments drug and device companies must report. Services with fewer than 11 patients and drugs with fewer than 11 claims are not published. Procedure codes are shown by number with their public category.