Doctor profile · Federal record
Dr. Oliver Gregory, M.D.
Psychiatry Physician (CMS: Psychiatry) · Child & Adolescent Psychiatry Physician · Chattanooga, TN
- NPI 1588772545
- Accepts Medicare
- MIPS 27.5 / 100 · 2023
- 38 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
7345 Courage Way, Ste 101
Chattanooga, TN 374211555
(423) 648-9290
fax (423) 499-2308
Credentials & registration
- NPI registered
- August 2006 — 20 yrs on file
- Profile last updated
- January 3, 2019
- Year of graduation
- 1988 — 38 yrs since
- Specialty taxonomy
- 2084P0800X — NUCC code
- State license (1)
- Tennessee #19965
- Medicaid
- TN #3870075
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1588772545. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,424
Distinct HCPCS
10
Medicare allowed
$140,970
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 266 | 126 | $113 | |
96132 |
Evaluation of neuropsychological test, first hour | 262 | 125 | $121 | |
96136 |
Administration of psychological or neuropsychological test, first 30 minutes | 248 | 122 | $39 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 151 | 58 | $165 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 129 | 76 | $81 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 98 | 38 | $73 | |
99231 |
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 70 | 35 | $46 | |
90833 |
Psychotherapy with evaluation and management visit, 30 minutes | 54 | 34 | $66 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 49 | 42 | $162 | |
90792 |
Psychiatric diagnostic evaluation with medical services | 37 | 37 | $186 |
In context: peer comparison
Among 6 peers in Chattanooga Psychiatry Physician, average services per provider: 98. This provider delivers 15× the peer median.Open Payments
Industry payments received
All-time total
$2,036
Transactions
90
Manufacturers
15
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Neurocrine Biosciences, INC. | 9 | $227.46 | |
| Supernus Pharmaceuticals, INC. | 4 | $215.07 | |
| Alkermes, INC. | 10 | $203.67 | |
| Teva Pharmaceuticals USA, INC. | 13 | $199.36 | |
| Abbvie INC. | 12 | $198.52 | |
| Corium, LLC | 11 | $145.66 | |
| Lundbeck LLC | 6 | $145.65 | |
| E.R. Squibb & Sons, L.L.C. | 3 | $138.91 | |
| Iti, INC. (D/B/A Intra-Cellular Therapies, INC.) | 6 | $96.96 | |
| Vanda Pharmaceuticals INC. | 3 | $92.49 | |
| Otsuka America Pharmaceutical, INC. | 4 | $81.90 | |
| Jazz Pharmaceuticals INC. | 2 | $68.35 | |
| Axsome Therapeutics, INC. | 2 | $52.44 | |
| Takeda Pharmaceuticals U.S.A., INC. | 3 | $43.42 | |
| Noven Therapeutics, LLC | 2 | $42.24 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
2,366
Patients
811
Total drug cost
$112,929
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Trazodone Hcl | Generic | 330 | 142 | $6,036 |
| Quetiapine Fumarate | Generic | 233 | 64 | $5,829 |
| Clonazepam | Generic | 223 | 62 | $1,101 |
| Gabapentin | Generic | 204 | 54 | $5,295 |
| Lamotrigine | Generic | 188 | 50 | $4,030 |
| Doxepin Hcl | Generic | 179 | 63 | $2,948 |
| Buspirone Hcl | Generic | 140 | 59 | $5,060 |
| Fluoxetine Hcl | Generic | 131 | 46 | $1,635 |
| Mirtazapine | Generic | 129 | 53 | $4,159 |
| Bupropion Xl (Bupropion Hcl) | Brand | 128 | 46 | $5,373 |
Hospital affiliations
Frequently asked questions
What is Dr. Oliver Gregory's medical specialty?
Dr. Oliver Gregory practices Psychiatry Physician in Chattanooga, TN.
Where does Dr. Oliver Gregory practice?
Dr. Oliver Gregory practices at 7345 Courage Way, Chattanooga, TN 374211555. Office phone: 4236489290.
What is Dr. Oliver Gregory's NPI?
Dr. Oliver Gregory's National Provider Identifier (NPI) is 1588772545, issued by NPPES.
Does Dr. Oliver Gregory accept Medicare assignment?
Yes. Dr. Oliver Gregory accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Oliver Gregory commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Evaluation of neuropsychological test, first hour (HCPCS 96132); Administration of psychological or neuropsychological test (HCPCS 96136). Source: CMS Medicare Physician & Other Practitioners file.