Doctor profile · Federal record
Dr. Charles May, MD
Psychiatry Physician (CMS: Psychiatry) · Knoxville, TN
- NPI 1245268531
- Accepts Medicare
- 41 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1111 N Northshore Dr, S490
Knoxville, TN 379194005
(865) 584-0171
fax (865) 584-0174
Credentials & registration
- NPI registered
- June 2006 — 20 yrs on file
- Profile last updated
- July 8, 2007
- Year of graduation
- 1985 — 41 yrs since
- Specialty taxonomy
- 2084P0800X — NUCC code
- State license (1)
- Tennessee #MD0000026115
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1245268531. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
422
Distinct HCPCS
2
Medicare allowed
$32,553
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 285 | 104 | $83 | |
90833 |
Psychotherapy with evaluation and management visit, 30 minutes | 137 | 58 | $66 |
In context: peer comparison
Among 10 peers in Knoxville Psychiatry Physician, average services per provider: 124. This provider delivers 3.4× the peer median.Open Payments
Industry payments received
All-time total
$1,046
Transactions
52
Manufacturers
15
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Otsuka America Pharmaceutical, INC. | 9 | $182.98 | |
| Abbvie INC. | 8 | $132.59 | |
| Corium, LLC | 5 | $121.80 | |
| Janssen Pharmaceuticals, INC | 4 | $116.15 | |
| Neurocrine Biosciences, INC. | 4 | $91.26 | |
| Ironshore Pharmaceuticals INC. | 4 | $85.33 | |
| Axsome Therapeutics, INC. | 4 | $84.54 | |
| Takeda Pharmaceuticals U.S.A., INC. | 4 | $61.34 | |
| Iti, INC. (D/B/A Intra-Cellular Therapies, INC.) | 2 | $46.82 | |
| Lundbeck LLC | 2 | $35.66 | |
| Almatica Pharma LLC | 2 | $28.48 | |
| Supernus Pharmaceuticals, INC. | 1 | $16.92 | |
| Neos Therapeutics, Lp | 1 | $14.58 | |
| Tris Pharma INC | 1 | $13.63 | |
| Alkermes, INC. | 1 | $13.54 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
2,238
Patients
412
Total drug cost
$39,019
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Alprazolam | Generic | 457 | 52 | $2,240 |
| Bupropion Xl (Bupropion Hcl) | Brand | 209 | 43 | $6,816 |
| Clonazepam | Generic | 207 | 30 | $1,323 |
| Trazodone Hcl | Generic | 150 | 39 | $2,465 |
| Diazepam | Generic | 149 | 18 | $884 |
| Duloxetine Hcl | Generic | 145 | 33 | $3,762 |
| Quetiapine Fumarate | Generic | 143 | 35 | $2,860 |
| Lamotrigine | Generic | 139 | 29 | $1,407 |
| Zolpidem Tartrate | Generic | 123 | 17 | $871 |
| Aripiprazole | Generic | 99 | 22 | $9,148 |
Frequently asked questions
What is Dr. Charles May's medical specialty?
Dr. Charles May practices Psychiatry Physician in Knoxville, TN.
Where does Dr. Charles May practice?
Dr. Charles May practices at 1111 N Northshore Dr, Knoxville, TN 379194005. Office phone: 8655840171.
What is Dr. Charles May's NPI?
Dr. Charles May's National Provider Identifier (NPI) is 1245268531, issued by NPPES.
Does Dr. Charles May accept Medicare assignment?
Yes. Dr. Charles May accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Charles May commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Psychotherapy with evaluation and management visit (HCPCS 90833). Source: CMS Medicare Physician & Other Practitioners file.