Psychiatry · Durham, NC
NPI
1265452270
Since 2006
Specialty
Psychiatry
Code 2084P0800X
Group practices
1
Medicare group memberships
Hospitals
0
Hospital affiliations
3713 University Dr, Ste B
Durham, NC, 27707
Phone (919) 401-6212
Groups this clinician bills Medicare through
Medicare paid, 2024
$77K
1,546 services
Medicare patients, 2024
497
Average age 52
Drug cost, 2024
$1.6M
12,032 prescriptions
Company payments, 2025
$2,651
From 16 companies
Procedures and visits billed to Original Medicare, 2024
In 2024, the most common Medicare service billed by Mark C Chandler was code 99308 (snf e&m), 804 times for 330 patients. In total Mark C Chandler billed 1,546 services in 7 codes, and Medicare paid $77K.
| Code |
|---|
Official US government data: the national provider registry and Medicare enrollment records, linked by NPI. Last update of this record: 2018-03-07.
| Setting |
|---|
| Services |
|---|
| Patients |
|---|
| Paid per service |
|---|
| Medicare paid |
|---|
| 99308 SNF E&M | Office | 804 | 330 | $44.51 | $36K |
| 99213 Office E&M - Established | Office | 713 | 185 | $54.20 | $39K |
By year: 2022 $95K for 1,940 services; 2023 $81K for 1,621 services; 2024 $77K for 1,546 services.
Medicare prescription drug claims, 2024
In 2024, the drug Mark C Chandler prescribed most often to Medicare patients was Risperidone, with 767 prescriptions and refills. In total Mark C Chandler wrote 12,032 Medicare prescriptions that cost $1.6M.
| Drug | Claims | 30-day fills | Patients | Cost |
|---|---|---|---|---|
| Risperidone Generic | 767 | 811 | 62 | $14K |
| Clonazepam Generic | 633 | 668 | 66 | $7,966 |
| Lorazepam Generic | 612 | 623 | 70 | $7,133 |
| Aripiprazole Generic | 567 | 626 | 55 | $32K |
| Olanzapine Generic | 497 | 521 | 48 | $8,746 |
| Duloxetine Hcl Generic | 475 | 634 | 53 | $8,159 |
| Quetiapine Fumarate Generic | 350 | 368 | 28 | $8,090 |
| Benztropine Mesylate Generic | 349 | 355 | 33 | $4,288 |
| Lamotrigine Generic | 344 | 414 | 36 | $3,918 |
| Trazodone Hcl Generic | 300 | 359 | 37 | $3,504 |
| Clonidine Hcl Generic | 300 | 309 | 30 | $1,847 |
| Gabapentin Generic | 296 | 359 | 35 | $3,843 |
| Fluvoxamine Maleate Generic | 286 | 287 | 24 | $21K |
| Escitalopram Oxalate Generic | 269 | 322 | 32 | $5,403 |
| Hydroxyzine Hcl Generic | 267 | 273 | 39 | $3,711 |
Brand drugs: 1,115 claims; generic drugs: 10,917 claims; opioid claims: 11.
Money and other things of value reported by the companies
In 2025, drug and medical device companies paid Mark C Chandler $2,651 ($2,651 in general payments such as food, travel and fees) from 16 companies. The largest payer was Alkermes, Inc. with $511.
| Company | Payments | Amount |
|---|---|---|
| Alkermes, Inc. ALKS | 36 | $511 |
| Vanda Pharmaceuticals Inc. VNDA | 24 | $419 |
| Otsuka America Pharmaceutical, Inc. 4578.T | 17 | $384 |
| Abbvie Inc. ABBV | 21 | $329 |
| Teva Pharmaceuticals USA, Inc. TEVA | 10 | $176 |
| Janssen Pharmaceuticals, Inc JNJ | 10 | $166 |
| ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) JNJ | 13 | $154 |
| E.R. Squibb & Sons, L.L.C. BMY | 8 | $135 |
| Lundbeck LLC | 5 | $118 |
| Neurocrine BioSciences, Inc. NBIX | 5 | $87.43 |
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.