Doctor profile · Federal record
Dr. Mark Chapman, LICSW
Clinical Social Worker · Addiction (Substance Use Disorder) Counselor · Marshall, MN
- NPI 1679559819
- 21 yrs on file
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1212 E College Dr
Marshall, MN 562582010
(507) 532-3236
fax (507) 532-0240
Credentials & registration
- NPI registered
- December 2005 — 21 yrs on file
- Profile last updated
- April 3, 2018
- Specialty taxonomy
- 1041C0700X — NUCC code
- State licenses (2)
- Texas #32645 · Texas #4857
- Medicaid
- TX #164078101
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1679559819. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
149
Distinct HCPCS
2
Medicare allowed
$16,815
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
90837 |
Psychotherapy, 1 hour | 127 | 13 | $110 | |
90791 |
Psychiatric diagnostic evaluation | 22 | 11 | $131 |
In context: peer comparison
Among 1 peers in this city , average services per provider: 74. This provider delivers 2.0× the peer median.Frequently asked questions
What is Dr. Mark Chapman's medical specialty?
Dr. Mark Chapman practices Clinical Social Worker in Marshall, MN.
Where does Dr. Mark Chapman practice?
Dr. Mark Chapman practices at 1212 E College Dr, Marshall, MN 562582010. Office phone: 5075323236.
What is Dr. Mark Chapman's NPI?
Dr. Mark Chapman's National Provider Identifier (NPI) is 1679559819, issued by NPPES.
What procedures does Dr. Mark Chapman commonly perform?
Top Medicare-reported procedures in 2023: Psychotherapy (HCPCS 90837); Psychiatric diagnostic evaluation (HCPCS 90791). Source: CMS Medicare Physician & Other Practitioners file.