Doctor profile · Federal record
Dr. Marilyn Keen, PA-C
Physician Assistant · Surgical Physician Assistant · Columbia, SC
- NPI 1902127491
- MIPS 83.0 / 100 · 2023
- 16 yrs on file
- Female
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
4500 8Th Division RD
Columbia, SC 292075700
(803) 751-0531 - Additional location
-
146 E Hospital Dr Ste 400
West Columbia, SC 291694800
(803) 936-3300
fax (803) 936-7735 - Mailing address
-
Po Box 6069
West Columbia, SC 291716069
Credentials & registration
- NPI registered
- June 2010 — 16 yrs on file
- Profile last updated
- July 10, 2025
- Specialty taxonomy
- 363A00000X — NUCC code
- State license (1)
- South Carolina #3188
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1902127491. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
128
Distinct HCPCS
4
Medicare allowed
$8,460
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99231 |
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 49 | 38 | $41 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 31 | 31 | $107 | |
99238 |
Hospital discharge day management, 30 minutes or less | 28 | 28 | $66 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 20 | 17 | $65 |
In context: peer comparison
Among 53 peers in Columbia Physician Assistant, average services per provider: 117. This provider delivers 1.1× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
18
Patients
18
Total drug cost
$62
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 18 | 18 | $62 |
Frequently asked questions
What is Dr. Marilyn Keen's medical specialty?
Dr. Marilyn Keen practices Physician Assistant in Columbia, SC.
Where does Dr. Marilyn Keen practice?
Dr. Marilyn Keen practices at 4500 8Th Division RD, Columbia, SC 292075700. Office phone: 8037510531.
What is Dr. Marilyn Keen's NPI?
Dr. Marilyn Keen's National Provider Identifier (NPI) is 1902127491, issued by NPPES.
What procedures does Dr. Marilyn Keen commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with straightforward or low level of medical decision making (HCPCS 99231); Initial hospital care with straightforward or low-level medical decision making (HCPCS 99222); Hospital discharge day management (HCPCS 99238). Source: CMS Medicare Physician & Other Practitioners file.