Doctor profile · Federal record
Dr. Stephen Gemmell, PHD
Psychologist (CMS: Clinical Psychologist) · Fayetteville, AR
- NPI 1508816422
- Accepts Medicare
- 27 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
12 E Appleby RD, Ste 101
Fayetteville, AR 727033901
(479) 463-4444
fax (479) 463-4499
Credentials & registration
- NPI registered
- May 2006 — 20 yrs on file
- Profile last updated
- April 25, 2011
- Year of graduation
- 1999 — 27 yrs since
- Specialty taxonomy
- 103T00000X — NUCC code
- State license (1)
- Arkansas #0010P
- Medicaid
- AR #154295719
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1508816422. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,504
Distinct HCPCS
10
Medicare allowed
$102,313
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
96133 |
Evaluation of neuropsychological test, each additional hour | 242 | 129 | $94 | |
96139 |
Administration of psychological or neuropsychological test by technician, each additional 30 minutes | 208 | 119 | $30 | |
96133 |
Evaluation of neuropsychological test, each additional hour | 198 | 98 | $75 | |
96139 |
Administration of psychological or neuropsychological test by technician, each additional 30 minutes | 153 | 95 | $30 | |
96132 |
Evaluation of neuropsychological test, first hour | 145 | 135 | $122 | |
96116 |
Exam of neurobehavioral status, first hour | 136 | 136 | $88 | |
96138 |
Administration of psychological or neuropsychological test by technician, first 30 minutes | 126 | 126 | $29 | |
96116 |
Exam of neurobehavioral status, first hour | 99 | 99 | $77 | |
96132 |
Evaluation of neuropsychological test, first hour | 99 | 98 | $102 | |
96138 |
Administration of psychological or neuropsychological test by technician, first 30 minutes | 98 | 98 | $29 |
In context: peer comparison
Among 1 peers in Fayetteville Psychologist, average services per provider: 150. This provider delivers 10× the peer median.Hospital affiliations
Frequently asked questions
What is Dr. Stephen Gemmell's medical specialty?
Dr. Stephen Gemmell practices Psychologist in Fayetteville, AR.
Where does Dr. Stephen Gemmell practice?
Dr. Stephen Gemmell practices at 12 E Appleby RD, Fayetteville, AR 727033901. Office phone: 4794634444.
What is Dr. Stephen Gemmell's NPI?
Dr. Stephen Gemmell's National Provider Identifier (NPI) is 1508816422, issued by NPPES.
Does Dr. Stephen Gemmell accept Medicare assignment?
Yes. Dr. Stephen Gemmell accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Stephen Gemmell commonly perform?
Top Medicare-reported procedures in 2023: Evaluation of neuropsychological test, each additional hour (HCPCS 96133); Administration of psychological or neuropsychological test by technician (HCPCS 96139); Evaluation of neuropsychological test, each additional hour (HCPCS 96133). Source: CMS Medicare Physician & Other Practitioners file.