Doctor profile · Federal record
Dr. Gregory Fields, PHD
Clinical Psychologist · Sacramento, CA
- NPI 1902852783
- Accepts Medicare
- 29 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
2825 J St, Suite 435
Sacramento, CA 958164300
(916) 425-3177
Credentials & registration
- NPI registered
- May 2006 — 20 yrs on file
- Profile last updated
- August 12, 2013
- Year of graduation
- 1997 — 29 yrs since
- Specialty taxonomy
- 103TC0700X — NUCC code
- State license (1)
- California #PSY16113
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1902852783. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
590
Distinct HCPCS
8
Medicare allowed
$46,962
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
96137 |
Administration of psychological or neuropsychological test, each additional 30 minutes | 214 | 60 | $42 | |
96133 |
Evaluation of neuropsychological test, each additional hour | 175 | 39 | $103 | |
96136 |
Administration of psychological or neuropsychological test, first 30 minutes | 61 | 60 | $45 | |
96132 |
Evaluation of neuropsychological test, first hour | 39 | 39 | $134 | |
96116 |
Exam of neurobehavioral status, first hour | 35 | 35 | $96 | |
90791 |
Psychiatric diagnostic evaluation | 22 | 21 | $181 | |
96130 |
Evaluation of psychological test, first hour | 22 | 21 | $124 | |
96131 |
Evaluation of psychological test, each additional hour | 22 | 21 | $89 |
In context: peer comparison
Among 8 peers in Sacramento Clinical Psychologist, average services per provider: 137. This provider delivers 4.3× the peer median.Frequently asked questions
What is Dr. Gregory Fields's medical specialty?
Dr. Gregory Fields practices Clinical Psychologist in Sacramento, CA.
Where does Dr. Gregory Fields practice?
Dr. Gregory Fields practices at 2825 J St, Sacramento, CA 958164300. Office phone: 9164253177.
What is Dr. Gregory Fields's NPI?
Dr. Gregory Fields's National Provider Identifier (NPI) is 1902852783, issued by NPPES.
Does Dr. Gregory Fields accept Medicare assignment?
Yes. Dr. Gregory Fields accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Gregory Fields commonly perform?
Top Medicare-reported procedures in 2023: Administration of psychological or neuropsychological test (HCPCS 96137); Evaluation of neuropsychological test, each additional hour (HCPCS 96133); Administration of psychological or neuropsychological test (HCPCS 96136). Source: CMS Medicare Physician & Other Practitioners file.