Doctor profile · Federal record
Dr. Tammy Grabreck, PH.D.
Clinical Neuropsychologist (CMS: Clinical Psychologist) · Redding, CA
- NPI 1922411396
- Accepts Medicare
- 13 yrs in practice
- Female
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
1640 Tehama St, Suite C
Redding, CA 960011681
(530) 710-1070
Credentials & registration
- NPI registered
- June 2014 — 12 yrs on file
- Profile last updated
- December 27, 2014
- Year of graduation
- 2013 — 13 yrs since
- Specialty taxonomy
- 103G00000X — NUCC code
- State license (1)
- California #PSY 26823
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1922411396. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,073
Distinct HCPCS
6
Medicare allowed
$67,579
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
96139 |
Administration of psychological or neuropsychological test by technician, each additional 30 minutes | 594 | 35 | $37 | |
96133 |
Evaluation of neuropsychological test, each additional hour | 286 | 39 | $101 | |
96132 |
Evaluation of neuropsychological test, first hour | 76 | 41 | $132 | |
96138 |
Administration of psychological or neuropsychological test by technician, first 30 minutes | 69 | 35 | $36 | |
96116 |
Exam of neurobehavioral status, first hour | 26 | 26 | $95 | |
96121 |
Exam of neurobehavioral status, each additional hour | 22 | 22 | $77 |
In context: peer comparison
Among 1 peers in this city , average services per provider: 178. This provider delivers 6.0× the peer median.Frequently asked questions
What is Dr. Tammy Grabreck's medical specialty?
Dr. Tammy Grabreck practices Clinical Neuropsychologist in Redding, CA.
Where does Dr. Tammy Grabreck practice?
Dr. Tammy Grabreck practices at 1640 Tehama St, Redding, CA 960011681. Office phone: 5307101070.
What is Dr. Tammy Grabreck's NPI?
Dr. Tammy Grabreck's National Provider Identifier (NPI) is 1922411396, issued by NPPES.
Does Dr. Tammy Grabreck accept Medicare assignment?
Yes. Dr. Tammy Grabreck accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Tammy Grabreck commonly perform?
Top Medicare-reported procedures in 2023: Administration of psychological or neuropsychological test by technician (HCPCS 96139); Evaluation of neuropsychological test, each additional hour (HCPCS 96133); Evaluation of neuropsychological test, first hour (HCPCS 96132). Source: CMS Medicare Physician & Other Practitioners file.