Doctor profile · Federal record
Dr. Gregory Williams
Clinical Psychologist · Apison, TN
- NPI 1215916804
- Accepts Medicare
- 32 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
11014 Apison Pike
Apison, TN 373020000
(423) 899-2204
fax (423) 698-4045 - Mailing address
-
Po Box 80894
Chattanooga, TN 374147894
Credentials & registration
- NPI registered
- January 2006 — 20 yrs on file
- Profile last updated
- October 10, 2008
- Year of graduation
- 1994 — 32 yrs since
- Specialty taxonomy
- 103TC0700X — NUCC code
- State license (1)
- Tennessee #P0000001910
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1215916804. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
210
Distinct HCPCS
1
Medicare allowed
$24,099
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
90837 |
Psychotherapy, 1 hour | 210 | 12 | $115 |
In context: peer comparison
Among 1 peers in this city , average services per provider: 210. This provider delivers 1.0× the peer median.Frequently asked questions
What is Dr. Gregory Williams's medical specialty?
Dr. Gregory Williams practices Clinical Psychologist in Apison, TN.
Where does Dr. Gregory Williams practice?
Dr. Gregory Williams practices at 11014 Apison Pike, Apison, TN 373020000. Office phone: 4238992204.
What is Dr. Gregory Williams's NPI?
Dr. Gregory Williams's National Provider Identifier (NPI) is 1215916804, issued by NPPES.
Does Dr. Gregory Williams accept Medicare assignment?
Yes. Dr. Gregory Williams accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Gregory Williams commonly perform?
Top Medicare-reported procedures in 2023: Psychotherapy (HCPCS 90837). Source: CMS Medicare Physician & Other Practitioners file.