Doctor profile · Federal record
Dr. Nathan Williams
Adult Medicine Physician · Thermal, CA
- NPI 1548345473
- 20 yrs on file
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
66735 Martinez St
Thermal, CA 922749007
(800) 717-4476 - Mailing address
-
12197 White Rock Dr
Rancho Cucamonga, CA 917399079
Credentials & registration
- NPI registered
- October 2006 — 20 yrs on file
- Profile last updated
- July 8, 2007
- Specialty taxonomy
- 207QA0505X — NUCC code
- State license (1)
- California #A79720
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1548345473. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
66
Distinct HCPCS
3
Medicare allowed
$7,620
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99203 |
New patient office or other outpatient visit, 30-44 minutes | 27 | 27 | $116 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 21 | 16 | $133 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 18 | 17 | $94 |
In context: peer comparison
Among 1 peers in Thermal Adult Medicine Physician, average services per provider: 22. This provider delivers 3.0× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
63
Patients
0
Total drug cost
$801
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Lisinopril | Generic | 17 | 0 | $127 |
| Omeprazole | Generic | 16 | 0 | $242 |
| Atorvastatin Calcium | Generic | 15 | 0 | $347 |
| Metformin Hcl | Generic | 15 | 0 | $84 |
Frequently asked questions
What is Dr. Nathan Williams's medical specialty?
Dr. Nathan Williams practices Adult Medicine Physician in Thermal, CA.
Where does Dr. Nathan Williams practice?
Dr. Nathan Williams practices at 66735 Martinez St, Thermal, CA 922749007. Office phone: 8007174476.
What is Dr. Nathan Williams's NPI?
Dr. Nathan Williams's National Provider Identifier (NPI) is 1548345473, issued by NPPES.
What procedures does Dr. Nathan Williams commonly perform?
Top Medicare-reported procedures in 2023: New patient office or other outpatient visit (HCPCS 99203); Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.