Doctor profile · Federal record
Dr. Andrea Williams, MD
Family Medicine Physician (CMS: Family Practice) · Oakland, CA
- NPI 1396733135
- Accepts Medicare
- MIPS 83.9 / 100 · 2023
- 38 yrs in practice
- Female
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
1411 E 31St St
Oakland, CA 946021018
(510) 437-8500
fax (510) 437-6567
Credentials & registration
- NPI registered
- October 2005 — 21 yrs on file
- Profile last updated
- April 16, 2014
- Year of graduation
- 1988 — 38 yrs since
- Specialty taxonomy
- 207Q00000X — NUCC code
- State license (1)
- California #G68057
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1396733135. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
21
Distinct HCPCS
1
Medicare allowed
$1,860
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99202 |
New patient office or other outpatient visit, 15-29 minutes | 21 | 21 | $89 |
In context: peer comparison
Among 24 peers in this city , average services per provider: 77. This provider delivers 0.3× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
33
Patients
26
Total drug cost
$1,022
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Amlodipine Besylate | Generic | 19 | 13 | $235 |
| Diclofenac Sodium | Generic | 14 | 13 | $787 |
Frequently asked questions
What is Dr. Andrea Williams's medical specialty?
Dr. Andrea Williams practices Family Medicine Physician in Oakland, CA.
Where does Dr. Andrea Williams practice?
Dr. Andrea Williams practices at 1411 E 31St St, Oakland, CA 946021018. Office phone: 5104378500.
What is Dr. Andrea Williams's NPI?
Dr. Andrea Williams's National Provider Identifier (NPI) is 1396733135, issued by NPPES.
Does Dr. Andrea Williams accept Medicare assignment?
Yes. Dr. Andrea Williams accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Andrea Williams commonly perform?
Top Medicare-reported procedures in 2023: New patient office or other outpatient visit (HCPCS 99202). Source: CMS Medicare Physician & Other Practitioners file.