Doctor profile · Federal record
Dr. Hoi Ying Lau, DO
Internal Medicine Physician (CMS: Internal Medicine) · Oakland, CA
- NPI 1659675015
- Accepts Medicare
- 18 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1411 E 31St St
Oakland, CA 946021018
(510) 437-4800
Credentials & registration
- NPI registered
- December 2010 — 16 yrs on file
- Profile last updated
- May 2, 2019
- Year of graduation
- 2008 — 18 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- California #20A10954
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1659675015. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
884
Distinct HCPCS
9
Medicare allowed
$100,561
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99309 |
Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes | 336 | 153 | $122 | |
99307 |
Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 10 minutes | 170 | 44 | $46 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 115 | 59 | $132 | |
99306 |
Initial nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes | 66 | 60 | $206 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 54 | 53 | $144 | |
99231 |
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 44 | 34 | $55 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 40 | 38 | $193 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 40 | 32 | $88 | |
99308 |
Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes | 19 | 16 | $85 |
In context: peer comparison
Among 78 peers in Oakland Internal Medicine Physician, average services per provider: 326. This provider delivers 2.7× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
223
Patients
0
Total drug cost
$3,381
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 35 | 0 | $547 |
| Metformin Hcl | Generic | 33 | 0 | $242 |
| Levetiracetam | Generic | 22 | 0 | $752 |
| Escitalopram Oxalate | Generic | 19 | 0 | $277 |
| Losartan Potassium | Generic | 19 | 0 | $182 |
| Amlodipine Besylate | Generic | 17 | 0 | $182 |
| Gabapentin | Generic | 16 | 0 | $302 |
| Mirtazapine | Generic | 14 | 0 | $100 |
| Divalproex Sodium | Generic | 13 | 0 | $368 |
| Lisinopril | Generic | 12 | 0 | $182 |
Frequently asked questions
What is Dr. Hoi Ying Lau's medical specialty?
Dr. Hoi Ying Lau practices Internal Medicine Physician in Oakland, CA.
Where does Dr. Hoi Ying Lau practice?
Dr. Hoi Ying Lau practices at 1411 E 31St St, Oakland, CA 946021018. Office phone: 5104374800.
What is Dr. Hoi Ying Lau's NPI?
Dr. Hoi Ying Lau's National Provider Identifier (NPI) is 1659675015, issued by NPPES.
Does Dr. Hoi Ying Lau accept Medicare assignment?
Yes. Dr. Hoi Ying Lau accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Hoi Ying Lau commonly perform?
Top Medicare-reported procedures in 2023: Subsequent nursing facility care with moderate level of medical decision making (HCPCS 99309); Subsequent nursing facility care with straightforward level of medical decision making (HCPCS 99307); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233). Source: CMS Medicare Physician & Other Practitioners file.