Doctor profile · Federal record
Dr. Diana Lau, MD
Rheumatology Physician (CMS: Rheumatology) · Internal Medicine Physician · Woodland, CA
- NPI 1770506537
- Accepts Medicare
- MIPS 90.2 / 100 · 2023
- 37 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
632 W Gibson RD
Woodland, CA 95695
(530) 666-1631
Credentials & registration
- NPI registered
- July 2006 — 20 yrs on file
- Profile last updated
- May 7, 2008
- Year of graduation
- 1989 — 37 yrs since
- Specialty taxonomy
- 207RR0500X — NUCC code
- State license (1)
- California #G77103
- Medicaid
- CA #00G771030
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1770506537. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
2,782
Distinct HCPCS
5
Medicare allowed
$190,086
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
J0897 |
Injection, denosumab, 1 mg | 1,620 | 19 | $23 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 943 | 372 | $135 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 111 | 93 | $95 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 77 | 77 | $176 | |
96372 |
Injection of drug or substance under skin or into muscle | 31 | 23 | $15 |
In context: peer comparison
Among 2 peers in Woodland Rheumatology Physician, average services per provider: 406. This provider delivers 6.9× the peer median.Open Payments
Industry payments received
All-time total
$1,282
Transactions
12
Manufacturers
8
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Abbvie INC. | 3 | $258.05 | |
| Janssen Biotech, INC. | 2 | $245.91 | |
| Ucb, INC. | 2 | $166.00 | |
| Amgen INC. | 1 | $137.46 | |
| Alexion Pharmaceuticals, INC. | 1 | $127.25 | |
| Lilly USA, LLC | 1 | $123.28 | |
| GlaxoSmithKline, LLC. | 1 | $119.14 | |
| Boehringer Ingelheim Pharmaceuticals, INC. | 1 | $104.97 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
3,164
Patients
748
Total drug cost
$3,554,278
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Prednisone | Generic | 640 | 179 | $7,586 |
| Methotrexate (Methotrexate Sodium) | Brand | 617 | 149 | $23,298 |
| Hydroxychloroquine Sulfate | Generic | 596 | 150 | $33,298 |
| Enbrel Sureclick (Etanercept) | Brand | 244 | 29 | $2,010,830 |
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 158 | 21 | $3,482 |
| Leflunomide | Generic | 157 | 39 | $14,235 |
| Humira(Cf) Pen (Adalimumab) | Brand | 135 | 16 | $1,079,076 |
| Diclofenac Sodium | Generic | 130 | 45 | $3,765 |
| Gabapentin | Generic | 102 | 31 | $2,583 |
| Tramadol Hcl | Generic | 90 | 21 | $608 |
Hospital affiliations
Frequently asked questions
What is Dr. Diana Lau's medical specialty?
Dr. Diana Lau practices Rheumatology Physician in Woodland, CA.
Where does Dr. Diana Lau practice?
Dr. Diana Lau practices at 632 W Gibson RD, Woodland, CA 95695. Office phone: 5306661631.
What is Dr. Diana Lau's NPI?
Dr. Diana Lau's National Provider Identifier (NPI) is 1770506537, issued by NPPES.
Does Dr. Diana Lau accept Medicare assignment?
Yes. Dr. Diana Lau accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Diana Lau commonly perform?
Top Medicare-reported procedures in 2023: Injection, denosumab, 1 mg (HCPCS J0897); 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.