Doctor profile · Federal record

Dr. David Wu, MD

Rheumatology Physician (CMS: Rheumatology) · Walnut Creek, CA

  • NPI 1023015484
  • Accepts Medicare
  • MIPS 90.3 / 100 · 2023
  • 28 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
120 la Casa Via, Ste 204
Walnut Creek, CA 945983007
(925) 210-1050
fax (925) 210-1082

Credentials & registration

NPPES · NUCC
NPI registered
June 2005 — 21 yrs on file
Profile last updated
October 25, 2021
Year of graduation
1998 — 28 yrs since
Specialty taxonomy
207RR0500X — NUCC code
State license (1)
California #A83347

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1023015484. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,397
Distinct HCPCS
9
Medicare allowed
$185,160
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 886 290 $150
99442 Telephone medical discussion with physician, 11-20 minutes 160 93 $108
96372 Injection of drug or substance under skin or into muscle 99 11 $17
96365 Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less 69 14 $85
99204 New patient office or other outpatient visit, 45-59 minutes 56 56 $195
96413 Administration of chemotherapy into vein, 1 hour or less 46 11 $174
96415 Administration of chemotherapy into vein, each additional hour 46 11 $36
99205 New patient office or other outpatient visit, 60-74 minutes 23 23 $256
77080 Dxa bone density measurement of hip, pelvis, spine 12 12 $50

In context: peer comparison

Among 6 peers in this city , average services per provider: 731. This provider delivers 1.9× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$4,363
Transactions
185
Manufacturers
15
Payer (manufacturer) Industry Txns Amount
Amgen Inc. 33 $728.69
Janssen Biotech, Inc. 33 $572.21
ABBVIE INC. 22 $428.19
UCB, Inc. 20 $337.10
Fresenius Kabi USA, LLC 12 $238.34
PFIZER INC. 10 $220.78
AstraZeneca Pharmaceuticals LP 11 $198.13
E.R. Squibb & Sons, L.L.C. 8 $158.33
Kiniksa Pharmaceuticals International, plc 6 $144.60
Organon Llc 4 $135.75
Novartis Pharmaceuticals Corporation 6 $135.03
Octapharma USA, Inc. 5 $133.50
Alexion Pharmaceuticals, Inc. 4 $125.77
SCILEX PHARMACEUTICALS INC. 6 $114.69
GlaxoSmithKline, LLC. 5 $109.64

By nature of payment

Food and Beverage
$4,344
Education
$19

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,665
Patients
296
Total drug cost
$34,524
Drug Type Claims Patients Total cost
Prednisone Generic 560 109 $5,946
Methotrexate (Methotrexate Sodium) Brand 214 48 $4,598
Hydroxychloroquine Sulfate Generic 207 40 $6,656
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 123 27 $4,228
Gabapentin Generic 100 22 $2,425
Allopurinol Generic 94 24 $1,566
Tramadol Hcl Generic 79 12 $894
Alendronate Sodium Generic 72 14 $649
Sulfasalazine Generic 42 0 $1,514
Leflunomide Generic 37 0 $3,044

Frequently asked questions

Auto-generated from federal data
What is Dr. David Wu's medical specialty?
Dr. David Wu practices Rheumatology Physician in Walnut Creek, CA.
Where does Dr. David Wu practice?
Dr. David Wu practices at 120 la Casa Via, Walnut Creek, CA 945983007. Office phone: 9252101050.
What is Dr. David Wu's NPI?
Dr. David Wu's National Provider Identifier (NPI) is 1023015484, issued by NPPES.
Does Dr. David Wu accept Medicare assignment?
Yes. Dr. David Wu accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. David Wu commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Telephone medical discussion with physician (HCPCS 99442); Injection of drug or substance under skin or into muscle (HCPCS 96372). Source: CMS Medicare Physician & Other Practitioners file.