Doctor profile · Federal record

Dr. Hanhsing Wu, MD

Hematology & Oncology Physician (CMS: Hematology/Oncology) · Mountain View, CA

  • NPI 1114034832
  • Accepts Medicare
  • 30 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
701 E El Camino Real
Mountain View, CA 940402833
(408) 739-6000
Mailing address
2350 W El Camino Real, 2Nd Floor
Mountain View, CA 940406201

Credentials & registration

NPPES · NUCC
NPI registered
August 2006 — 20 yrs on file
Profile last updated
February 27, 2017
Year of graduation
1996 — 30 yrs since
Specialty taxonomy
207RH0003X — NUCC code
State license (1)
California #A63128

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1114034832. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
93,663
Distinct HCPCS
10
Medicare allowed
$2,151,264
HCPCS Description Services Patients Avg allowed
J9271 Injection, pembrolizumab, 1 mg 16,000 23 $54
J9267 Injection, paclitaxel, 1 mg 11,865 19 $0
J3262 Injection, tocilizumab, 1 mg 11,720 11 $6
Q0138 Injection, ferumoxytol, for treatment of iron deficiency anemia, 1 mg (non-esrd use) 11,220 12 $1
J1453 Injection, fosaprepitant, 1 mg 11,100 28 $0
J1459 Injection, immune globulin (privigen), intravenous, non-lyophilized (e.g., liquid), 500 mg 8,310 20 $47
J0129 Injection, abatacept, 10 mg (code may be used for medicare when drug administered under the direct supervision of a physician, not for use when drug is self administered) 4,775 13 $42
Q5119 Injection, rituximab-pvvr, biosimilar, (ruxience), 10 mg 2,930 19 $27
J0897 Injection, denosumab, 1 mg 2,520 23 $23
J1745 Injection, infliximab, excludes biosimilar, 10 mg 2,350 18 $33

In context: peer comparison

Among 4 peers in Mountain View Hematology & Oncology Physician, average services per provider: 1,813. This provider delivers 52× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$31
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Eisai INC. 1 $31.41

By nature of payment

Food and Beverage
$31

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
674
Patients
222
Total drug cost
$720,731
Drug Type Claims Patients Total cost
Anastrozole Generic 177 53 $5,689
Alendronate Sodium Generic 101 27 $1,462
Letrozole Generic 68 22 $5,089
Tamoxifen Citrate Generic 61 19 $2,140
Prochlorperazine Maleate Generic 42 36 $848
Prednisone Generic 40 23 $245
Dexamethasone Generic 30 17 $646
Ondansetron Hcl Generic 29 25 $437
Tagrisso (Osimertinib Mesylate) Brand 24 0 $454,919
Mirtazapine Generic 19 0 $538

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Hanhsing Wu's medical specialty?
Dr. Hanhsing Wu practices Hematology & Oncology Physician in Mountain View, CA.
Where does Dr. Hanhsing Wu practice?
Dr. Hanhsing Wu practices at 701 E El Camino Real, Mountain View, CA 940402833. Office phone: 4087396000.
What is Dr. Hanhsing Wu's NPI?
Dr. Hanhsing Wu's National Provider Identifier (NPI) is 1114034832, issued by NPPES.
Does Dr. Hanhsing Wu accept Medicare assignment?
Yes. Dr. Hanhsing Wu accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Hanhsing Wu commonly perform?
Top Medicare-reported procedures in 2023: Injection, pembrolizumab, 1 mg (HCPCS J9271); Injection, paclitaxel, 1 mg (HCPCS J9267); Injection, tocilizumab, 1 mg (HCPCS J3262). Source: CMS Medicare Physician & Other Practitioners file.