Doctor profile · Federal record

Dr. Tsang Lau, M.D.

Internal Medicine Physician · Internal Medicine Physician · Orange, CA

  • NPI 1700100732
  • 16 yrs on file
  • Licensed in 2 states
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
625 the City Dr S
Orange, CA 928684924
(714) 202-2330
Mailing address
700 N Brand Blvd Ste 1400
Glendale, CA 912034263

Credentials & registration

NPPES · NUCC
NPI registered
March 2010 — 16 yrs on file
Profile last updated
September 26, 2024
Specialty taxonomy
207R00000X — NUCC code
State licenses (2)
California #A149776 · New York #267410

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1700100732. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
429
Distinct HCPCS
3
Medicare allowed
$47,700
HCPCS Description Services Patients Avg allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 198 71 $125
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 134 55 $83
99239 Hospital discharge day management, more than 30 minutes 97 93 $121

In context: peer comparison

Among 42 peers in this city , average services per provider: 103. This provider delivers 4.2× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
91
Patients
87
Total drug cost
$7,156
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 26 26 $271
Levofloxacin Generic 22 22 $94
Pantoprazole Sodium Generic 16 14 $112
Prednisone Generic 15 14 $42
Eliquis (Apixaban) Brand 12 11 $6,636

Frequently asked questions

Auto-generated from federal data
What is Dr. Tsang Lau's medical specialty?
Dr. Tsang Lau practices Internal Medicine Physician in Orange, CA.
Where does Dr. Tsang Lau practice?
Dr. Tsang Lau practices at 625 the City Dr S, Orange, CA 928684924. Office phone: 7142022330.
What is Dr. Tsang Lau's NPI?
Dr. Tsang Lau's National Provider Identifier (NPI) is 1700100732, issued by NPPES.
What procedures does Dr. Tsang Lau commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Hospital discharge day management (HCPCS 99239). Source: CMS Medicare Physician & Other Practitioners file.