Doctor profile · Federal record

Dr. Harold Hsu, M.D.

Internal Medicine Physician (CMS: Internal Medicine) · Rosemead, CA

  • NPI 1770508111
  • Accepts Medicare
  • 44 yrs in practice
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
8622 Garvey Ave, Suite 103
Rosemead, CA 917703293
(626) 280-6898
fax (626) 280-6899

Credentials & registration

NPPES · NUCC
NPI registered
July 2006 — 20 yrs on file
Profile last updated
February 27, 2020
Year of graduation
1982 — 44 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
California #A 51859
Medicaid
CA #00A518590

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1770508111. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
2,524
Distinct HCPCS
10
Medicare allowed
$214,126
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 1,469 300 $98
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 224 26 $83
36415 Insertion of needle into vein for collection of blood sample 189 143 $7
99308 Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes 177 24 $79
G0008 Administration of influenza virus vaccine 116 116 $33
90674 Influenza vaccine, quadrivalent derived from cell cultures, preservative and antibiotic free 114 114 $33
99204 New patient office or other outpatient visit, 45-59 minutes 47 47 $180
99238 Hospital discharge day management, 30 minutes or less 36 28 $86
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 35 27 $182
G0180 Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and 34 23 $58

In context: peer comparison

Among 7 peers in Rosemead Internal Medicine Physician, average services per provider: 291. This provider delivers 8.7× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$106
Transactions
4
Manufacturers
3
Payer (manufacturer) Industry Txns Amount
Novo Nordisk INC 2 $51.32
Ironwood Pharmaceuticals, INC 1 $28.72
Boehringer Ingelheim Pharmaceuticals, INC. 1 $25.75

By nature of payment

Food and Beverage
$106

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
18,831
Patients
2,595
Total drug cost
$982,119
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 3,268 397 $34,241
Amlodipine Besylate Generic 2,346 284 $19,166
Olmesartan Medoxomil Generic 1,428 160 $27,309
Omeprazole Generic 1,411 205 $13,110
Gabapentin Generic 1,095 174 $12,258
Farxiga (Dapagliflozin Propanediol) Brand 1,059 125 $635,370
Telmisartan Generic 1,033 131 $25,727
Metoprolol Succinate Generic 1,022 127 $9,925
Fluocinonide Generic 1,009 183 $85,679
Rosuvastatin Calcium Generic 970 132 $17,676

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Harold Hsu's medical specialty?
Dr. Harold Hsu practices Internal Medicine Physician in Rosemead, CA.
Where does Dr. Harold Hsu practice?
Dr. Harold Hsu practices at 8622 Garvey Ave, Rosemead, CA 917703293. Office phone: 6262806898.
What is Dr. Harold Hsu's NPI?
Dr. Harold Hsu's National Provider Identifier (NPI) is 1770508111, issued by NPPES.
Does Dr. Harold Hsu accept Medicare assignment?
Yes. Dr. Harold Hsu accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Harold Hsu commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Insertion of needle into vein for collection of blood sample (HCPCS 36415). Source: CMS Medicare Physician & Other Practitioners file.