Doctor profile · Federal record

Dr. Alfonso Siu, MD

Hospitalist Physician · Student in an Organized Health Care Education/Training Program · Waddell, AZ

  • NPI 1619505492
  • 6 yrs on file
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
17936 W Las Palmaritas Dr
Waddell, AZ 853557812
(404) 740-4807

Credentials & registration

NPPES · NUCC
NPI registered
March 2020 — 6 yrs on file
Profile last updated
September 29, 2023
Specialty taxonomy
208M00000X — NUCC code
State license (1)
Minnesota #75236

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1619505492. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
14
Distinct HCPCS
1
Medicare allowed
$2,325
HCPCS Description Services Patients Avg allowed
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 14 14 $166

In context: peer comparison

Among 1 peers in Waddell Hospitalist Physician, average services per provider: 14. This provider delivers 1.0× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$33
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Melinta Therapeutics, LLC 1 $33.34

By nature of payment

Food and Beverage
$33

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
51
Patients
0
Total drug cost
$1,005
Drug Type Claims Patients Total cost
Gabapentin Generic 14 0 $397
Losartan Potassium Generic 13 0 $237
Metoprolol Succinate Generic 13 0 $265
Amlodipine Besylate Generic 11 0 $105

Frequently asked questions

Auto-generated from federal data
What is Dr. Alfonso Siu's medical specialty?
Dr. Alfonso Siu practices Hospitalist Physician in Waddell, AZ.
Where does Dr. Alfonso Siu practice?
Dr. Alfonso Siu practices at 17936 W Las Palmaritas Dr, Waddell, AZ 853557812. Office phone: 4047404807.
What is Dr. Alfonso Siu's NPI?
Dr. Alfonso Siu's National Provider Identifier (NPI) is 1619505492, issued by NPPES.
What procedures does Dr. Alfonso Siu commonly perform?
Top Medicare-reported procedures in 2023: Initial hospital care with moderate level of medical decision making (HCPCS 99223). Source: CMS Medicare Physician & Other Practitioners file.