Doctor profile · Federal record

Dr. William Alex, MD

Surgery Physician · Surgical Critical Care Physician · Trauma Surgery Physician · Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Riverside, CA

  • NPI 1558300681
  • MIPS 63.0 / 100 · 2023
  • 20 yrs on file
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
4000 14Th St, Ste 306
Riverside, CA 925014083
(951) 682-2036
fax (951) 682-2942

Credentials & registration

NPPES · NUCC
NPI registered
June 2006 — 20 yrs on file
Profile last updated
March 19, 2010
Specialty taxonomy
208600000X — NUCC code
State license (1)
California #G86010
Medicaid
CA #00G860100

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1558300681. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
123
Distinct HCPCS
4
Medicare allowed
$13,933
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 57 28 $81
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 32 17 $121
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 22 22 $176
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 12 12 $132

In context: peer comparison

Among 11 peers in this city , average services per provider: 35. This provider delivers 3.5× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. William Alex's medical specialty?
Dr. William Alex practices Surgery Physician in Riverside, CA.
Where does Dr. William Alex practice?
Dr. William Alex practices at 4000 14Th St, Riverside, CA 925014083. Office phone: 9516822036.
What is Dr. William Alex's NPI?
Dr. William Alex's National Provider Identifier (NPI) is 1558300681, issued by NPPES.
What procedures does Dr. William Alex commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Initial hospital care with moderate level of medical decision making (HCPCS 99223). Source: CMS Medicare Physician & Other Practitioners file.