Doctor profile · Federal record

Dr. Michael Krzyzaniak, M.D.

Trauma Surgery Physician (CMS: Emergency Medicine) · Independent Medical Examiner Physician · Surgical Critical Care Physician · San Diego, CA

  • NPI 1164626594
  • Accepts Medicare
  • 21 yrs in practice
  • Licensed in 2 states
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
550 Washington St Ste 641
San Diego, CA 921032229
(619) 299-3100

Credentials & registration

NPPES · NUCC
NPI registered
June 2007 — 19 yrs on file
Profile last updated
April 8, 2024
Year of graduation
2005 — 21 yrs since
Specialty taxonomy
2086S0127X — NUCC code
State licenses (2)
California #A146490 · Wisconsin #50424

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1164626594. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
41
Distinct HCPCS
3
Medicare allowed
$5,435
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 17 16 $82
99239 Hospital discharge day management, more than 30 minutes 12 12 $119
99291 Critical care, first 30-74 minutes 12 12 $218

In context: peer comparison

Among 5 peers in this city , average services per provider: 42. This provider delivers 1.0× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Michael Krzyzaniak's medical specialty?
Dr. Michael Krzyzaniak practices Trauma Surgery Physician in San Diego, CA.
Where does Dr. Michael Krzyzaniak practice?
Dr. Michael Krzyzaniak practices at 550 Washington St Ste 641, San Diego, CA 921032229. Office phone: 6192993100.
What is Dr. Michael Krzyzaniak's NPI?
Dr. Michael Krzyzaniak's National Provider Identifier (NPI) is 1164626594, issued by NPPES.
Does Dr. Michael Krzyzaniak accept Medicare assignment?
Yes. Dr. Michael Krzyzaniak accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Michael Krzyzaniak commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Hospital discharge day management (HCPCS 99239); Critical care (HCPCS 99291). Source: CMS Medicare Physician & Other Practitioners file.