Doctor profile · Federal record

Dr. Gary Szymanski, M.D.

Emergency Medicine Physician (CMS: Emergency Medicine) · Warren, MI

  • NPI 1376622563
  • Accepts Medicare
  • MIPS 77.3 / 100 · 2023
  • 35 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
11800 E 12 Mile RD
Warren, MI 480933472
(586) 573-5059

Credentials & registration

NPPES · NUCC
NPI registered
November 2006 — 20 yrs on file
Profile last updated
July 8, 2007
Year of graduation
1991 — 35 yrs since
Specialty taxonomy
207P00000X — NUCC code
State license (1)
Michigan #GS058341

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1376622563. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
173
Distinct HCPCS
4
Medicare allowed
$23,741
HCPCS Description Services Patients Avg allowed
99284 Emergency department visit with moderate level of medical decision making 84 83 $125
99285 Emergency department visit with high level of medical decision making 51 48 $183
99213 Established patient office or other outpatient visit, 20-29 minutes 27 27 $91
99214 Established patient office or other outpatient visit, 30-39 minutes 11 11 $129

In context: peer comparison

Among 14 peers in this city , average services per provider: 71. This provider delivers 2.4× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
152
Patients
152
Total drug cost
$779
Drug Type Claims Patients Total cost
Naproxen Generic 43 43 $133
Prednisone Generic 36 36 $63
Clindamycin Hcl Generic 30 30 $364
Azithromycin Generic 22 22 $100
Cephalexin Generic 21 21 $118

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Gary Szymanski's medical specialty?
Dr. Gary Szymanski practices Emergency Medicine Physician in Warren, MI.
Where does Dr. Gary Szymanski practice?
Dr. Gary Szymanski practices at 11800 E 12 Mile RD, Warren, MI 480933472. Office phone: 5865735059.
What is Dr. Gary Szymanski's NPI?
Dr. Gary Szymanski's National Provider Identifier (NPI) is 1376622563, issued by NPPES.
Does Dr. Gary Szymanski accept Medicare assignment?
Yes. Dr. Gary Szymanski accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Gary Szymanski commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with moderate level of medical decision making (HCPCS 99284); Emergency department visit with high level of medical decision making (HCPCS 99285); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.