Doctor profile · Federal record

Dr. Aaron Gries, MD

Anesthesiology Physician (CMS: Anesthesiology) · Pain Medicine (Anesthesiology) Physician · Evansville, IN

  • NPI 1255377321
  • Accepts Medicare
  • 27 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
3700 Washington Ave, St Marys Medical Center Anesthesia Dept
Evansville, IN 47750
(812) 485-4000
Mailing address
Po Box 3276
Evansville, IN 477313276

Credentials & registration

NPPES · NUCC
NPI registered
June 2006 — 20 yrs on file
Profile last updated
May 26, 2011
Year of graduation
1999 — 27 yrs since
Specialty taxonomy
207L00000X — NUCC code
State license (1)
Indiana #01056077A
Medicaid (2)
IN #200444590 · KY #64071772

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1255377321. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
355
Distinct HCPCS
6
Medicare allowed
$36,026
HCPCS Description Services Patients Avg allowed
00142 Anesthesia for lens surgery 228 223 $100
00731 Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope 46 43 $130
00104 Anesthesia for electroshock therapy 40 18 $94
36620 Insertion of artery tube for blood sampling or infusion through skin 16 16 $41
64447 Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) 13 13 $59
00145 Anesthesia for retinal surgery 12 12 $174

In context: peer comparison

Among 14 peers in Evansville Anesthesiology Physician, average services per provider: 34. This provider delivers 10× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Aaron Gries's medical specialty?
Dr. Aaron Gries practices Anesthesiology Physician in Evansville, IN.
Where does Dr. Aaron Gries practice?
Dr. Aaron Gries practices at 3700 Washington Ave, Evansville, IN 47750. Office phone: 8124854000.
What is Dr. Aaron Gries's NPI?
Dr. Aaron Gries's National Provider Identifier (NPI) is 1255377321, issued by NPPES.
Does Dr. Aaron Gries accept Medicare assignment?
Yes. Dr. Aaron Gries accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Aaron Gries commonly perform?
Top Medicare-reported procedures in 2023: Anesthesia for lens surgery (HCPCS 00142); Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (HCPCS 00731); Anesthesia for electroshock therapy (HCPCS 00104). Source: CMS Medicare Physician & Other Practitioners file.