Aaron Gries, MD
NPI 1255377321 · Anesthesiology Physician · Evansville, IN
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Aaron Gries, MD is a Anesthesiology Physician provider in Evansville, IN (NPI 1255377321).
Provider details
- NPI number
- 1255377321
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 01056077A (IN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
317 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Anesthesia for Lens Surgery00142 | 202 | $98 |
| Anesthesia for Electroshock Therapy00104 | 28 | $92 |
| Anesthesia for Other Procedure on Esophagus, Stomach, Or Upper Small Bowel Using an Endoscope00731 | 21 | $125 |
| Injection of Anesthetic Agent And/Or Steroid Into Thigh Nerve (femoral Nerve)64447 | 17 | $51 |
| Injection of Local Anesthetic for Abdominal Wall Pain Control on Both Sides Using Imaging Guidance64488 | 14 | $63 |
| Anesthesia for Other Procedure on Upper Abdomen00790 | 13 | $211 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-20
- Last updated
- 2011-05-26
Frequently asked questions
- What is Aaron Gries's NPI number?
- Aaron Gries's National Provider Identifier (NPI) is 1255377321, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Aaron Gries's specialty?
- Aaron Gries is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Aaron Gries located?
- Aaron Gries's practice location on file with NPPES is 3700 Washington Ave, Evansville, IN 47750.
- What is Aaron Gries's phone number?
- The practice phone number listed in the NPPES registry for Aaron Gries is (812) 485-4000.
- Does Aaron Gries accept Medicare?
- Aaron Gries is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Aaron Gries's NPI active?
- Yes — Aaron Gries's NPI (1255377321) is active in the NPPES registry as of the last update on 2011-05-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.