Warren Nix, CRNA
NPI 1427353143 · Certified Registered Nurse Anesthetist · Lawton, OK
Enrolled with Medicare as Practitioner - Certified Registered Nurse Anesthetist (crna) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Warren Nix, CRNA is a Certified Registered Nurse Anesthetist provider in Lawton, OK (NPI 1427353143).
Provider details
- NPI number
- 1427353143
- Entity type
- Individual
- Primary specialty
- Certified Registered Nurse AnesthetistPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- CRNA
- Sex
- Male
- Sole proprietor
- No
- License
- 71393 (OK)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
15 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
265 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 Other Procedure on Esophagus, Stomach, Or Upper Small Bowel Using an Endoscope00731 | 56 | $112 |
| Anesthesia for Procedure on Small and Large Bowel Using an Endoscope00813 | 50 | $131 |
| Anesthesia for Other Procedure on Large Bowel Using an Endoscope00811 | 43 | $106 |
| Anesthesia for Exam of Colon Using an Endoscope00812 | 34 | $82 |
| Insertion of Tube for Infusion (5 Years Or Older)36569 | 25 | $87 |
| Injection of Anesthetic Agent And/Or Steroid Into Thigh Nerve (femoral Nerve)64447 | 24 | $59 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2011-01-12
- Last updated
- 2011-01-12
Frequently asked questions
- What is Warren Nix's NPI number?
- Warren Nix's National Provider Identifier (NPI) is 1427353143, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Warren Nix's specialty?
- Warren Nix is listed in the NPPES registry with a primary specialty of Certified Registered Nurse Anesthetist (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Warren Nix located?
- Warren Nix's practice location on file with NPPES is 3401 W Gore Blvd, Lawton, OK 73505-6332.
- What is Warren Nix's phone number?
- The practice phone number listed in the NPPES registry for Warren Nix is (580) 585-5534.
- Does Warren Nix accept Medicare?
- Warren Nix is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Warren Nix's NPI active?
- Yes — Warren Nix's NPI (1427353143) is active in the NPPES registry as of the last update on 2011-01-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.