Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Mr. Mario Alexander Nievas, CRNA

Individual provider Certified Registered Nurse Anesthetist · NPI 1043553944

Mr. Mario Alexander Nievas, CRNA is registered under Certified Registered Nurse Anesthetist (CRNA) in Pensacola, Florida. Qualified in 2008, 18 years ago. Practices with Etas PLLC, a 43-clinician group and accepts Medicare assignment. Licensed in Florida.

Years since qualifying
18
Licensed in
FL
In the registry since
2013
What do these letters mean?
CRNA — Certified Registered Nurse Anesthetist
An advanced practice nurse who administers anaesthesia.

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Practice location Address checks out

8383 N Davis Hwy
Pensacola, FL 32514-6039 Not confirmed with CMS for 13 years — call before visiting
Phone: (850) 494-6098
Fax: (850) 494-5150
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Certified Registered Nurse Anesthetist (primary) Taxonomy 367500000X · Licence ARNP9358885 (FL)

Record details

NPI number1043553944
Entity typeIndividual (Type 1)
GenderMale
Credentials CRNA
Sole proprietorYes
NPI enumeratedMarch 29, 2013
Last updated in NPPESMarch 29, 2013

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCERTIFIED REGISTERED NURSE ANESTHETIST (CRNA)
Medical schoolOTHER
Graduated 2008 (18 years in practice)
Group practice Etas Pllc — 43 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients138
Services billed 139 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $101 5 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Etas PLLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 43 clinicians in the practice; 12 are shown here.

Other providers in Pensacola