DR. IGNACIO FEDERICO FERNANDEZ NIEVAS MD
NPI 1639363708
Pediatrics - Pediatric Critical Care Medicine in St Petersburg, FL
About Dr. Ignacio Federico Fernandez Nievas Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. IGNACIO FEDERICO FERNANDEZ NIEVAS MD (NPI 1639363708) is an individual pediatric critical care medicine provider in St Petersburg, Florida, licensed in Florida (ME146693) and active in the NPI registry since August 2007. He is enrolled in Medicare PECOS and is a graduate of Other (1989).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Ignacio Federico Fernandez Nievas Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Ignacio Fernandez Nievas reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
St Petersburg, FL 33701
- Reassigned Medicare billing, Florida enrollment
- 360 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SAINT PETERSBURG, FL 33701
ST PETERSBURG, FL 33701
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Ignacio Fernandez Nievas's NPI number?
The NPI number for Ignacio Fernandez Nievas is 1639363708. It was assigned to this individual provider in the NPPES registry on August 31, 2007.
Where is Ignacio Fernandez Nievas located?
Ignacio Fernandez Nievas practices at 501 6th Ave S, St Petersburg, FL 33701. The listed phone number is (727) 767-4343.
What is Ignacio Fernandez Nievas's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Critical Care Medicine, with taxonomy code 2080P0203X.
Is Ignacio Fernandez Nievas enrolled in Medicare?
Yes. Ignacio Fernandez Nievas is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Ignacio Fernandez Nievas's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ignacio Fernandez Nievas reassigns Medicare benefits to Pediatric Physician Services, Inc. (St Petersburg, FL). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Ignacio Fernandez Nievas's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Ignacio Fernandez Nievas accept?
Health plans from Cigna HealthCare of Florida, Inc. and Cigna Healthcare list Ignacio Fernandez Nievas as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Ignacio Fernandez Nievas was last updated on May 3, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. Ignacio Federico Fernandez Nievas, MD · NPI 1639363708
Pediatric Critical Care Medicine physician in St Petersburg, Florida. Individual provider, active in the CMS NPPES registry since August 31, 2007.
## Identity
- **NPI:** 1639363708 (Entity type: Individual)
- **Enumerated:** August 31, 2007
- **Primary specialty:** Pediatrics - Pediatric Critical Care Medicine · taxonomy 2080P0203X
- **State license:** ME146693 (Florida)
- **Sole proprietor:** No
## Practice location
- **Address:** 501 6TH AVE S, St Petersburg, FL 33701-4634
- **Phone:** (727) 767-4343 · **Fax:** (727) 767-4331
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Pediatric Physician Services, Inc. (NPI 1770532798, St Petersburg, FL), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1989
## Record status
- **NPPES last updated:** May 3, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1639363708) · Data from the CMS NPPES public registry.