MARIA C UMBAC ARNP
NPI 1881764587
Nurse Practitioner in South Miami, FL
About Maria C Umbac Arnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARIA C UMBAC ARNP (NPI 1881764587) is an individual nurse practitioner in South Miami, Florida, licensed in Florida (APRN2673172) and active in the NPI registry since November 2006. She is enrolled in Medicare PECOS.
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 (PECOS)
Maria C Umbac Arnp is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Maria Umbac reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Miami, FL 33144
- Reassigned Medicare billing, Florida enrollment
- 2 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 33143 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
SOUTH MIAMI, FL 33143
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 Maria Umbac's NPI number?
The NPI number for Maria Umbac is 1881764587. It was assigned to this individual provider in the NPPES registry on November 9, 2006.
Where is Maria Umbac located?
Maria Umbac practices at 6200 SW 73rd St, South Miami, FL 33143. The listed phone number is (305) 661-2534.
What is Maria Umbac's specialty?
The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.
Is Maria Umbac enrolled in Medicare?
Yes. Maria Umbac is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Maria Umbac's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Maria Umbac reassigns Medicare benefits to Ricardo Castrellon MD PA (Miami, 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 Maria Umbac's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Maria Umbac accept?
Health plans from AmeriHealth Caritas Next, Cigna HealthCare of Florida, Inc., Cigna Healthcare and Oscar Health Maintenance Organization of Florida list Maria Umbac 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 Maria Umbac was last updated on May 8, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 months 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.