MARGARET ANNE COSMAR
NPI 1790453967
Nurse Practitioner - Adult Health in Deerfield Beach, FL
About Margaret Anne Cosmar NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARGARET ANNE COSMAR (NPI 1790453967) is an individual adult health provider in Deerfield Beach, Florida, licensed in Florida (APRN11015196) and active in the NPI registry since September 2021. She is enrolled in Medicare PECOS, is affiliated with Holy Cross Hospital, and is a graduate of Other (2021).
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
Margaret Anne Cosmar 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 Reassignments
4Medicare enrollment records show Margaret Cosmar reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Deerfield Beach, FL 33441
- Reassigned Medicare billing, Florida enrollment
- 252 clinicians in this Medicare group
Boca Raton, FL 33486
- Reassigned Medicare billing, Florida enrollment
- 174 clinicians in this Medicare group
Delray Beach, FL 33484
- Reassigned Medicare billing, Florida enrollment
- 33 clinicians in this Medicare group
Boca Raton, FL 33428
- Reassigned Medicare billing, Florida enrollment
- 516 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.
Hospital Affiliations CMS Care Compare 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Holy Cross Hospital
Acute Care Hospitals · Fort Lauderdale, FLBoca Raton Regional Hospital
Acute Care Hospitals · Boca Raton, FLDelray Medical Center
Acute Care Hospitals · Delray Beach, FLPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 33442 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 3
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
DEERFIELD BEACH, FL 33442
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 Margaret Cosmar's NPI number?
The NPI number for Margaret Cosmar is 1790453967. It was assigned to this individual provider in the NPPES registry on September 2, 2021.
Where is Margaret Cosmar located?
Margaret Cosmar practices at 3313 W Hillsboro Blvd Ste 100, Deerfield Beach, FL 33442. The listed phone number is (561) 955-4600.
What is Margaret Cosmar's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Adult Health, with taxonomy code 363LA2200X.
Is Margaret Cosmar enrolled in Medicare?
Yes. Margaret Cosmar 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 organizations bill Medicare for Margaret Cosmar's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Margaret Cosmar reassigns Medicare benefits to 4 organizations: North Broward Hospital District (Deerfield Beach, FL), Bocacare Inc (Boca Raton, FL), Genesis Critical Care Associates, LLC (Delray Beach, FL) and Florida Hospital Medicine Services, LLC. (Boca Raton, FL). Each 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 Margaret Cosmar's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Margaret Cosmar accept?
Health plans from Cigna HealthCare of Florida, Inc. and Cigna Healthcare list Margaret Cosmar 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.
Is Margaret Cosmar affiliated with any hospitals?
According to CMS data, Margaret Cosmar is affiliated with Holy Cross Hospital, Boca Raton Regional Hospital and Delray Medical Center.
When was this NPI record last updated?
The NPPES record for Margaret Cosmar was last updated on October 20, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.