MARK B WEITZENFELD MD
Medicare Clinicians for NPI 1427426113
Urology in Aventura, FL
Clinicians Billing Medicare Through This Organization CMS
Clinicians who reassign their Medicare billing to this organization, per CMS enrollment records.
Mark B Weitzenfeld MD in Aventura, FL bills Medicare for 282 clinicians across 19 Medicare specialties. The largest specialties are Urology with 86, Nurse Practitioner with 56 and Radiation Oncology with 53. Of these, 1 practice at this address and 17 within 10 miles. Search by name or filter by specialty; each name links to that clinician's NPI profile.
This page lists the 250 clinicians practicing nearest to this organization's location. All 282 are counted in the totals above.
Urology (73 of 86)
Hallandale Beach, FL 33009
Hallandale Beach, FL 33009
Bonita Springs, FL 34135
Fort Myers, FL 33907
Venice, FL 34292
Radiation Oncology (48 of 53)
Coconut Creek, FL 33063
Palm Beach Gardens, FL 33410
Nurse Practitioner (42 of 56)
Fort Myers, FL 33913
Venice, FL 34292
Hematology/Oncology (18)
General Surgery (17)
Medical Oncology (14)
Otolaryngology (7)
Surgical Oncology (5)
Internal Medicine (4)
Qualified Audiologist (4)
Colorectal Surgery (Proctology) (3)
Gynecological Oncology (3)
Pulmonary Disease (3)
Diagnostic Radiology (2)
Hematology (2)
Pathology (2)
Anesthesiology (1)
Critical Care (Intensivists) (1)
Vascular Surgery (1)
About this data
Medicare reassignment. A clinician who works for a hospital, clinic or medical group usually signs a Medicare reassignment (form CMS-855R). It lets the organization bill Medicare for the clinician's services and receive the payment. This page lists the clinicians whose reassignment to Mark B Weitzenfeld MD appears in the CMS Revalidation Reassignment List.
Who is included. Clinicians who bill Medicare under their own NPI through this organization. A clinician can reassign to more than one organization, so the same name may also appear under other groups.
Nearest 250. The totals and specialty counts cover all 282 clinicians. The list shows the 250 whose practice address is closest to this NPI's location, so each Mark B Weitzenfeld MD location shows its own nearest clinicians.
Addresses and phone numbers come from each clinician's own NPPES record, so they may point to another office or to the clinician's own practice.
Source: CMS Revalidation Reassignment List, October 2026 release; addresses, phone numbers and Medicare status from NPPES and PECOS. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.