Clinicians affiliated with Hackensack Meridian Mountainside Medical

Acute Care Hospitals · Proprietary · 1 Bay Avenue, Montclair, NJ 07042 · New York-Newark-Jersey City, NY-NJ · CCN 310054

Affiliation snapshotNovember 2, 2026CMS Doctors and Clinicians Facility Affiliation file, current snapshot (no end-of-2024 archive), applied to 2024
Activity year2024Medicare Part B claims, Original Medicare fee-for-service

428 clinicians affiliated with Hackensack Meridian Mountainside Medical are in the 2024 Medicare Part B data (466 listed in the affiliation file).

Each clinician's exact figures are in their Physician Report, from their page. View sample report · Already purchased? Open your report (earlier Local report and passes)

Affiliated clinicians by specialty, 2024

All specialties · Internal Medicine (59) · Diagnostic Radiology (31) · Cardiology (25) · Family Practice (23) · Emergency Medicine (21) · Anesthesiology (20) · Nurse Practitioner (18) · Gastroenterology (16) · Certified Registered Nurse Anesthetist (CRNA) (15) · Orthopedic Surgery (15) · Pulmonary Disease (14) · Nephrology (13) · Neurology (12) · Physician Assistant (12) · General Surgery (10) · Hematology-Oncology (10) · Pathology (9) · Podiatry (9) · Urology (8) · Obstetrics & Gynecology (7) · Endocrinology (6) · Hospitalist (6) · Otolaryngology (6) · Vascular Surgery (6) · Critical Care (Intensivists) (5) · Interventional Cardiology (5) · Clinical Cardiac Electrophysiology (4) · Infectious Disease (4) · Licensed Clinical Social Worker (4) · Physical Medicine and Rehabilitation (4) · Neurosurgery (3) · Plastic and Reconstructive Surgery (3) · Psychiatry (3) · Radiation Oncology (3) · Rheumatology (3) · Thoracic Surgery (3) · Dermatology (2) · Geriatric Medicine (2) · Pain Management (2) · Sports Medicine (2) · Allergy/ Immunology (1) · Colorectal Surgery (Proctology) (1) · Gynecological Oncology (1) · Medical Oncology (1) · Ophthalmology (1)

Clinicians affiliated with Hackensack Meridian Mountainside Medical, 2024

Alphabetical by last name; 401–428 of 428.

NameSpecialtyCity
Bradley N Tun, M.D.CardiologyBoston, MA
Erol Ulker, MDUrologyBelleville, NJ
John J Vaccaro, MDNeurologyGlen Ridge, NJ
Peter S Vaclavik, MDAnesthesiologyNeptune, NJ
Yosleisy Valdes Hernandez, MDHospitalistBerkeley Heights, NJ
Hemalatha Vasireddy, MDHematology-OncologyBelleville, NJ
Oscar Vazquez, M.D.Orthopedic SurgeryHackensack, NJ
Sharon S Ventura, APN-CNurse PractitionerHarrington Park, NJ
Mario Vukic, MDNeurologyHackensack, NJ
Derrick I Wallace, M.D.OtolaryngologyNutley, NJ
Konstantin Walmsley, M.D.UrologyGlen Ridge, NJ
Kenneth P Walsh, M.D.Vascular SurgeryMason City, IA
Michael Warhit, M.D.Diagnostic RadiologyNewark, NJ
Renata V Weber, MDPlastic and Reconstructive SurgeryRutherford, NJ
Michael J Wilderman, MDVascular SurgeryHackensack, NJ
Robert Wilkins, M.D.Diagnostic RadiologyPort Jervis, NY
Jeffrey F Williams, M.D.UrologyGlen Ridge, NJ
Jeffrey M Williams, M.D.DermatologyBozeman, MT
Tianzhong Yang, M.D.Internal MedicineMontclair, NJ
Daniel D Yao, MDAnesthesiologySummit, NJ
Laura A Yapor, MDPulmonary DiseaseGlen Ridge, NJ
Lynda A Youngworth, M.D., C.M., P.C.OphthalmologyCedar Grove, NJ
Jan S Youssef, M.D.OtolaryngologyNutley, NJ
Oliver S Youssef, M.D.OtolaryngologyClifton, NJ
Tehrim ZahidInternal MedicineMontclair, NJ
Dmitriy Zelikson, DOEmergency MedicineElizabeth, NJ
Robert D Zenenberg, D.O.NephrologyFlorham Park, NJ
Michael Zozzaro, MDOtolaryngologyRutherford, NJ

Affiliation comes from the CMS Doctors and Clinicians Facility Affiliation file, hospital rows only; name, address and type from the CMS Hospital General Information file. CMS does not publish an end-of-year archive of the affiliation file, so the current snapshot is applied to the latest data year. A clinician listed with several hospitals or groups appears on each of their pages. How hospital pages are built