Clinicians affiliated with Rwjbh Observation Associates LLC

1,008 clinicians on file with this group · most practice in New York-Newark-Jersey City, NY-NJ · PAC ID 5193137503

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

854 clinicians affiliated with Rwjbh Observation Associates LLC are in the 2024 Medicare Part B data, 479 of them physicians. Data years with affiliated clinicians: 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024.

Each clinician's exact figures are in their Physician Report, from their page; a specialty's figures in this market are in a Market Comparison. View sample report · Already purchased? Open your report

Affiliated clinicians by specialty, 2024

All specialties · Anesthesiology (219) · Certified Registered Nurse Anesthetist (CRNA) (201) · Diagnostic Radiology (117) · Physician Assistant (112) · Nurse Practitioner (62) · Emergency Medicine (47) · Internal Medicine (25) · Pulmonary Disease (22) · Critical Care (Intensivists) (15) · Pathology (13) · Interventional Radiology (11) · Nuclear Medicine (3) · Pain Management (2) · Family Practice (1) · General Surgery (1) · Interventional Cardiology (1) · Interventional Pain Management (1) · Sleep Medicine (1)

Specialty links go to the specialty in New York-Newark-Jersey City, NY-NJ.

Clinicians affiliated with Rwjbh Observation Associates LLC, 2024

Alphabetical by last name; 801–854 of 854.

NameSpecialtyCity
Luisa F Villamil, DNPCertified Registered Nurse Anesthetist (CRNA)Bronx, NY
Majella VucinaPhysician AssistantStaten Island, NY
Sumathi Wable, M.D.Diagnostic RadiologySeattle, WA
Namrata Wadhwa, M.D.AnesthesiologyCamden, NJ
Lloyd D Wagner, M.D.Diagnostic RadiologySanta Monica, CA
Frederick A Waldron, MDEmergency MedicineEast Brunswick, NJ
John S Walker, D.O.AnesthesiologySomerset, NJ
Shariff WalkerAnesthesiologyBensalem, PA
Susan J Walsh, CRNACertified Registered Nurse Anesthetist (CRNA)Allendale, NJ
Cheng-Teng Wang, M.D.Emergency MedicineJersey City, NJ
David M Ward, CRNACertified Registered Nurse Anesthetist (CRNA)Philadelphia, PA
Nicholas S WarrenCertified Registered Nurse Anesthetist (CRNA)Livingston, NJ
Michael K Wassef, M.D.AnesthesiologyNew Brunswick, NJ
Eric J Wasserman, MD, FACEP, DABOMEmergency MedicineToms River, NJ
Sharon M Weiner, MDPulmonary DiseaseEatontown, NJ
Mary F Welsh, M.D.General SurgeryFairfield, NJ
Susan L Welsh, CRNACertified Registered Nurse Anesthetist (CRNA)Newark, NJ
Nicole D Weshnak, RN, CRNACertified Registered Nurse Anesthetist (CRNA)Point Pleasant Boro, NJ
Samantha H Wilcox, PA-CPhysician AssistantJersey City, NJ
Scott I Winikoff, M.D.AnesthesiologyEaston, PA
Ronald R Winters, M.D.Diagnostic RadiologyFort Smith, AR
Bokran Won, M.D.Diagnostic RadiologyRed Bank, NJ
Man Piu Wong, M.D.AnesthesiologyBoston, MA
Belle Woo, C.R.N.A.Certified Registered Nurse Anesthetist (CRNA)Paterson, NJ
Brian E Wosnitzer, M.D.Nuclear MedicineShort Hills, NJ
Melissa WuAnesthesiologyNew Brunswick, NJ
Cynthia Xenakis, MDAnesthesiologyValhalla, NY
Meng-Jun XiongPathologyBirmingham, AL
Donglei Yan, CRNACertified Registered Nurse Anesthetist (CRNA)Berkeley Heights, NJ
Dingming Yang, MDPathologyPerth Amboy, NJ
Miguel A Yaport, M.D.AnesthesiologyBoston, MA
Avraham M Yarmove, CRNACertified Registered Nurse Anesthetist (CRNA)Elizabeth, NJ
Muataz Yaziji, M.D.Internal MedicineStony Brook, NY
Jin YeCertified Registered Nurse Anesthetist (CRNA)New York, NY
Erica J Yi, CRNACertified Registered Nurse Anesthetist (CRNA)Philadelphia, PA
Diana Ying, CRNACertified Registered Nurse Anesthetist (CRNA)Dumont, NJ
John Yoon, MDInterventional RadiologyNewark, NJ
Mazen Yousef, APNNurse PractitionerToms River, NJ
Yanina V Zabrodina, M.D.AnesthesiologyToms River, NJ
Sherry Zakhary, D.O.Diagnostic RadiologyNew York, NY
Elina Zaretsky, MDDiagnostic RadiologyMiddletown, NY
Brit D ZaroAnesthesiologyLivingston, NJ
Priscilla A Zarsadias, DNP, APN, CRNACertified Registered Nurse Anesthetist (CRNA)Jersey City, NJ
Peter G Zazzali, MDInternal MedicineNutley, NJ
John P Zeibeq, M.D.Critical Care (Intensivists)Philadelphia, PA
Andrzej Zembrzuski, M.D.AnesthesiologyDenville, NJ
Zhou Zhang, M.D.Emergency MedicineLivingston, NJ
Lingbin Zhou, MDAnesthesiologyBrick, NJ
Violeta ZileskaNurse PractitionerGarfield, NJ
Thomas Zimmerman, CRNA, APN, PA-C, RNCertified Registered Nurse Anesthetist (CRNA)New Brunswick, NJ
Salvatore Zisa, MDAnesthesiologyNew Brunswick, NJ
Matthew P Zlotnick, M.D.AnesthesiologyLong Branch, NJ
Alexandria M Zummo, PA-CPhysician AssistantBelleville, NJ
Annette E Zwick, MDAnesthesiologyHamilton Square, NJ

Practice locations

Listed practice locations in California, Florida, Illinois, Kentucky, North Carolina, New Jersey, New York, Ohio, Pennsylvania, South Carolina, Texas, Utah, Virginia, Washington.

Source: CMS Doctors and Clinicians National Downloadable File, snapshot October 2, 2026.

Membership comes from the CMS Doctors and Clinicians file. CMS does not publish an end-of-year archive of it, so the current snapshot is applied to every data year. A clinician affiliated with several groups or hospitals appears on each of their pages. How group pages are built · Limitations