Medicare Advantage Provider Directory

The network providers listed in the directory below have agreed to provide you with your health care services. All providers in this provider directory accept both Medicare and Medicaid.

  • For dental services – Search the online directory – Select Choose a location and plan, enter your address, city, or zip code, and under Plan name select NY Nascentia Medicare listed under NY. For assistance please call 1-844-824-2024 (TTY: 1-800-466-7566).
  • For vision services – Search the online directory. For assistance please call Member Services at 1-888-477-0090 (TTY: 711) or Superior Vision at 1-800-879-6901.
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Masia, Nicholas G, DC

Listed in ,
Christopher Chiropractic Center, Ll
County:
Erie
Accepting New Patients:
Yes
Language(s):
English
Gender:
Male
(716) 626-5224

5842 Main Street
Williamsville, NY 14221

Masiello, Andrea Maria, BSN; FNP-C; NP; RN

Listed in ,
University of Rochester Medical Center
Trauma Burn Emergency Surgery of University of Rochester
County:
Monroe
Accepting New Patients:
Yes
Language(s):
English
Gender:
Female
(585) 275-5100

601 Elmwood Avenue
Rochester, NY 14642

Masiello, Mallory, PA

Listed in ,
SUNY Health Science Center at Syracuse dba University Hospital
County:
Onondaga
Accepting New Patients:
Yes
Language(s):
English
Gender:
Female
(315) 464-5726

750 East Adams Street
Syracuse, NY 13210

Masiero, Lauren, LCSW

Listed in ,
Valera Medical PC
Valera Health
County:
New York County (Manhattan)
Accepting New Patients:
Yes
Language(s):
English
Gender:
Female
(646) 450-7748

139 Centre Street
Suite 824
New York, NY 10013

Maslak, Patricia, FNP-BC

Listed in ,
SUNY Health Science Center at Syracuse dba University Hospital
County:
Onondaga
Accepting New Patients:
Yes
Language(s):
English
Gender:
Female
(315) 464-6255

750 East Adams Street
Syracuse, NY 13210

Maslak, Peter, MD

Listed in ,
Roswell Park Cancer Institute Corporation
County:
Erie
Accepting New Patients:
Yes
Language(s):
English
Gender:
Male
(716) 845-8711

100 College Parkway
Suite 290
Amherst, NY 14221

Maslak, Peter, MD

Listed in ,
Roswell Park Cancer Institute Corporation
County:
Erie
Accepting New Patients:
Yes
Language(s):
English
Gender:
Male
(716) 845-2300

Elm & Carlton Street
Buffalo, NY 14263

Mason, Christopher, DO

Listed in , ,
Glens Falls Hospital
County:
Warren
Accepting New Patients:
Yes
Language(s):
English
Gender:
Male
(518) 926-6620

100 Park Street
Glens Falls, NY 12801

Mason, Christopher, DO

Listed in , ,
Glens Falls Hospital
CR Wood Cancer Center @ GFH
County:
Warren
Accepting New Patients:
Yes
Language(s):
English
Gender:
Male
(518) 926-6620

102 Park Street
Glens Falls, NY 12801

Mason, James, DO

Listed in ,
Lewis County General Hospital
County:
Lewis
Accepting New Patients:
Yes
Language(s):
English
Gender:
Male
(315) 376-4505

7785 North State Street
Suite 120
Lowville, NY 13367

Mason, James M, MD

Listed in ,
University of Rochester
County:
Monroe
Accepting New Patients:
No
Language(s):
English
Gender:
Male
(585) 602-2300

800 Ayrault Road
Suite 200
Fairport, NY 14450

Mason, Matthew, MD

Listed in , ,
Upstate University Medical Associates at Syracuse
Upstate Urology, Inc.
County:
Onondaga
Accepting New Patients:
Yes
Language(s):
English
Gender:
Male
(315) 464-1500

550 Harrison Street
#M
Syracuse, NY 13202

Mason, Paul, MD

Listed in ,
Wyoming County Community Health System
County:
Wyoming
Accepting New Patients:
Yes
Language(s):
English
Gender:
Male
(585) 786-8940

400 North Main Street
Warsaw, NY 14569

Mason, Sarah, CNM

Listed in ,
Guthrie Medical Group, P.C.
County:
Bradford
Accepting New Patients:
Yes
Language(s):
English
Gender:
Female
(570) 887-2555

1 Guthrie Square
Sayre, PA 18848

Mason, Sarah J, CNM

Listed in ,
Guthrie Medical Group, P.C.
County:
Steuben
Accepting New Patients:
Yes
Language(s):
English
Gender:
Female
(607) 937-8000

3 Guthrie Drive
Corning, NY 14830

Mason, Veronica V, FNP

Listed in ,
Mason NP in Family Medicine PC
County:
Niagara
Accepting New Patients:
Yes
Language(s):
English
Gender:
Female
(716) 216-4424

2131 Sawyer Drive
Suite 6
Niagara Falls, NY 14304

Mason, Veronica V, NP

Listed in ,
Mason Nurse Practitioner In Family
County:
Niagara
Accepting New Patients:
Yes
Language(s):
English
Gender:
Female
(716) 216-4424

2131 Sawyer Drive
Suite 6
Niagara Falls, NY 14304

Masood, Shawn S, NP

Listed in , ,
University of Rochester
Highland Hospital of Rochester
County:
Monroe
Language(s):
English
Gender:
Male
(585) 601-2100

999 East Ridge Road
Suite #800
Rochester, NY 14621

Masoud, Hesham E, MD

Listed in ,
Upstate University Medical Associates - Neurology Medical Service Group LLP
Neurology Botox Clinic
County:
Onondaga
Accepting New Patients:
Yes
Language(s):
English
Gender:
Male
Other Specialties:
Neurology, Vascular
(315) 464-4627

750 East Adams Street
Syracuse, NY 13210

Masoud, Hesham E, MD

Listed in ,
Upstate University Medical Associates - Neurology Medical Service Group LLP
Neurology Clinic
County:
Onondaga
Accepting New Patients:
Yes
Language(s):
English
Gender:
Male
Other Specialties:
Neurology, Vascular
(315) 464-4243

90 Presidential Plaza
4th Floor
Syracuse, NY 13202

Masoud, Taylor Jacqueline, NP

Listed in ,
Upstate University Medical Associates - Psychiatry Faculty Practice, Inc.
Psychiatry Faculty Practice, Inc (UH)
County:
Onondaga
Accepting New Patients:
Yes
Language(s):
English
Gender:
Female
(315) 464-3265

750 East Adams Street
Syracuse, NY 13210

Masoud, Taylor Jacqueline, NP

Listed in ,
Upstate University Medical Associates - Psychiatry Faculty Practice, Inc.
Psychiatry Faculty Practice, Inc (E.Gen)
County:
Onondaga
Accepting New Patients:
Yes
Language(s):
English
Gender:
Female
(315) 464-3265

600 East Genesee Street
Suite 217
Syracuse, NY 13202

Masoud, Taylor Jacqueline, NP

Listed in ,
Upstate University Medical Associates - Psychiatry Faculty Practice, Inc.
Psychiatry Faculty Practice, Inc (Harr)
County:
Onondaga
Accepting New Patients:
Yes
Language(s):
English
Gender:
Female
(315) 464-3265

713 Harrison Street
Building TU3
Syracuse, NY 13210

Masoud, Taylor Jacqueline, NP

Listed in ,
Upstate University Medical Associates - Psychiatry Faculty Practice, Inc.
Psychiatry Faculty Practice, Inc (TU4)
County:
Onondaga
Accepting New Patients:
Yes
Language(s):
English
Gender:
Female
(315) 464-3265

719 Harrison Street
Syracuse, NY 13210

Massachi, Sasha, MD

Listed in ,
University of Rochester
Department of Psychiatric Clinical Group University of Rochester
County:
Monroe
Accepting New Patients:
Yes
Language(s):
English
Gender:
Female
(585) 273-5050

300 Crittenden Boulevard
Rochester, NY 14642
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Online directory last updated on October 10, 2025

Download the Provider Directory (pdf), updated October 10, 2025

Page last updated on October 16, 2025