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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Massey, Allissa L, NP

Listed in ,
Wellnow Urgent Care
County:
Erie
Accepting New Patients:
Yes
Language(s):
English
Gender:
Female
(716) 799-1002

3190 Niagara Falls Boulevard
Amherst, NY 14228

Masson, Jamie, MD

Listed in , ,
Adirondack Medical Center
County:
Franklin
Language(s):
English
Gender:
Female
(518) 891-4141

2233 State Route 86
Saranac Lake, NY 12983

Masson, Jamie, MD

Listed in , ,
Glens Falls Hospital
Glens Falls Hospital - Intensivist
County:
Warren
Accepting New Patients:
Yes
Language(s):
English
(518) 926-6800

100 Park Street
Glens Falls, NY 12801

Masson, Jamie, MD

Listed in ,
Our Lady of Lourdes Memorial Hospital, Inc.
Lourdes Hospital
County:
Broome
Accepting New Patients:
Yes
Language(s):
English
Other Specialties:
Pulmonology
(607) 798-5231

169 Riverside Drive
Binghamton, NY 13905

Masson, Jamie L, MD

Listed in ,
Adirondack Medical Center
County:
Franklin
Accepting New Patients:
Yes
Language(s):
English
(518) 891-4141

2233 State Route 86
Saranac Lake, NY 12983

Mastay, Jamie L, NP

Listed in ,
University of Rochester
Strong Obstetrics - Gynecology Group
County:
Monroe
Accepting New Patients:
Yes
Language(s):
English
Gender:
Female
(585) 671-6790

1682 Empire Boulevard
Webster, NY 14580

Mastay, Jamie L, NP

Listed in ,
University of Rochester
Strong Obstetrics - Gynecology Group
County:
Monroe
Accepting New Patients:
Yes
Language(s):
English
Gender:
Female
(585) 225-1580

3101 West Ridge Road
Greece, NY 14626

Masten, Thomas D, MD

Listed in ,
Upstate University Medical Associates - Physical Medicine and Rehabilitation Medical Service Group, LLP
Physical Med & Rehab MSG
County:
Onondaga
Accepting New Patients:
Yes
Language(s):
English
Gender:
Male
Other Specialties:
Family Practice
(315) 464-2296

750 East Adams Street
Suite 2 West
Syracuse, NY 13210

Masten, Thomas D, MD

Listed in ,
Upstate University Medical Associates - Physical Medicine and Rehabilitation Medical Service Group, LLP
Physical Medicine & Rehab Medical Service Group
County:
Onondaga
Accepting New Patients:
Yes
Language(s):
English
Gender:
Male
Other Specialties:
Family Practice
(315) 464-9390

6620 Fly Road
East Syracuse, NY 13057

Master, Kenneth, MD

Listed in ,
St. Joseph's Hospital Health Center
CPEP
County:
Onondaga
Language(s):
English
Gender:
Male
(315) 726-8610

301 Prospect Avenue
Syracuse, NY 13203

Masters, Ellen, PHD

Listed in ,
Kaleida Health
OCH Mental Health
County:
Erie
Accepting New Patients:
Yes
Language(s):
English
Gender:
Female
(716) 859-5454

1028 Main Street
Buffalo, NY 14202

Masters, Jill K, DPT

Listed in ,
Austin Physical Therapy Specialists
County:
Seneca
Accepting New Patients:
No
Language(s):
English
Gender:
Female
(315) 539-4683

1282 Waterloo Geneva Road
Waterloo, NY 13165

Masterson, Bryan Patrick, PA, PA-C

Listed in ,
Rome Medical Practice PC
County:
Oneida
Accepting New Patients:
Yes
Language(s):
English
Gender:
Male
(315) 338-9200

1500 North James Street
Suite 106
Rome, NY 13440

Masterson, Bryan Patrick, PA, PA-C

Listed in ,
Rome Memorial Hospital
Rome Health Medical Center - Orthopedics
County:
Oneida
Accepting New Patients:
Yes
Language(s):
English
Gender:
Male
(315) 338-9200

1500 North James Street
Level 1
Rome, NY 13440

Masterson, Bryan Patrick, PA, PA-C

Listed in ,
Syracuse Orthopedic Specialists, P.C.
County:
Onondaga
Accepting New Patients:
Yes
Language(s):
English
Gender:
Male
(315) 418-4140

5719 Widewaters Parkway
Syracuse, NY 13214

Masterson, Bryan Patrick, PA, PA-C

Listed in ,
Syracuse Orthopedic Specialists, P.C.
County:
Onondaga
Accepting New Patients:
Yes
Language(s):
English
Gender:
Male
(315) 251-3100

5496 East Taft Road
Suite C
North Syracuse, NY 13212

Masterson, Bryan Patrick, PA, PA-C

Listed in ,
Syracuse Orthopedic Specialists, P.C.
County:
Onondaga
Accepting New Patients:
Yes
Language(s):
English
Gender:
Male
(315) 883-5881

5417 West Genesee Street
Camillus, NY 13031

Masterson, Bryan Patrick, PA, PA-C

Listed in ,
Syracuse Orthopedic Specialists, P.C.
County:
Onondaga
Accepting New Patients:
Yes
Language(s):
English
Gender:
Male
(315) 487-4876

8324 Oswego Road
Suite B
Liverpool, NY 13090

Masterson, Bryan Patrick, PA, PA-C

Listed in ,
Syracuse Orthopedic Specialists, P.C.
County:
Onondaga
Accepting New Patients:
Yes
Language(s):
English
Gender:
Male
(315) 418-4188

5801 East Taft Road
Syracuse, NY 13212

Mastrianni, David, MD

Listed in ,
Adirondack Medical Center
County:
Franklin
Language(s):
English
Gender:
Male
(518) 891-4141

2233 State Route 86
Saranac Lake, NY 12983

Mastrianni, David, MD

Listed in ,
Saratoga Hospital
SHMG - Oncology/Hematology
County:
Saratoga
Accepting New Patients:
Yes
Language(s):
English
Gender:
Male
(518) 226-6000

3 Care Lane
Suite 300
Saratoga Springs, NY 12866

Mastrianni, David, MD

Listed in ,
Saratoga Hospital
SHMG - Oncology/Hematology at Malta
County:
Saratoga
Accepting New Patients:
Yes
Language(s):
English
Gender:
Male
(518) 289-2717

6 Medical Park Drive
Suite 200
Malta, NY 12020

Mastrianni, David, MD

Listed in ,
Saratoga Hospital
SHMG - Oncology/Hematology
County:
Saratoga
Accepting New Patients:
Yes
Language(s):
English
Gender:
Male
(518) 226-6000

211 Church Street
Saratoga Springs, NY 12866

Mastrianni, David M, MD

Listed in ,
Adirondack Medical Center
County:
Franklin
Accepting New Patients:
Yes
Language(s):
English
Gender:
Male
(518) 897-2475

2233 State Route 86
Saranac Lake, NY 12983

Mastrianni, Mary Elizabeth, NP

Listed in ,
Ellis Hospital
Ellis Primary Care - Nott Street
County:
Schenectady
Accepting New Patients:
Yes
Language(s):
English
Gender:
Female
(518) 243-3388

1201 Nott Street
Suite 204
Schenectady, NY 12308
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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