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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Mahany, Nathan, MD

Listed in ,
St. Peter's Health Partners - St. Peter's Hospital
Hospitalist Department
County:
Albany
Accepting New Patients:
Yes
Language(s):
English
Gender:
Male
(518) 525-1550

315 South Manning Boulevard
Albany, NY 12208

Mahany, Nathan Bryce, MD

Listed in ,
St. Peter's Health Partners - Samaritan Hospital
Hospitalist Department
County:
Rensselaer
Language(s):
English
Gender:
Male
(518) 271-3300

2215 Burdett Avenue
Troy, NY 12180

Mahany, Nathan Bryce, MD

Listed in ,
St. Peter's Health Partners - Samaritan Hospital
Hospitalist Department
County:
Albany
Language(s):
English
Gender:
Male
(518) 471-3221

600 Northern Boulevard
Albany, NY 12204

Mahapatra, Angana, DO

Listed in ,
Upstate University Medical Associates - SUNY Health Science
Infectious Disease Associates
County:
Onondaga
Accepting New Patients:
Yes
Language(s):
English
(315) 464-9360

725 Irving Avenue
Suite 314
Syracuse, NY 13210

Mahapatra, Rahul, DO

Listed in ,
Upstate University Medical Associates - SUNY Health Science
Infectious Disease Associates
County:
Onondaga
Accepting New Patients:
Yes
Language(s):
English
(315) 464-9360

725 Irving Avenue
Suite 314
Syracuse, NY 13210

Mahar, Rebecca, RD

Listed in ,
Saratoga Hospital
SHMG - Endocrinology & Diabetes
County:
Saratoga
Accepting New Patients:
Yes
Language(s):
English
Gender:
Female
(518) 580-2185

665 Saratoga Road
Suite #400
Wilton, NY 12831

Mahar, Rebecca, RD

Listed in ,
Saratoga Hospital
SHMG - Endocrinology & Diabetes @ Wilton Medical Arts
County:
Saratoga
Accepting New Patients:
Yes
Language(s):
English
Gender:
Female
(518) 580-2185

3040 Route 50
Saratoga Springs, NY 12866

Mahar, Rebecca, RD

Listed in ,
Saratoga Hospital
SHMG - Endocrinology & Diabetes @ Malta
County:
Saratoga
Accepting New Patients:
Yes
Language(s):
English
Gender:
Female
(518) 580-2185

8 Medical Park Drive
Suite 202
Malta, NY 12020

Maheshwari, Yogesh, MD

Listed in ,
Gastroenterology Associates, LLP
County:
Niagara
Accepting New Patients:
No
Language(s):
English
Gender:
Male
Other Specialties:
Gastroenterology
(716) 626-5250

6935 Elaine Drive
Niagara Falls, NY 14304

Mahl, Thomas, MD

Listed in , ,
Erie County Medical Center
County:
Erie
Accepting New Patients:
Yes
Language(s):
English
Gender:
Male
(716) 898-3333

462 Grider Street
Buffalo, NY 14215

Mahler, Jason, NP

Listed in ,
Our Lady of Lourdes Memorial Hospital, Inc.
Lourdes Riverside Surgical
County:
Broome
Accepting New Patients:
Yes
Language(s):
English
Gender:
Male
(607) 352-3250

169 Riverside Drive
Binghamton, NY 13905

Mahler, Jason, NP

Listed in , ,
United Medical Associates, PC
United Medical Associates, P.C.
County:
Broome
Accepting New Patients:
Yes
Language(s):
English
Gender:
Male
(607) 763-6580

30 Harrison Street
Suite 250
Johnson City, NY 13790

Mahler, Stewart C, MD

Listed in ,
University of Rochester
County:
Monroe
Accepting New Patients:
Yes
Language(s):
English
Gender:
Male
(585) 275-7424

601 Elmwood Avenue
Rochester, NY 14642

Mahler, Stewart C, MD

Listed in , ,
University of Rochester
Internal Medicine Group
County:
Monroe
Language(s):
English
Gender:
Male
(585) 275-4912

601 Elmwood Avenue
Rochester, NY 14642

Mahler, Stewart C, MD

Listed in , ,
University of Rochester
Highland Hospital of Rochester
County:
Monroe
Language(s):
English
Gender:
Male
(585) 341-6776

1000 South Avenue
Rochester, NY 14620

Mahmood, Bilal, MD

Listed in ,
University of Rochester
University Orthopaedic Associates of Rochester
County:
Monroe
Accepting New Patients:
Yes
Language(s):
English, Urdu
Gender:
Male
(585) 275-5321

10 Miracle Mile Drive
Rochester, NY 14623

Mahmood, Bilal, MD

Listed in ,
University of Rochester
University Orthopaedic Associates of Rochester
County:
Monroe
Accepting New Patients:
Yes
Language(s):
English, Urdu
Gender:
Male
(585) 275-5321

601 Elmwood Avenue
Rochester, NY 14642

Mahmood, Sultan, MD

Listed in ,
Erie County Medical Center
County:
Erie
Accepting New Patients:
Yes
Language(s):
English
Gender:
Male
(716) 898-3333

462 Grider Street
Buffalo, NY 14215

Mahmoud, Ahmed, MD

Listed in ,
Claxton Medical PC
County:
Jefferson
Accepting New Patients:
No
Language(s):
English
Gender:
Male
(315) 713-5300

830 Washington Street
Suite 100
Watertown, NY 13601

Mahmoud, Ahmed, MD

Listed in ,
Claxton-Hepburn Medical Center
County:
St. Lawrence
Accepting New Patients:
Yes
Language(s):
English
Gender:
Male
(315) 393-3600

214 King Street
Ogdensburg, NY 13669

Mahmoud, Ahmed, MD

Listed in ,
Claxton Medical PC
County:
St. Lawrence
Accepting New Patients:
No
Language(s):
English
Gender:
Male
(315) 393-2611

305 Main Street
Ogdensburg, NY 13669

Mahmoud, Ahmed, MD

Listed in ,
Claxton Medical PC
County:
St. Lawrence
Accepting New Patients:
No
Language(s):
English
Gender:
Male
(315) 713-5300

3 Lyon Place
Suite 100
Ogdensburg, NY 13669

Mahon, Hiromi Kimura, MD

Listed in ,
St. Peter's Health Partners - St. Peter's Health Partners Medical Associates, P.C.
St. Peter's Family Medicine
County:
Albany
Accepting New Patients:
Yes
Language(s):
English
Gender:
Female
(518) 533-6710

1444 Western Avenue
Suite C
Albany, NY 12203

Mahon, Hiromi Kimura, MD

Listed in ,
St. Peter's Health Partners - St. Peter's Health Partners Medical Associates, P.C.
St. Peter's Internal and Family Medicine
County:
Albany
Accepting New Patients:
Yes
Language(s):
English
Gender:
Female
(518) 458-8014

1444 Western Avenue
Suite B2
Albany, NY 12203

Mahon, Hiromi Kimura, MD

Listed in ,
St. Peter's Health Partners - St. Peter's Health Partners Medical Associates, P.C.
St. Peter's Internal and Pediatric Medicine
County:
Albany
Accepting New Patients:
Yes
Language(s):
English
Gender:
Female
(518) 452-0587

1444 Western Avenue
Suite D
Albany, NY 12203
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Online directory last updated on January 2, 2026

Download the Provider Directory (pdf), updated January 2, 2026

Page last updated on January 29, 2026