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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Mastronardi, Theresa Marie, DO

Listed in ,
Cornerstone Family Healthcare
County:
Orange
Accepting New Patients:
Yes
Language(s):
English
Gender:
Female
(845) 446-4076

127 Main Street
Highland Falls, NY 10928

Mastyayeva, Yevgenia, PhD

Listed in ,
CHE Senior Psychological Services PC (CHE Behavioral Health)
CHE Senior Psychological Services PC
County:
Kings (Brooklyn)
Accepting New Patients:
Yes
Language(s):
English
Gender:
Female
(888) 515-3834

300 Cadman Plaza West
Floor 12
Brooklyn, NY 11201

Mastyayeva, Yevgenia, PhD

Listed in ,
Knapp Street Psychiatry, PC (CHE Behavioral Health)
Knapp Street Psychiatry, PC
County:
Kings (Brooklyn)
Accepting New Patients:
Yes
Language(s):
English
Gender:
Female
(888) 515-3834

2433 Knapp Street
Suite 306
Brooklyn, NY 11235

Masud, Ali, MD

Listed in ,
Sisters Of Charity Hospital
County:
Erie
Accepting New Patients:
Yes
Language(s):
English, Punjabi, Urdu
Gender:
Male
Other Specialties:
Internal Medicine, ICA
(716) 891-2400

2605 Harlem Road
Buffalo, NY 14225

Masud, Ali, MD

Listed in ,
Sisters Of Charity Hospital
County:
Erie
Accepting New Patients:
Yes
Language(s):
English, Punjabi
Gender:
Male
Other Specialties:
Internal Medicine, ICA
(716) 862-1000

2157 Main Street
Buffalo, NY 14214

Masyga, Marcy A, DO

Listed in ,
General Physician, PC
County:
Erie
Accepting New Patients:
Yes
Language(s):
English
Gender:
Female
(716) 656-4077

230 South Cascade Drive
Springville, NY 14141

Masyga, Nicholas P, DO

Listed in ,
General Physician, PC
County:
Erie
Accepting New Patients:
Yes
Language(s):
English
Gender:
Male
(716) 646-2590

5470 Camp Road
Suite 200
Hamburg, NY 14075

Mata, Armando, MD

Listed in ,
Our Lady of Lourdes Memorial Hospital, Inc.
Lourdes Riverside Medical
County:
Broome
Accepting New Patients:
Yes
Language(s):
English
(607) 798-6700

161 Riverside Drive
Suite 106
Binghamton, NY 13905

Mata, Brian A, MD

Listed in ,
Brooks-TLC Hospital System, Inc.
County:
Chautauqua
Language(s):
English
(716) 366-1111

529 Central Avenue
Dunkirk, NY 14048

Matala-Sullivan, Maria Elena, DO

Listed in ,
Lakeshore Primary Care Associates, LLP
County:
Erie
Accepting New Patients:
Yes
Language(s):
English
Gender:
Female
(716) 646-1084

4855 Camp Road
Suite 100
Hamburg, NY 14075

Matala-Sullivan, Maria Elena, DO

Listed in ,
Lakeshore Primary Care Associates, LLP
County:
Erie
Accepting New Patients:
Yes
Language(s):
English
Gender:
Female
(716) 683-4196

571 Terrace Boulevard
Depew, NY 14043

Matala Sullivan, Maria E, DO

Listed in ,
Lakeshore Primary Care Associates, LLP
Lakeshore Primary Care Associates
County:
Erie
Accepting New Patients:
Yes
Language(s):
English
Gender:
Female
(716) 646-1084

4855 Camp Road
Suite 100
Hamburg, NY 14075

Matatova, Marina, DO

Listed in ,
Hudson Dermatology, PC
Hudson Dermatology - Fishkill
County:
Dutchess
Accepting New Patients:
Yes
Language(s):
English
Gender:
Female
(845) 896-7730

969 Main Street
Suite D
Fishkill, NY 12424

Matatova, Marina, DO

Listed in ,
Hudson Dermatology, PC
Hudson Dermatology - Poughkeepsie
County:
Dutchess
Accepting New Patients:
Yes
Language(s):
English
Gender:
Female
(845) 473-2350

29 Fox Street
4th Floor
Poughkeepsie, NY 12601

Matatova, Marina, DO

Listed in ,
Hudson Dermatology, PC
Hudson Dermatology - Kingston
County:
Ulster
Accepting New Patients:
Yes
Language(s):
English
Gender:
Female
(845) 338-3200

40 Hurley Avenue
Suite 10
Kingston, NY 12401

Matatova, Marina, DO

Listed in ,
Hudson Dermatology, PC
Hudson Dermatology - Hudson
County:
Columbia
Accepting New Patients:
Yes
Language(s):
English
Gender:
Female
(518) 412-3300

98 Green Street
Suite 4
Hudson, NY 12534

Matatova, Marina, DO

Listed in ,
Hudson Dermatology, PC
Hudson Dermatology - Somers
County:
Westchester
Accepting New Patients:
Yes
Language(s):
English
Gender:
Female
(914) 617-8950

336 US Route 202
Suite 2
Somers, NY 10589

Matatova, Marina, DO

Listed in ,
Hudson Dermatology, PC
Hudson Dermatology - Tarrytown
County:
Westchester
Accepting New Patients:
Yes
Language(s):
English
Gender:
Female
(914) 829-8200

155 White Plains Road
Suite 109, East Wing
Tarrytown, NY 10591

Matatova, Marina, DO

Listed in ,
Hudson Dermatology, PC
Hudson Dermatology - Cornwall
County:
Orange
Accepting New Patients:
Yes
Language(s):
English
Gender:
Female
(845) 458-8188

55 Quaker Avenue
Suite 102
Cornwall, NY 12518

Matatova, Marina, DO

Listed in ,
Hudson Dermatology, PC
Hudson Dermatology - Nanuet
County:
Rockland
Accepting New Patients:
Yes
Language(s):
English
Gender:
Female
(845) 415-5575

408 Market Street
Nanuet, NY 10954

Mathai, Gimi, PA

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

315 South Manning Boulevard
Albany, NY 12208

Mathai, Gimi, RPA-C

Listed in ,
St. Peter's Health Partners - St. Peter's Health Partners Medical Associates, P.C.
Albany Thoracic and Esophageal Surgery
County:
Albany
Accepting New Patients:
Yes
Language(s):
English
Gender:
Female
(518) 525-8501

319 South Manning Boulevard
Suite 206
Albany, NY 12208

Matheson, Michelle, PA

Listed in ,
United Health Services Hospitals, Inc.
County:
Broome
Accepting New Patients:
Yes
Language(s):
English
Gender:
Female
(607) 763-8100

30 Harrison Street
Suite 455
Johnson City, NY 13790

Matheson, Michelle, PA

Listed in ,
United Medical Associates PC
County:
Otsego
Accepting New Patients:
No
Language(s):
English
Gender:
Female
(607) 432-5477

179 River Street
Oneonta, NY 13820

Matheson, Michelle, PA

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

30 Harrison Street
Suite 250
Johnson City, NY 13790
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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