Shirley Ponnaiya, DO

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

335729 Issued in NY

Practice address

1 Heroes Way
Riverhead, NY 11901-2054

Phone

(631) 506-4311

NPI assigned

Apr 6, 2022

Last updated

Aug 20, 2025By the provider in NPPES

Sex

Female

Sole proprietor

No

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Enrolled in NY

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Specialty

Internal Medicine

Education

Rocky Vista University College of Osteopathic Med, 2022

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Central Suffolk HospitalGroup PAC ID 4981508082, 94 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Peconic Bay Medical Center Hospital, Riverhead, NY, CCN 330107
• NS/Lij HS Southside Hospital Hospital, Bay Shore, NY, CCN 330043

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Osteopathy

State licenses

Practice roles

Locations

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• Central Suffolk Hospital

  dba Peconic Bay Medical Center Professional Group Practice

  • Hospitalist Physician
  • Riverhead, NY
  • NPI 1043402050
  Medicare reassignment Care Compare group NPD
• Central Suffolk Hosptial

  dba Peconic Bay Medical Center

  • Nurse Practitioner
  • Riverhead, NY
  • NPI 1841637741
  NPD
• Central Suffolk Hospital

  dba Peconic Bay Medical Center

  • General Acute Care Hospital
  • Riverhead, NY
  • NPI 1386649804
  NPD (past)

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

• Central Suffolk Hospital

  dba Peconic Bay Medical Center

  • General Acute Care Hospital
  • Riverhead, NY
  • NPI 1386649804
  Care Compare affiliation
• South Shore University Hospital

  • General Acute Care Hospital
  • Bay Shore, NY
  • NPI 1457369381
  Care Compare affiliation

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1649203200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1755648000000",
    "number": "1235870676",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1 HEROES WAY",
            "city": "RIVERHEAD",
            "state": "NY",
            "postal_code": "119012054",
            "telephone_number": "631-506-4311"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1 HEROES WAY",
            "city": "RIVERHEAD",
            "state": "NY",
            "postal_code": "119012054",
            "telephone_number": "631-506-4311"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "100 Hospital Rd Ste 201",
            "address_purpose": "LOCATION",
            "city": "East Patchogue",
            "state": "NY",
            "postal_code": "117728814",
            "country_code": "US",
            "telephone_number": "631-475-6900",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "PONNAIYA",
        "first_name": "SHIRLEY",
        "credential": "DO",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2022-04-06",
        "last_updated": "2025-08-20",
        "certification_date": "2025-08-20",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": "NU",
            "license": null,
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "NY",
            "license": "335729",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Peter Vincent Piraino, MSW
• Louis Donald Pizzarello, M.D.
• Adina Plutchok, RN
• Stella Kristina Pohanis, MD
• Alexandra Taylor Poje
• Susan Popow, LCSW
• Roy Prashad, D.O.
• Michael John Pratt, LMSW
• Scott M. Press, MD FACS
• Priscilla a. Lingard, LCSW Casac P.C. (Center for Legal And Social Empowerment)

• Internal Medicine Physician in Riverhead, NY
• Providers in Riverhead, NY by specialty
• Internal Medicine Physician in New York

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 20, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.