SHIRLEY PONNAIYA DO
NPI 1235870676
Internal Medicine in Riverhead, NY

Active since April 06, 2022PECOS EnrolledAccepts Medicare Assignment
1 HEROES WAY, RIVERHEAD, NY 11901(631) 506-4311 Get Directions Write a Review

NPPES record last updated: August 20, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Shirley Ponnaiya Do NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

SHIRLEY PONNAIYA DO (NPI 1235870676) is an individual internal medicine provider in Riverhead, New York, licensed in New York (335729) and active in the NPI registry since April 2022. She is enrolled in Medicare PECOS, is affiliated with Ns/lij Hs Southside Hospital, and maintains a secondary practice location in East Patchogue.

NPPES Registry Identity

NPI1235870676
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameSHIRLEY PONNAIYACredential: DO
Location Address1 HEROES WAYRiverhead, NY 11901-2054
Mailing Address1 Heroes WayRiverhead, NY 11901-2054 · (631) 506-4311
Sole ProprietorNo
Medical School CMSRocky Vista University College Of Osteopathic MedGraduated 2022
Enumeration DateApril 6, 2022
Last NPPES UpdateAugust 20, 2025
NPPES CertifiedAugust 20, 2025
NPI 1235870676 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License Licensed in NY · 335729
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
1 HEROES WAY, Riverhead, NY 11901

Secondary Practice Location 1

Location 1100 Hospital Rd Ste 201East Patchogue, NY 11772-8814 · Phone (631) 475-6900

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Shirley Ponnaiya Do is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID8224546494
PECOS Enrollment IDI20250731002102
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Ns/Lij Hs Southside Hospital

Acute Care Hospitals · Bay Shore, NY
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number330043
Location301 East Main StreetBay Shore, NY 11706 · Suffolk County
Emergency services Birthing friendly

Peconic Bay Medical Center

Acute Care Hospitals · Riverhead, NY
3/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number330107
Location1 Heros WayRiverhead, NY 11901 · Suffolk County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 11901 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$154.28 typical visit price
range $67.40 – $203.53
Typical copayment $38.57 (range $16.85 – $50.88)
Most-billed visit code 99204
Established Patient
$117.62 typical visit price
range $21.66 – $164.45
Typical copayment $29.40 (range $5.41 – $41.11)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Student in an Organized Health Care Education/Training Program
1 HEROES WAY
RIVERHEAD, NY 11901
Student in an Organized Health Care Education/Training Program
1 HEROES WAY
RIVERHEAD, NY 11901
Physician Assistant
1 HEROES WAY
RIVERHEAD, NY 11901
Student in an Organized Health Care Education/Training Program
1 HEROES WAY
RIVERHEAD, NY 11901
Student in an Organized Health Care Education/Training Program
1 HEROES WAY
RIVERHEAD, NY 11901
Student in an Organized Health Care Education/Training Program
1 HEROES WAY
RIVERHEAD, NY 11901
Physician Assistant
1 HEROES WAY
RIVERHEAD, NY 11901
Physician Assistant
1 HEROES WAY
RIVERHEAD, NY 11901

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Shirley Ponnaiya's NPI number?

The NPI number for Shirley Ponnaiya is 1235870676. It was assigned to this individual provider in the NPPES registry on April 6, 2022.

Where is Shirley Ponnaiya located?

Shirley Ponnaiya practices at 1 Heroes Way, Riverhead, NY 11901. The listed phone number is (631) 506-4311.

What is Shirley Ponnaiya's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Shirley Ponnaiya enrolled in Medicare?

Yes. Shirley Ponnaiya is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Is Shirley Ponnaiya affiliated with any hospitals?

According to CMS data, Shirley Ponnaiya is affiliated with Ns/Lij Hs Southside Hospital and Peconic Bay Medical Center.

When was this NPI record last updated?

The NPPES record for Shirley Ponnaiya was last updated on August 20, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.