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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. ANN MARGARET SANTA-INES M.D.
NPI 1437550340
Pediatrics - Pediatric Cardiology in Roslyn, NY

Active since September 10, 2014PECOS Enrolled
100 PORT WASHINGTON BLVD, ROSLYN, NY 11576(516) 365-3340(516) 908-4214 Get Directions Write a Review

NPPES record last updated: September 29, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Sep 29, 2026, Mar 2, 2023, Nov 2, 2016 (3 updates tracked since 2016).

About Dr. Ann Margaret Santa-ines M.d. NPPES

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

DR. ANN MARGARET SANTA-INES M.D. (NPI 1437550340) is an individual pediatric cardiology provider in Roslyn, New York, licensed in New York (285566) and active in the NPI registry since September 2014. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1437550340
Entity TypeIndividualFemale
Primary Taxonomy2080P0202X
Provider Legal NameDR. ANN MARGARET SANTA-INESCredential: M.D.
Location Address100 PORT WASHINGTON BLVDRoslyn, NY 11576-1347
Mailing Address100 Port Washington BlvdRoslyn, NY 11576-1347 · (516) 365-3340 · Fax (516) 908-4214
Phone(516) 365-3340
Fax(516) 908-4214
Sole ProprietorNo
Enumeration DateSeptember 10, 2014
Last NPPES UpdateSeptember 29, 20263 updates tracked since enumeration
NPPES CertifiedMarch 2, 2023
✔ NPI 1437550340 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatrics · Pediatric CardiologyAllopathic & Osteopathic Physicians
Taxonomy Code2080P0202X
License✔ Licensed in NY · 285566
Definition
A pediatric cardiologist provides comprehensive care to patients with cardiovascular problems. This specialist is skilled in selecting, performing and evaluating the structural and functional assessment of the heart and blood vessels, and the clinical evaluation of cardiovascular disease.
Also ListedPediatricsTaxonomy 208000000X · License 285566 (NY)
100 PORT WASHINGTON BLVD, Roslyn, NY 11576
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Ann Margaret Santa-ines M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Medicare Billing Reassignments

2

Medicare enrollment records show Ann Margaret Santa-ines reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Pediatric Cardiology Of Li PC
0.1 mi
Pediatric Cardiology
100 PORT WASHINGTON BLVD, SUITE 108
Roslyn, NY 11576
  • Reassigned Medicare billing, New York enrollment
  • 5 clinicians in this Medicare group
NPI 1003883653 (516) 365-3340
Cardiac Ekg Interpretation, P. C.
21 mi
Cardiovascular Disease
1000 MONTAUK HWY
West Islip, NY 11795
  • Reassigned Medicare billing, New York enrollment
  • 119 clinicians in this Medicare group
NPI 1386665644 (631) 376-3000

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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.

ERIN MARIE MARKEY R.N.,M.S.,APRN-BC
Nurse Practitioner (Acute Care)
100 PORT WASHINGTON BLVD
ROSLYN, NY 11576
Nassau County (516) 562-6351
DR. MENA YACOUB D.O
Internal Medicine (Clinical Cardiac Electrophysiology)
100 PORT WASHINGTON BLVD
ROSLYN, NY 11576
Nassau County (718) 689-0316
JULIA COHEN
Physician Assistant
100 PORT WASHINGTON BLVD
ROSLYN, NY 11576
Nassau County (516) 562-6000
PEDIATRIC CARDIOLOGY OF LI PC
Pediatrics (Pediatric Cardiology)
100 PORT WASHINGTON BLVD, SUITE 108
ROSLYN, NY 11576
Nassau County (516) 365-3340
PATRICK BRENNAN P.A.
Physician Assistant
100 PORT WASHINGTON BLVD
ROSLYN, NY 11576
Nassau County (516) 338-5358
KENNETH ZIELINSKI P.A.
Physician Assistant
100 PORT WASHINGTON BLVD
ROSLYN, NY 11576
Nassau County (516) 338-5358
DR. STEFAN MILTON MUEHLBAUER M.D., PHD
Emergency Medicine
100 PORT WASHINGTON BLVD, DEPT OF EMERGENCY MEDICINE
ROSLYN, NY 11576
Nassau County (165) 626-6055
MRS. MELISSA A MORELLI FNP-C
Nurse Practitioner (Family)
100 PORT WASHINGTON BLVD, ST. FRANCIS HOSPITAL EMERGENCY ROOM
ROSLYN, NY 11576
Nassau County (516) 562-6600

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 Ann Margaret Santa-ines's NPI number?

The NPI number for Ann Margaret Santa-ines is 1437550340. It was assigned to this individual provider in the NPPES registry on September 10, 2014.

Where is Ann Margaret Santa-ines located?

Ann Margaret Santa-ines practices at 100 Port Washington Blvd, Roslyn, NY 11576. The listed phone number is (516) 365-3340.

What is Ann Margaret Santa-ines's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Cardiology, with taxonomy code 2080P0202X.

Is Ann Margaret Santa-ines enrolled in Medicare?

Yes. Ann Margaret Santa-ines is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Ann Margaret Santa-ines's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ann Margaret Santa-ines reassigns Medicare benefits to 2 organizations: Pediatric Cardiology Of Li PC (Roslyn, NY) and Cardiac Ekg Interpretation, P. C. (West Islip, NY). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Ann Margaret Santa-ines's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Ann Margaret Santa-ines was last updated on September 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 41 days 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.