Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Margaret M Riley, PNP, FNP, MSN

Pediatric Nurse Practitioner in Babylon, NY · enumerated 2007 · practices at Samaritan Pediatric Services, P.C..

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1346451267

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Registry record

Entity type Individual (Type 1)

Name Margaret M Riley

Credential PNP, FNP, MSN

Sex Female

Practice address 655 Deer Park Ave, Babylon, NY, 11702

Phone (631) 321-2100

Fax (631) 321-2246

Enumeration date May 24, 2007

Last updated in NPPES May 23, 2008

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License F331231 (NY) Secondary

363LP0200X Pediatric Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License F380490 (NY) Primary

FNP · Family Nurse Practitioner: A nurse practitioner certified in family practice across the lifespan. About the FNP credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Margaret Riley practice?

The practice location on file with NPPES is in Babylon, NY. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Margaret Riley?

The National Provider Identifier (NPI) for Margaret Riley is 1346451267, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Michael Pugliese Pediatric Endocrinology Physician · Babylon, NY NPI 1477559748 Howard Balbi Pediatric Infectious Diseases Physician · Babylon, NY NPI 1942201900 Dmitriy Vaysman Pediatric Pulmonology Physician · Babylon, NY NPI 1245231232 Sarita Duchatelier Pediatrics Physician · Babylon, NY NPI 1295736262 David Gold Pediatric Gastroenterology Physician · Babylon, NY NPI 1801897657 Catherine Geniti Caronia Pediatric Critical Care Medicine Physician · Babylon, NY NPI 1790787778 Samaritan Pediatric Services, P.C. Pediatrics Physician · Babylon, NY NPI 1730308925 Heather Calendrillo Pediatric Nurse Practitioner · Babylon, NY NPI 1528253101

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-05-23.