1. Home
  2. Directory
  3. New York
  4. Stony Brook
  5. Nurse Practitioner
  6. NPI Profile
Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 90 days.

MARY KRISTIN THAYER FNP-C
NPI 1457268435
Nurse Practitioner - Family in Stony Brook, NY

Active since August 26, 2026
101 NICOLLS RD, STONY BROOK, NY 11794(631) 444-4686 Get Directions Write a Review

NPPES record added: August 26, 2026. Verified against the NPPES registry weekly; last sync: August 30, 2026.

About Mary Kristin Thayer Fnp-c NPPES

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

MARY KRISTIN THAYER FNP-C (NPI 1457268435) is an individual family provider in Stony Brook, New York, licensed in New York (360238) and active in the NPI registry since August 2026.

NPPES Registry Identity

NPI1457268435
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameMARY KRISTIN THAYERCredential: FNP-C
Location Address101 NICOLLS RDStony Brook, NY 11794-0001
Mailing Address101 Nicolls RdStony Brook, NY 11794-0001
Phone(631) 444-4686
Sole ProprietorNo
Enumeration DateAugust 26, 2026
NPPES CertifiedAugust 26, 2026
✔ NPI 1457268435 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
License✔ Licensed in NY · 360238
101 NICOLLS RD, Stony Brook, NY 11794
Open in Google Maps ↗

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.

NARINDER SINGH M.D.
Internal Medicine
101 NICOLLS RD
STONY BROOK, NY 11794
Suffolk County (631) 444-4000
DR. KANHAI FARRAKHAN MD
Internal Medicine (Gastroenterology)
101 NICOLLS RD
STONY BROOK, NY 11794
Suffolk County (631) 444-0580
MS. HAYLEY ALEXANDRA MENA LMSW
Social Worker (Clinical)
101 NICOLLS RD
STONY BROOK, NY 11794
Suffolk County (516) 761-4107
MRS. HEATHER MARIE CALIGIURI ANP
Nurse Practitioner (Adult Health)
101 NICOLLS RD
STONY BROOK, NY 11794
Suffolk County (631) 631-4449
MR. SAM TARIK MENDOUNE I NP
Nurse Practitioner (Adult Health)
101 NICOLLS RD
STONY BROOK, NY 11794
Suffolk County (631) 335-1657
ALEXIE LESSING
Student in an Organized Health Care Education/Training Program
101 NICOLLS RD
STONY BROOK, NY 11794
Suffolk County (631) 444-4686
DR. BENJAMIN RISMANY MD
Student in an Organized Health Care Education/Training Program
101 NICOLLS RD
STONY BROOK, NY 11794
Suffolk County (631) 444-1791
JULIA RYAN MD
Student in an Organized Health Care Education/Training Program
101 NICOLLS RD
STONY BROOK, NY 11794
Suffolk County (631) 689-8333

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 Mary Thayer's NPI number?

The NPI number for Mary Thayer is 1457268435. It was assigned to this individual provider in the NPPES registry on August 26, 2026.

Where is Mary Thayer located?

Mary Thayer practices at 101 Nicolls Rd, Stony Brook, NY 11794. The listed phone number is (631) 444-4686.

What is Mary Thayer's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

When was this NPI record last updated?

The NPPES record for Mary Thayer was last updated on August 26, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.