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Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 90 days.

ERIN TIERNEY PA-C
NPI 1306740006
Physician Assistant in Smithtown, NY

Active since October 06, 2026
994 W JERICHO TPKE, SMITHTOWN, NY 11787(631) 543-1440 Get Directions Write a Review

NPPES record added: October 6, 2026. Verified against the NPPES registry weekly; last sync: October 11, 2026.

About Erin Tierney Pa-c NPPES

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

ERIN TIERNEY PA-C (NPI 1306740006) is an individual physician assistant in Smithtown, New York, licensed in New York (1250276) and active in the NPI registry since October 2026.

NPPES Registry Identity

NPI1306740006
Entity TypeIndividualFemale
Primary Taxonomy363A00000X
Provider Legal NameERIN TIERNEYCredential: PA-C
Location Address994 W JERICHO TPKESmithtown, NY 11787-3235
Mailing Address33 Alhambra RdMassapequa, NY 11758-6603 · (631) 543-1440
Phone(631) 543-1440
Sole ProprietorNo
Enumeration DateOctober 6, 2026
NPPES CertifiedOctober 6, 2026
✔ NPI 1306740006 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
License✔ Licensed in NY · 1250276
Definition
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
994 W JERICHO TPKE, Smithtown, NY 11787
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Other Providers at the Same Location NPPES 19

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

KARIN EVA BURKHARD MD
Psychiatry & Neurology (Psychiatry)
994 W JERICHO TPKE, SUITE 202
SMITHTOWN, NY 11787
Suffolk County (631) 864-9200
MRS. RACHEL ANNE DEMAIO FNP
Nurse Practitioner (Family)
994 W JERICHO TPKE
SMITHTOWN, NY 11787
Suffolk County (631) 265-4200
TIMOTHY D GROTH M.D.
Anesthesiology (Pain Medicine)
994 W JERICHO TPKE, SUITE 104
SMITHTOWN, NY 11787
Suffolk County (631) 543-1440
THOMAS YARROBINO, PT, PC
Physical Medicine & Rehabilitation
994 W JERICHO TPKE, SUITE 202A
SMITHTOWN, NY 11787
Suffolk County (631) 864-6008
ALLISON WALLSHEIN
Registered Nurse (Psychiatric/Mental Health)
994 W JERICHO TPKE, SUITE 202
SMITHTOWN, NY 11787
Suffolk County (631) 470-5575
LLOYD D. LANDSMAN, M.D.P.C.
Plastic Surgery
994 W JERICHO TPKE
SMITHTOWN, NY 11787
Suffolk County (631) 864-4111
MICHELE A MORGANSTERN PH.D.
Psychologist (Clinical)
994 W JERICHO TPKE, SUITE 202
SMITHTOWN, NY 11787
Suffolk County (631) 786-8129
DELTA SLEEP CENTER
Sleep Specialist, PhD
994 W JERICHO TPKE
SMITHTOWN, NY 11787
Suffolk County (631) 787-2386

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 Erin Tierney's NPI number?

The NPI number for Erin Tierney is 1306740006. It was assigned to this individual provider in the NPPES registry on October 6, 2026.

Where is Erin Tierney located?

Erin Tierney practices at 994 W Jericho Tpke, Smithtown, NY 11787. The listed phone number is (631) 543-1440.

What is Erin Tierney's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

When was this NPI record last updated?

The NPPES record for Erin Tierney was last updated on October 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.