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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. TIMOTHY MAILLOUX M.D.
NPI 1215915145
Internal Medicine in Oceanside, NY

Active since December 30, 2005
2380 ROCKVILLE CENTRE PKWY, OCEANSIDE, NY 11572(516) 764-9501(516) 764-0865 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. Timothy Mailloux M.d. NPPES

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

DR. TIMOTHY MAILLOUX M.D. (NPI 1215915145) is an individual internal medicine provider in Oceanside, New York, licensed in New York (140037) and active in the NPI registry since December 2005.

NPPES Registry Identity

NPI1215915145
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. TIMOTHY MAILLOUXCredential: M.D.
Location Address2380 ROCKVILLE CENTRE PKWYOceanside, NY 11572-1621
Mailing Address2380 Rockville Centre PkwyOceanside, NY 11572-1621 · (516) 764-9501 · Fax (516) 764-0865
Phone(516) 764-9501
Fax(516) 764-0865
Sole ProprietorNo
Enumeration DateDecember 30, 2005
Last NPPES UpdateJuly 13, 2026
✔ NPI 1215915145 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in NY · 140037
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.
2380 ROCKVILLE CENTRE PKWY, Oceanside, NY 11572
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Other Identifiers 1

Medicaid00485227NY

Other Providers at the Same Location NPPES 2

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

MRS. MADELINE CATHERINE COZZI-GOTTLIEB FNP
Nurse Practitioner (Family)
2380 ROCKVILLE CENTRE PKWY
OCEANSIDE, NY 11572
Nassau County (516) 764-9501
JUDY PORTELLI NP-C
Nurse Practitioner (Family)
2380 ROCKVILLE CENTRE PKWY
OCEANSIDE, NY 11572
Nassau County (516) 764-9501

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 Timothy Mailloux's NPI number?

The NPI number for Timothy Mailloux is 1215915145. It was assigned to this individual provider in the NPPES registry on December 30, 2005.

Where is Timothy Mailloux located?

Timothy Mailloux practices at 2380 Rockville Centre Pkwy, Oceanside, NY 11572. The listed phone number is (516) 764-9501.

What is Timothy Mailloux's specialty?

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

When was this NPI record last updated?

The NPPES record for Timothy Mailloux was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 36 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.