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HARBOR VIEW MEDICAL SERVICES PC
NPI 1306631742
Internal Medicine in Port Jefferson, NY

Active since April 14, 2025
125 OAKLAND AVE STE 204, PORT JEFFERSON, NY 11777(631) 686-2526 Get Directions Write a Review

NPPES record last updated: April 14, 2025. Verified against the NPPES registry weekly; last sync: October 04, 2026.

About Harbor View Medical Services Pc NPPES

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

HARBOR VIEW MEDICAL SERVICES PC (NPI 1306631742), doing business as Mather Medical Group, is a healthcare organization registered as an internal medicine in Port Jefferson, New York and active in the NPI registry since April 2025. The organization maintains 13 additional practice locations and lists Sharlene Bronstorph, Director, as its authorized official.

NPPES Registry Identity

NPI1306631742
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameHARBOR VIEW MEDICAL SERVICES PC
Location Address125 OAKLAND AVE STE 204Port Jefferson, NY 11777-2130
Mailing Address125 Oakland Ave Ste 204Port Jefferson, NY 11777-2130 · (631) 686-2526
Phone(631) 686-2526
Organization SubpartNo
Authorized OfficialSharlene BronstorphDirector · (516) 719-5755
Enumeration DateApril 14, 2025
NPPES CertifiedApril 14, 2025
✔ NPI 1306631742 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
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.
125 OAKLAND AVE STE 204, Port Jefferson, NY 11777
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Other Names 1

Doing Business AsMather Medical Group

Secondary Practice Locations 13

Location 15225 Nesconset Hwy Bldg 1314Port Jefferson Station, NY 11776-2053 · Phone (631) 686-2526
Location 2625 Belle Terre RdPort Jefferson, NY 11777-2316 · Phone (631) 686-2526
Location 3125 Oakland Ave Ste 203Port Jefferson, NY 11777-2130 · Phone (631) 686-2526
Location 470 N Country Rd Ste 101Port Jefferson, NY 11777-2161 · Phone (631) 686-2526
Location 570 N Country Rd Ste 102Port Jefferson, NY 11777-2161 · Phone (631) 686-2526
Location 6210 Bellemeade RdEast Setauket, NY 11733-3522 · Phone (631) 686-2526
Location 79 Medical DrPort Jefferson Station, NY 11776-1591 · Phone (631) 686-2526
Location 81500 Route 112 Ste APort Jefferson Station, NY 11776-8055 · Phone (631) 686-2526
Location 92500 Nesconset Hwy Bldg 2Stony Brook, NY 11790-2555 · Phone (631) 686-2526
Location 1075 N Country Rd Ste 1001Port Jefferson, NY 11777-2119 · Phone (631) 686-2526
Location 113 Technology Dr Ste 100East Setauket, NY 11733-4046 · Phone (631) 686-2526
Location 12745 Route 25A Ste ARocky Point, NY 11778-6603 · Phone (631) 686-2526
Location 134 Technology Dr Ste 120East Setauket, NY 11733-4068 · Phone (631) 686-2526

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

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.

PRISCILLA PERSAUD M.D.
Internal Medicine
125 OAKLAND AVE STE 204
PORT JEFFERSON, NY 11777
Suffolk County (631) 686-1400
MICHAEL KENNETH TAX LPN
Licensed Practical Nurse
125 OAKLAND AVE STE 204
PORT JEFFERSON, NY 11777
Suffolk County (631) 686-1414

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 Harbor View Medical Services PC's NPI number?

The NPI number for Harbor View Medical Services PC is 1306631742. It was assigned to this organization in the NPPES registry on April 14, 2025. The provider is doing business as Mather Medical Group.

Where is Harbor View Medical Services PC located?

Harbor View Medical Services PC is located at 125 Oakland Ave Ste 204, Port Jefferson, NY 11777. The listed phone number is (631) 686-2526.

What is Harbor View Medical Services PC'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 Harbor View Medical Services PC was last updated on April 14, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 months 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.