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Obstetrics & Gynecology Specialists in Smithtown, NY

Browse 8 Obstetrics & Gynecology providers listed in NPPES with a practice address in Smithtown, New York.

8 Healthcare Providers

How Smithtown compares with the U.S.

8 active clinicians in Obstetrics & Gynecology list a practice address in Smithtown, NY in the NPI registry.

With fewer than 10 clinicians, rates per 100,000 residents are not reliable enough to compare.

Too few clinicians in Obstetrics & Gynecology in Smithtown are listed in the CMS Medicare file to report Medicare assignment or telehealth shares.

These figures summarize public federal data. They do not measure quality of care, appointment availability, or whether a clinician accepts your insurance or new patients. Registry addresses can be out of date. Please confirm details directly with the office and your plan. This information is not medical advice.

Prepared by T-MedInfo from NPPES, CMS and U.S. Census Bureau data. Questions or corrections: support@true-medinfo.com ยท Methodology

Sources: Clinician counts and practice addresses: NPPES NPI Registry, Centers for Medicare & Medicaid Services (CMS), data as of August 2026.

Showing 1โ€“8 of 8 providers
With recent CMS data first, then Aโ€“Z

Dr. Lisa Nelly Amorin , MD

Obstetrics & Gynecology

Active NPI Status Accepts Medicare Assignment
48 Route 25a Ste 207, Smithtown, NY 117871448
Phone: 6318623800
NPI Identifier 1972622520
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Dr. Theodore Blaszczyk , MD

Obstetrics & Gynecology

Active NPI Status Accepts Medicare Assignment
200 E Main St Ste 1e, Smithtown, NY 11787
Phone: 6312654567
NPI Identifier 1962588640
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Dr. Polly Kanganis , MD

Obstetrics & Gynecology

Active NPI Status Accepts Medicare Assignment
200 E Main St Ste 1e, Smithtown, NY 117872812
Phone: 6312654567
NPI Identifier 1477644698
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Dr. Nicholas John Kleopoulos M.d. , MD

Obstetrics & Gynecology

Active NPI Status
200 E Main St, Smithtown, NY 117872812
Phone: 6312654567
NPI Identifier 1730248659
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Dr. Charles T Mann , MD

Obstetrics & Gynecology

Active NPI Status
48 Route 25a Ste 207, Smithtown, NY 117871448
Phone: 6318623800
NPI Identifier 1043320344
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Dr. Jennifer Slagus , MD

Obstetrics & Gynecology

Active NPI Status Accepts Medicare Assignment
48 Route 25a Ste 207, Smithtown, NY 117871448
Phone: 6318623800
NPI Identifier 1023428455
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Dr. Michael Gentilesco , MD

Obstetrics & Gynecology

Active NPI Status
48 Route 25a Ste 207, Smithtown, NY 117871448
Phone: 6318623800
NPI Identifier 1932219110
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Dr. Dinesh Lalji Vadher , MD

Obstetrics & Gynecology

Active NPI Status
48 Route 25a, Suite 202, Smithtown, NY 117872814
Phone: 6318623610
NPI Identifier 1861563504
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Frequently Asked Questions about Obstetrics & Gynecology in Smithtown

How do I check a Obstetrics & Gynecology practitioner's license?

Each practitioner profile shows the NUCC taxonomy code and any state license number the practitioner reported to NPPES, plus a link to the New York licensing board lookup. NPPES entries are self-reported; current license status is published only by the state board.

Why is a practitioner missing from this list?

This list shows NPI records that are active in NPPES. A deactivated NPI keeps its profile with the deactivation date and practice history; find it with the site search by name or NPI number.