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Healthcare Providers & Facilities in Central Islip, NY

Public healthcare directory of 488 individual practitioners and 66 healthcare facilities located in Central Islip, New York.

488 Practitioners
66 Facilities
70 Specialties

Medical Specialties in Central Islip

Select a specialty to view practitioner listings, practice locations, and qualifications.

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All Specialties in Central Islip

Specialties with enough public records for a comparison with U.S. figures, besides those named above, plus the 60 largest of 69 more with at least one listed practitioner. Number of practitioners in brackets.

Chiropractic Providers

Dental Providers

Dietary & Nutritional Service Providers

Emergency Medical Service Providers

Nursing Service Related Providers

Pharmacy Service Providers

Speech, Language and Hearing Service Providers

Featured Healthcare Providers in Central Islip

Practitioner profiles in Central Islip, NY with recent CMS Medicare or Open Payments data.

Alexis Chase

Physician Assistant

Medicare Accepted
225 Eastview Dr, Central Islip, NY
Phone: 6316651600
NPI 1205672789

Michele Seid , PMHNP

Nurse Practitioner - Psychiatric/Mental Health

159 Carleton Ave, Central Islip, NY
Phone: 6316502510
NPI 1023669348

Andrea Martinez Villalobos , RPA-C

Physician Assistant

Medicare Accepted
159 Carleton Ave, Central Islip, NY
Phone: 6316502510
NPI 1003280041

Dr. Carl-Henri Sanchez , MD

Internal Medicine

Medicare Accepted
108 W Suffolk Ave Unit B, Central Islip, NY
Phone: 6312314681
NPI 1790874964

Dr. Hope Arnoldt , DDS

Dentist - General Practice

109 Carleton Ave, Central Islip, NY
Phone: 6313482500
NPI 1225122641

Emma Garry , PA-C

Physician Assistant

225 Eastview Dr, Central Islip, NY
Phone: 7188330718
NPI 1477238921

Largest Cities in New York

Other New York cities with a full directory, by the number of active practitioners listed in NPPES.

How Central Islip compares with the U.S.

Compared with the U.S. as a whole, Central Islip has more Physician Assistants (2.4x) per 100,000 residents.

Central Islip has 1,272 active clinicians per 100,000 residents, compared with 2,198 for the U.S.

What these numbers mean

Clinicians per 100,000 residents compares places of different sizes. We count active clinicians who list a practice address in the area in the federal NPI registry (NPPES) and divide by the number of people who live there, according to the U.S. Census Bureau. The U.S. rate is the same calculation for the whole country.

A higher number does not mean it is easier to get an appointment, that wait times are shorter, or that care is better. It also does not show how many clinicians are accepting new patients or which insurance plans they take. A lower number does not by itself mean there is a shortage.

City counts use the city name in each clinician's practice address. That postal city can cover a larger or smaller area than the city limits the Census Bureau uses for population, and many clinicians list only one address even if they work in several places. Cities with hospitals or large medical centers often list more specialists than the number of residents alone would suggest, because patients also come from nearby areas.

88% of clinicians in Central Islip listed in the CMS Medicare file (37 of 42) accept Medicare assignment. That is similar to the New York share of 88%.

Only 42 of 488 active clinicians in Central Islip appear in the CMS Medicare file, so this share describes that smaller group.

What is Medicare assignment?

A clinician who accepts Medicare assignment agrees to take the Medicare-approved amount as full payment for services that Original Medicare covers. You usually still pay your deductible and coinsurance. This comes from the CMS Doctors and Clinicians file and applies to Original Medicare only. Medicare Advantage plans have their own provider networks. It does not show whether a clinician is taking new patients.

Some clinicians are listed as "may accept assignment," which means they can decide case by case. Clinicians without an assignment flag, or who are not in the CMS file, are not counted as accepting assignment. That does not mean they refuse Medicare. Ask the office before your visit.

21% of clinicians in Central Islip listed in the CMS Medicare file (9 of 42) have a CMS telehealth indicator, meaning their recent Medicare claims include telehealth services. That is similar to the New York share of 24%.

About the telehealth indicator

The telehealth indicator comes from CMS. It marks clinicians whose recent paid Medicare claims include services delivered by telehealth. It means a clinician has provided some services by telehealth, not that every visit can be done online. A clinician without the indicator may still offer telehealth, for example to patients who are not on Medicare. Ask the office which visits can be done by video or phone.

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. Medicare assignment and telehealth indicators: CMS Doctors and Clinicians National Downloadable File. Population: U.S. Census Bureau, American Community Survey 2020-2024 5-Year Estimates, Table B01003 (Total Population).

Central Islip CMS Healthcare & Financial Disclosures

CMS Part D Prescribers (2024), Open Payments (program year 2025), Medicare (PECOS) enrollment and Part B (2024) data for Central Islip, NY

Source: CMS public datasets

Healthcare operations in Central Islip, NY encompass 488 active individual practitioners and 66 registered medical facilities across 70 clinical specialties.

According to CMS Medicare Part D analytics for 2024, prescription drug volume in Central Islip accounts for $1.4 Million across 21,301 prescription claims. 71 local practitioners have a Medicare (PECOS) enrollment record. Open Payments data for program year 2025 list $0.0 Million in payments reported by companies to 26 local practitioners; a reported payment does not necessarily mean the financial relationship is improper.

Medicare Part D Prescriptions (2024) $1.4M 21,301 Prescription Claims Source: data.cms.gov
Open Payments Sunshine Act (2025) $0.0M 26 Recipients Disclosed A reported payment does not necessarily mean the financial relationship is improper. Source: openpaymentsdata.cms.gov
Medicare (PECOS) Enrollment 71 Enrolled Medicare Practitioners Source: data.cms.gov
Medicare Part B Allowed Volume (2024) $1.7M 29,217 Services Performed Source: data.cms.gov

CMS PECOS: Eligible to Order or Refer for Medicare in Central Islip

Part B Lab & Imaging Eligible: 58
Durable Medical Equipment (DME): 62
Home Health Agency (HHA): 42
Source: CMS Order and Referring