Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Healthsource Medical Services Pllc

Internal Medicine Physician in Islandia, NY · enumerated 2009 · authorized official John Folan, MD.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1891028650

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Registry record

Entity type Organization (Type 2)

Legal business name Healthsource Medical Services Pllc

Practice address 3001 Express Dr N Ste 200c, Islandia, NY, 11749

Phone (631) 435-0110

Enumeration date Sep 11, 2009

Last updated in NPPES Aug 11, 2014

Taxonomy & classification

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 167755 (NY) Primary

Authorized official

Name John Folan

Title MD

Phone (631) 435-0110

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Where is Healthsource Medical Services Pllc located?

The practice location on file with NPPES is in Islandia, NY.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2014-08-11. Verify at npiregistry.cms.hhs.gov.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-08-11.