Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. Michael Joseph Demaria, MD

Individual provider Gastroenterology Physician · NPI 1790780724

Dr. Michael Joseph Demaria, MD is an Internal Medicine in Glen Cove, New York. Qualified in 1983, 43 years ago. Practices with Harmony Health Care Long Island, a 26-clinician group and accepts Medicare assignment. Licensed in New York.

Years since qualifying
43
Licensed in
NY
In the registry since
2005
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

10 Medical Plz Ste 303
Glen Cove, NY 11542-2101
Phone: (516) 676-0239
Fax: (516) 676-0956
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence 160671 (NY)

Record details

NPI number1790780724
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJune 16, 2005
Last updated in NPPESNovember 9, 2012
Mailing address10 Medical Plz, Suite 303, Glen Cove, NY 11542-2101

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1983 (43 years in practice)
Group practice Harmony Health Care Long Island — 26 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount