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

Dr. John Michael Costable Jr., MD

Individual provider Gastroenterology Physician · NPI 1043251184

Dr. John Michael Costable Jr., MD is a Gastroenterology in Great Neck, New York. Graduated from State University of New York at Stony Brook, School of Medicine in 1992, 34 years ago. Practices with North Shore Medical Group of the Mount Sinai School of Medicine, a 323-clinician group and accepts Medicare assignment. Licensed in New York.

Years since qualifying
34
Trained at
State University of New York at Stony Brook, School of Medicine
Licensed in
NY
In the registry since
2006
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

600 Northern Blvd Ste 106
Great Neck, NY 11021-5200
Phone: (516) 466-6075
Fax: (516) 466-6044
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence 198554 (NY)

Record details

NPI number1043251184
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 9, 2006
Last updated in NPPESJuly 13, 2026

Medicare enrollment

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

Medicare specialtyGASTROENTEROLOGY
Also practisesINTERNAL MEDICINE
Medical schoolSTATE UNIVERSITY OF NEW YORK AT STONY BROOK, SCHOOL OF MEDICINE
Graduated 1992 (34 years in practice)
Group practice North Shore Medical Group Of The Mount Sinai School Of Medicine — 323 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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