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

Individual provider Gastroenterology Physician · NPI 1386619393

John D Long, MD is a Gastroenterology in Williamsburg, Virginia. Graduated from Eastern Virginia Medical School in 1989, 37 years ago. Practices with Clinch Professional Physician Services LLC, a 45-clinician group and accepts Medicare assignment. Licensed in Virginia.

Years since qualifying
37
Trained at
Eastern Virginia Medical School
Licensed in
VA
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

457 McLaws Cir
Williamsburg, VA 23185-5645
Phone: (757) 221-0750
Fax: (757) 229-5168
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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 0101234912 (VA)

Record details

NPI number1386619393
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedFebruary 22, 2006
Last updated in NPPESDecember 19, 2014
Mailing address856 J Clyde Morris Blvd, Suite A, Newport News, VA 23601-1318

Medicare enrollment

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

Medicare specialtyGASTROENTEROLOGY
Also practisesINTERNAL MEDICINE
Medical schoolEASTERN VIRGINIA MEDICAL SCHOOL
Graduated 1989 (37 years in practice)
Group practice Clinch Professional Physician Services Llc — 45 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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