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

Rong J Guan, MD LLC

Organization Gastroenterology Physician · NPI 1003169327

Rong J Guan, MD LLC is a Gastroenterology Physician in Boston, Massachusetts. Licensed in Massachusetts. Registered with an NPI since 2012.

Licensed in
MA
In the registry since
2012
What do these letters mean?
LLC — Limited liability company
A form of business registration, not a clinical qualification.

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Practice location Address checks out

30 Kneeland St Fl 5
Boston, MA 02111-1528
Phone: (617) 290-9881
Fax: (617) 350-6555
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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 150086 (MA)

Record details

NPI number1003169327
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Rong Guan — Member · (617) 290-9881
NPI enumeratedOctober 24, 2012
Last updated in NPPESNovember 2, 2012
Mailing address30 Kneeland Street, 5th Floor, Boston, MA 20111-1528

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