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

John Erkkinen, MD

Individual provider Gastroenterology Physician · NPI 1154429918

John Erkkinen, MD is a Gastroenterology Physician in Portland, Maine. Licensed in Maine. Registered with an NPI since 2006.

Licensed in
ME
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

161 Marginal Way
Portland, ME 04101-2438
Phone: (207) 773-7964
Fax: (207) 773-9073
Show map & directions

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

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence 012834 (ME)

Record details

NPI number1154429918
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 20, 2006
Last updated in NPPESDecember 23, 2019
Certification dateDecember 23, 2019
Mailing address161 Marginal Way, Portland, ME 04101-2438

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