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

Irim A. Massay, MD

Individual provider Hospitalist Physician · NPI 1619931110

Irim A. Massay, MD is a Hospitalist Physician in Saint Charles, Missouri. Licensed in Missouri. Registered with an NPI since 2006.

Licensed in
MO
In the registry since
2006
Specialties on file
2
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

300 1st Capitol Dr
Saint Charles, MO 63301-2844
Phone: (314) 317-0600
Fax: (314) 317-0606
Show map & directions

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

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 2008017169 (MO)
Hospitalist Physician Taxonomy 208M00000X · Licence 2008017169 (MO)

Record details

NPI number1619931110
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 13, 2006
Last updated in NPPESJune 16, 2018

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