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

Marilyne Cadieux, DO

Individual provider Internal Medicine Physician · NPI 1346760568

Marilyne Cadieux, DO is an Internal Medicine in Washington, District of Columbia. Qualified in 2017, 9 years ago. Practices with Medstar Medical Group II LLC, a 3,717-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in District of Columbia, Florida and Rhode Island.

Years since qualifying
9
Licensed in
DC, FL, RI
In the registry since
2017
Specialties on file
3
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

110 Irving St NW
Washington, DC 20010-3017
Phone: (202) 877-7000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 759 Chestnut St, Springfield, MA 01199-1001 — (413) 794-0000
  • 593 Eddy St, Providence, RI 02903-4923 — (401) 444-5248

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence DO035006 (DC)
Internal Medicine Physician Taxonomy 207R00000X · Licence OS21456 (FL)
Geriatric Medicine (Internal Medicine) Physician Taxonomy 207RG0300X · Licence LP04877 (RI)

Record details

NPI number1346760568
Entity typeIndividual (Type 1)
GenderFemale
Credentials DO
Sole proprietorYes
NPI enumeratedJune 20, 2017
Last updated in NPPESOctober 1, 2024
Certification dateOctober 1, 2024

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2017 (9 years in practice)
Group practice Medstar Medical Group Ii Llc — 3717 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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