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

Olga Marsillio, DNP

Individual provider Certified Registered Nurse Anesthetist · NPI 1841558897

Olga Marsillio, DNP is a Certified Registered Nurse Anesthetist (CRNA) in New London, Connecticut. Qualified in 2014, 12 years ago. Practices with Dartmouth-Hitchcock Clinic, a 1,430-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Connecticut and New Hampshire.

Years since qualifying
12
Licensed in
CT, NH
In the registry since
2012
Specialties on file
2
What do these letters mean?
DNP — Doctor of Nursing Practice
The highest clinical degree in nursing.

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Practice location Address checks out

365 Montauk Ave
New London, CT 06320-4700
Phone: (860) 442-0711
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 1 Medical Center Dr, Lebanon, NH 03756-1000 — (603) 650-5000

Specialties & licences

Certified Registered Nurse Anesthetist (primary) Taxonomy 367500000X · Licence 90139 (CT)
Certified Registered Nurse Anesthetist Taxonomy 367500000X · Licence 116941-23 (NH)

Record details

NPI number1841558897
Entity typeIndividual (Type 1)
GenderFemale
Credentials DNP
Sole proprietorYes
NPI enumeratedApril 27, 2012
Last updated in NPPESMarch 11, 2026
Certification dateMarch 11, 2026

Medicare enrollment

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

Medicare specialtyCERTIFIED REGISTERED NURSE ANESTHETIST (CRNA)
Medical schoolOTHER
Graduated 2014 (12 years in practice)
Group practice Dartmouth-Hitchcock Clinic — 1430 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Other providers in New London