Olga Marsillio, DNP - Medicare Certified Registered Nurse Anesthetist (crna) in New London, CT

Olga Marsillio, DNP is a medicare enrolled "Nurse Anesthetist, Certified Registered" in New London, Connecticut. She graduated from nursing school in 2014 and has 12 years of diverse experience with area of expertise as Certified Registered Nurse Anesthetist (crna). She is a member of the group practice Dartmouth-hitchcock Clinic, Yale University and her current practice location is 365 Montauk Ave, New London, Connecticut. You can reach out to her office (for appointments etc.) via phone at (860) 442-0711.

Olga Marsillio is licensed to practice in Connecticut (license number 90139) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1841558897.

Contact Information

Olga Marsillio, DNP
365 Montauk Ave,
New London, CT 06320-4700
(860) 442-0711
Not Available

Map and Direction




Provider's Profile

Full NameOlga Marsillio
GenderFemale
SpecialityCertified Registered Nurse Anesthetist (crna)
Experience12 Years
Location365 Montauk Ave, New London, Connecticut
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Olga Marsillio graduated from nursing school in 2014
  NPI Data:
  • NPI Number: 1841558897
  • Provider Enumeration Date: 04/27/2012
  • Last Update Date: 03/11/2026
  Medicare PECOS Information:
  • PECOS PAC ID: 0143486357
  • Enrollment ID: I20260320001706

Medical Identifiers

Medical identifiers for Olga Marsillio such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1841558897NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
367500000XNurse Anesthetist, Certified Registered 90139 (Connecticut)Primary
367500000XNurse Anesthetist, Certified Registered 116941-23 (New Hampshire)Secondary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Bridgeport HospitalBridgeport, CTHospital
Mary Hitchcock Memorial HospitalLebanon, NHHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Dartmouth-hitchcock Clinic41835375091440
Yale University94360617362644

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Olga Marsillio is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Olga Marsillio, DNP
450 Center St, Unit 16,
Southport, CT 06890-1447

Ph: () -
Olga Marsillio, DNP
365 Montauk Ave,
New London, CT 06320-4700

Ph: (860) 442-0711

Reviews and Comments


Nurse Anesthetist, Certified Registered Nurses in New London, CT

Judith Ann Mcgannon, CRNA
Nurse Anesthetist - CR
Medicare: Not Enrolled in Medicare
Practice Location: 365 Montauk, Lawrence And Memorial Hospital, New London, CT 06320
Phone: 860-442-0711    
Tara M Huta, CRNA
Nurse Anesthetist - CR
Medicare: Accepting Medicare Assignments
Practice Location: 365 Montauk Ave, New London, CT 06320
Phone: 860-442-0711    Fax: 781-407-0998
Sharon B Gallipeau, CRNA
Nurse Anesthetist - CR
Medicare: Not Enrolled in Medicare
Practice Location: 365 Montauk Ave, New London, CT 06320
Phone: 860-442-0711    
Thomas Scott Long, CRNA
Nurse Anesthetist - CR
Medicare: Accepting Medicare Assignments
Practice Location: 365 Montauk Ave, New London, CT 06320
Phone: 860-442-0711    
Jolene Marie Oliver, CRNA
Nurse Anesthetist - CR
Medicare: Accepting Medicare Assignments
Practice Location: 365 Montauk Ave, New London, CT 06320
Phone: 206-384-6204    
Stefanie Guarino, CRNA
Nurse Anesthetist - CR
Medicare: Medicare Enrolled
Practice Location: 365 Montauk Ave, New London, CT 06320
Phone: 860-442-0711    Fax: 781-407-0998
Ekelechi Nwanju, CRNA, DNP
Nurse Anesthetist - CR
Medicare: Accepting Medicare Assignments
Practice Location: 365 Montauk Ave, New London, CT 06320
Phone: 973-970-8044    

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.