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

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Olga Marsillio, DNP is a medicare enrolled "Nurse Anesthetist, Certified Registered" in New London, Connecticut. 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 does not accept medicare assignments directly but she may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. 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
SpecialityNurse Anesthetist, Certified Registered
Location365 Montauk Ave, New London, Connecticut
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1841558897
  • Provider Enumeration Date: 04/27/2012
  • Last Update Date: 08/10/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 0143486357
  • Enrollment ID: I20120716000293

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

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Olga Marsillio allows following entities to bill medicare on her behalf.
Entity NameYale University
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1205822236
PECOS PAC ID: 9436061736
Enrollment ID: O20031105000015
Entity NameBridgeport Anesthesia Associates, P.c.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1174549257
PECOS PAC ID: 7113824616
Enrollment ID: O20031215000038
Entity NameIntegrated Anesthesia Associates Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1881636397
PECOS PAC ID: 1759281165
Enrollment ID: O20040112000163
Entity NameNortheast Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1043278351
PECOS PAC ID: 1254233836
Enrollment ID: O20040123000522
Entity NameNorth American Partners In Anesthesia Connecticut Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1316994775
PECOS PAC ID: 6709877939
Enrollment ID: O20040519000120
Entity NameConnecticut Gi Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1023124625
PECOS PAC ID: 9830110758
Enrollment ID: O20070112000011
Entity NameEndoscopy Center Of Connecticut, Llc
Entity TypePart B Supplier - Ambulatory Surgical Center
Entity IdentifiersNPI Number: 1386757854
PECOS PAC ID: 0143226712
Enrollment ID: O20070117000018

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.