Olga Marsillio, DNP
Certified Registered Nurse Anesthetist · New London, CT
Olga Marsillio, DNP is a certified registered nurse anesthetist with a practice address in New London, Connecticut, and NPI 1841558897, issued on Apr 27, 2012. Check the license (Connecticut 90139, as entered in NPPES) with the Connecticut board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Olga Marsillio
- Credential
- DNP
- Primary taxonomy
- Certified Registered Nurse Anesthetist 367500000X
- License numbers
- 90139 CT
116941-23 NH
Self-reported in NPPES; status is on the state search - Practice location
- 365 Montauk Ave, New London, CT 06320
- Phone
- (860) 442-0711
- Enumerated
- Apr 27, 2012
- Record last updated
- Mar 11, 2026
- Medicare enrollment
- Enrolled (PECOS I20260320001706); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 365 Montauk Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Gada Abdelhafiz, MDInternal Medicine Physician1467649558
- Mariam Aboukar, D.O.Psychiatry Physician1013448620
- Tyler Ackley, PHARMDPharmacist1326632514
- Luke Ackroyd, CRNACertified Registered Nurse Anesthetist1982640348
- Theresa Adams, M.D.Emergency Medicine Physician1457678138
- Syeda Kanza AfzalInternal Medicine Physician1043943046
Verify Olga Marsillio in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Connecticut board licenses this profession
Search for license 90139Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The MIPS final score for 2023 (Medicare payment program): 93.3 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through 2 group practices
- Dartmouth-Hitchcock ClinicLebanon, NH
- Yale UniversityNew Haven, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
36 certified registered nurse anesthetist records list a practice address in New London
They are 36 of the 1,218 NPPES records with a practice address in New London, and 880 certified registered nurse anesthetist records in Connecticut.
All 36 in New London → All 880 in Connecticut → Every provider in New London →
Other certified registered nurse anesthetist records in Connecticut
- Justin AbbateBridgeport, CT1811780497
- Kevin Abbate, CRNAManchester, CT1518438530
- Luke Ackroyd, CRNANew London, CT1982640348
- Melissa AdrianiNew Haven, CT1619222908
- Julie Ali, APRN, CRNAMeriden, CT1376735407
- Devin Allen, CRNAHartford, CT1841768439
- Caitlin Almeida, CRNANew Haven, CT1558819946
- Christine AloiBridgeport, CT1043865454
- Katherine AmaranteNew Haven, CT1184246365
- Richard Amione, C.R.N.A.Wilton, CT1487639407
Common questions
What is Olga Marsillio, DNP's NPI number?
Olga Marsillio, DNP's National Provider Identifier (NPI) is 1841558897, issued on Apr 27, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Olga Marsillio, DNP located?
The NPPES record lists a practice address at 365 Montauk Ave, New London, CT, 06320. Phone: (860) 442-0711. Providers update this record themselves, so call before visiting.
How can I verify Olga Marsillio, DNP's license?
NPPES lists Connecticut license number 90139, as entered by the provider. Search the Connecticut board that licenses this profession; the NPPES record confirms identity only.
What is Olga Marsillio, DNP's MIPS final score?
The 2023 MIPS final score is 93.3 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.