Mary Kay Seguin, NP
Acute Care Nurse Practitioner · Worcester, MA
Mary Kay Seguin, NP is an acute care nurse practitioner with a practice address in Worcester, Massachusetts, and NPI 1417918103, issued on Mar 31, 2006. Check the license (Massachusetts RN166615, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mary Kay Seguin
- Credential
- NP
- Primary taxonomy
- Acute Care Nurse Practitioner 363LA2100X
- License numbers
- RN166615 MA
166615 MA
Self-reported in NPPES; status is on the state search - Practice location
- 281 Lincoln St, Worcester, MA 01605
- Phone
- (508) 334-6606
- Enumerated
- Mar 31, 2006
- Record last updated
- Mar 8, 2022
- Fax
- (508) 334-5156
- Medicaid ID
- 110016050A MA
- Entity
- Type 1 · individual
8 nearest acute care nurse practitioner records → All 598 in Massachusetts → Look up another NPI →
Also registered at 281 Lincoln St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Mary Kay Seguin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license RN166615Check 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 practice group's MIPS final score for 2023 (Medicare payment program): 59 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
Mary Kay Seguin among 598 acute care nurse practitioner records in Massachusetts
Mary Kay Seguin, NP is one of 598 acute care nurse practitioner records with a practice address in Massachusetts. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than under 1% of them.
- NPI issued2006 · under 1% of these records are older, 89% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileNo · 57% of these records are
- Record last updated2022 · 46% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LA2100X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Acute Care Nurse Practitioner providers in Massachusetts
There are 598 acute care nurse practitioner records in Massachusetts.
All 598 in Massachusetts → Every provider in Worcester → Acute Care Nurse Practitioner nationwide →
The 8 acute care nurse practitioner records with the nearest ZIP codes
- Lisa Arello, NPWorcester, MA 016051447224704
- Pamela Burgwinkle, NPWorcester, MA 016051265406870
- Ann Defosse, N.P.Worcester, MA 016051801171319
- Melanie Ferguson, NPWorcester, MA 016051750350831
- Giseberte Joseph, NPWorcester, MA 016051982851341
- Frances Leblanc, NPWorcester, MA 016051548420151
- Chi-Hung Joey Lee, NPWorcester, MA 016051396985768
- Tendai Lupafya, NPWorcester, MA 016051386965119
Common questions
What is Mary Kay Seguin, NP's NPI number?
Mary Kay Seguin, NP's National Provider Identifier (NPI) is 1417918103, issued on Mar 31, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mary Kay Seguin, NP located?
The NPPES record lists a practice address at 281 Lincoln St, Worcester, MA, 01605. Phone: (508) 334-6606. Providers update this record themselves, so call before visiting.
How can I verify Mary Kay Seguin, NP's license?
NPPES lists Massachusetts license number RN166615, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
What is Mary Kay Seguin, NP's MIPS final score?
The 2023 MIPS final score is 59 of 100, reported for the practice group. 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.