NPPES file of Aug 9, 2026

Sisilia Thomas, AGNP-C

Gerontology Nurse Practitioner · Boston, MA

Sisilia Thomas, AGNP-C is a gerontology nurse practitioner with a practice address in Boston, Massachusetts, and NPI 1518842079, issued on Aug 6, 2025. Check the license (Massachusetts RN2263665, as entered in NPPES) with the Massachusetts board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1518842079
Name
Sisilia Thomas
Credential
AGNP-C
Primary taxonomy
Gerontology Nurse Practitioner 363LG0600X
License number
RN2263665 MA
Self-reported in NPPES; status is on the state search
Practice location
830 Harrison Avenue, 3RD FL, Boston, MA 02118
Phone
(617) 638-6428
Enumerated
Aug 6, 2025
Record last updated
May 20, 2026
Fax
(617) 638-5756
Medicaid ID
110225757A MA
Medicare enrollment
Enrolled (PECOS I20260408001730); may accept Medicare assignment
Medical or professional school
University Of Massachusetts Medical School, 2025
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest gerontology nurse practitioner records → All 379 in Massachusetts → Look up another NPI →

Also registered at 830 Harrison Avenue, 3RD FL

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Maya Abdallah, MDInternal Medicine Physician1861854937
  2. Jose Acevedo Mejia, M.D.Hematology & Oncology Physician1801277173
  3. Hussein Assi, M.DMedical Oncology Physician1235544362
  4. Britney Bell, MDHematology & Oncology Physician1265938732
  5. Natasha Burke, N.P.Gerontology Nurse Practitioner1700325503
  6. Yenong Cao, MDHematology & Oncology Physician1063972016

Verify Sisilia Thomas in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
    Search for license RN2263665    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Massachusetts license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Sisilia Thomas among 379 gerontology nurse practitioner records in Massachusetts

Sisilia Thomas, AGNP-C is one of 379 gerontology nurse practitioner records with a practice address in Massachusetts. 70% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2025, is newer than 97% of them.

  • NPI issued2025 · 97% of these records are older, 1% newer
  • In a Medicare fileNo · 70% of these records are
  • In the CMS Doctors and Clinicians fileYes · 51% of these records are
  • Graduated2025 · median 2017 among the 192 with a school on file
  • Record last updated2026 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LG0600X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Gerontology Nurse Practitioner providers in Massachusetts

There are 379 gerontology nurse practitioner records in Massachusetts. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 379 in Massachusetts → Every provider in Boston → Gerontology Nurse Practitioner nationwide →

The 8 gerontology nurse practitioner records with the nearest ZIP codes

  1. Grant Butler, NPBoston, MA 021181437525102
  2. Karen Byrd, NPBoston, MA 021181578547980
  3. Jiyin Chou, N.P.Boston, MA 021181689807786
  4. Katherine Concilio, NPBoston, MA 021181235237173
  5. Nicole Depace, NPBoston, MA 021181265749618
  6. Yves-Martine Dumas, RN, NPBoston, MA 021181154628246
  7. Susan Frazier, N.P.Boston, MA 021181679585988
  8. Aissatou Gueye, NPBoston, MA 021181972966216

Common questions

What is Sisilia Thomas, AGNP-C's NPI number?

Sisilia Thomas, AGNP-C's National Provider Identifier (NPI) is 1518842079, issued on Aug 6, 2025. An NPI identifies a provider in billing; it is not a license.

Where is Sisilia Thomas, AGNP-C located?

The NPPES record lists a practice address at 830 Harrison Avenue, 3RD FL, Boston, MA, 02118. Phone: (617) 638-6428. Providers update this record themselves, so call before visiting.

How can I verify Sisilia Thomas, AGNP-C's license?

NPPES lists Massachusetts license number RN2263665, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.