NPPES file of Aug 9, 2026

Sandra Veronica Leyan Castillo

Nurse Practitioner · Charlestown, MA

Sandra Veronica Leyan Castillo is a nurse practitioner with a practice address in Charlestown, Massachusetts, and NPI 1548922875, issued on Oct 13, 2021. Check the license (Massachusetts RN2327535, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1548922875
Name
Sandra Veronica Leyan Castillo
Primary taxonomy
Nurse Practitioner 363L00000X
License number
RN2327535 MA
Self-reported in NPPES; status is on the state search
Practice location
15 Tufts St, Charlestown, MA 02129
Phone
(617) 653-8007
Enumerated
Oct 13, 2021
Record last updated
Aug 8, 2024
Medicare enrollment
Enrolled (PECOS I20240822003577); may accept Medicare assignment
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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Also registered at 15 Tufts St

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

  1. Alice Currie, FNP-BCFamily Nurse Practitioner1396169652
  2. Dung Doan, D.M.D.Dentist1467835660
  3. Jennifer Hernandez, RDHDental Hygienist1538636667
  4. Jeffrey Ho, O.D.Optometrist1124480520
  5. Carolina Lamarque Angelillo, LMHCCounselor1841164746
  6. Julia McAndrew, MSN, MPH, FNP-BCFamily Nurse Practitioner1033665773

Verify Sandra Veronica Leyan Castillo 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 RN2327535
    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

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87% fewer Medicare Part D claims than the average nurse practitioner in 2024

140 Medicare Part D claims for 62 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D.

  1. Sandra Leyan Castillo140
  2. Specialty average1,109

Most prescribed

  1. Gabapentin16 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through one group practice

  1. North End Community Health Committee, Inc.Boston, MA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Sandra Veronica Leyan Castillo among 3,480 nurse practitioner records in Massachusetts

Sandra Veronica Leyan Castillo is one of 3,480 nurse practitioner records with a practice address in Massachusetts. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 75% of them.

  • NPI issued2021 · 75% of these records are older, 20% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileYes · 56% of these records are
  • Graduated2019 · median 2017 among the 1,963 with a school on file
  • Record last updated2024 · 52% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

14 nurse practitioner records list a practice address in Charlestown

They are 14 of the 421 NPPES records with a practice address in Charlestown, and 3,480 nurse practitioner records in Massachusetts.

The 8 nurse practitioner records with the nearest ZIP codes

  1. Meredith Cheney, FNP-BCCharlestown, MA 021291295167781
  2. Corrine Connors, NPBoston, MA 021291184764680
  3. Cindy Feliciano, NPCharlestown, MA 021291306986575
  4. Mia GilesCharlestown, MA 021291194338871
  5. Brian Henry, AGACNP-BCCharlestown, MA 021291033587415
  6. Caroline LebherzCharlestown, MA 021291063233906
  7. Antonia Makosky, NPBoston, MA 021291982610432
  8. Sharon McLaughlin, NPCharlestown, MA 021291366514762

Common questions

What is Sandra Veronica Leyan Castillo's NPI number?

Sandra Veronica Leyan Castillo's National Provider Identifier (NPI) is 1548922875, issued on Oct 13, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Sandra Veronica Leyan Castillo located?

The NPPES record lists a practice address at 15 Tufts St, Charlestown, MA, 02129. Phone: (617) 653-8007. Providers update this record themselves, so call before visiting.

How can I verify Sandra Veronica Leyan Castillo's license?

NPPES lists Massachusetts license number RN2327535, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.

How much does Sandra Veronica Leyan Castillo prescribe under Medicare Part D?

In 2024, Sandra Veronica Leyan Castillo had 140 Medicare Part D claims for 62 beneficiaries; the average among nurse practitioner prescribers was 1,109. Part D covers Medicare prescriptions 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. 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.