Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 90 days.

MIRELLA A CASTILLO FNP-C
NPI 1770495517
Nurse Practitioner in Nashua, NH

Q: What is Mirella Castillo's NPI number?

The NPI number for Mirella Castillo is 1770495517. It was assigned to this individual provider in the NPPES registry on September 17, 2026.

Q: What is Mirella Castillo's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Q: When was this NPI record last updated?

The NPPES record for Mirella Castillo was last updated on September 17, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since September 17, 2026

55 HARRIS RD, NASHUA, NH 03062(603) 888-1573(603) 888-1565 Get Directions Write a Review

NPPES record added: September 17, 2026. Verified against the NPPES registry weekly; last sync: September 20, 2026.

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About Mirella A Castillo Fnp-c NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MIRELLA A CASTILLO FNP-C (NPI 1770495517) is an individual nurse practitioner in Nashua, New Hampshire, licensed in New Hampshire (089488-23) and active in the NPI registry since September 2026.

NPPES Registry Identity

NPI1770495517

Entity TypeIndividualFemale

Primary Taxonomy363L00000X

Provider Legal NameMIRELLA A CASTILLOCredential: FNP-C

Location Address55 HARRIS RDNashua, NH 03062-2145

Mailing Address88 Main St # 808North Andover, MA 01845-2427 · (603) 888-1573 · Fax (603) 888-1565

Phone(603) 888-1573

Fax(603) 888-1565

Sole ProprietorYes

Enumeration DateSeptember 17, 2026

NPPES CertifiedSeptember 17, 2026

✔ NPI 1770495517 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363L00000X

License✔ Licensed in NH · 089488-23

Definition

(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.

55 HARRIS RD, Nashua, NH 03062

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Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

BROOKE TAYLOR WAYNE

Speech-Language Pathologist

55 HARRIS RD
NASHUA, NH 03062

Hillsborough County (603) 888-1573

MRS. MICHELLE BLAKE MOT, OTR/L

Occupational Therapist (Physical Rehabilitation)

55 HARRIS RD
NASHUA, NH 03062

Hillsborough County (603) 888-1573

KELSEY RICHARDSON

Speech-Language Pathologist

55 HARRIS RD
NASHUA, NH 03062

Hillsborough County (603) 888-1573

SARAH HAMLIN OTR/L

Occupational Therapist

55 HARRIS RD
NASHUA, NH 03062

Hillsborough County (603) 809-9666

DEEPALI BATISH

Physical Therapist

55 HARRIS RD
NASHUA, NH 03062

Hillsborough County (603) 888-1573

AMY R YOUNG OTR/L

Occupational Therapist

55 HARRIS RD
NASHUA, NH 03062

Hillsborough County (603) 888-1573

KINDRED NURSING CENTERS WEST, LLC

Skilled Nursing Facility

55 HARRIS RD
NASHUA, NH 03062

Hillsborough County (603) 888-1573

SHELLY RIEL PTA

Physical Therapy Assistant

55 HARRIS RD
NASHUA, NH 03062

Hillsborough County (603) 888-1573

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mirella Castillo's NPI number?

The NPI number for Mirella Castillo is 1770495517. It was assigned to this individual provider in the NPPES registry on September 17, 2026.

Where is Mirella Castillo located?

Mirella Castillo practices at 55 Harris Rd, Nashua, NH 03062. The listed phone number is (603) 888-1573.

What is Mirella Castillo's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

When was this NPI record last updated?

The NPPES record for Mirella Castillo was last updated on September 17, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.