Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Mrs. Sierra Alexis Mazzarella, CRNP

Individual provider Family Nurse Practitioner · NPI 1588431381

Mrs. Sierra Alexis Mazzarella, CRNP is a Nurse Practitioner in West Chester, Pennsylvania. Qualified in 2023, 3 years ago. Practices with Pennsylvania Urgent Care Centers, PLLC, a 108-clinician group and accepts Medicare assignment. Licensed in Pennsylvania.

Years since qualifying
3
Licensed in
PA
In the registry since
2023
What do these letters mean?
CRNP — Certified Registered Nurse Practitioner
The title Pennsylvania and some other states use for a nurse practitioner.

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Practice location Address checks out

510 E Gay St
West Chester, PA 19380-2799
Phone: (484) 999-0204
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence SP028771 (PA)

Record details

NPI number1588431381
Entity typeIndividual (Type 1)
GenderFemale
Credentials CRNP
Sole proprietorNo
NPI enumeratedDecember 11, 2023
Last updated in NPPESDecember 11, 2023
Certification dateDecember 11, 2023

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2023 (3 years in practice)
Group practice Pennsylvania Urgent Care Centers, Pllc — 108 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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