Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Emma Elizabeth Heer Mazzilli, MSN, RN, AGACNP-BC

Individual provider Acute Care Nurse Practitioner · NPI 1093349532

Emma Elizabeth Heer Mazzilli, MSN, RN, AGACNP-BC is a Nurse Practitioner in Duarte, California. Qualified in 2018, 8 years ago. Practices with Cedars-Sinai Medical Center, a 795-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
8
Licensed in
CA
In the registry since
2020
Specialties on file
2
What do these letters mean?
MSN — Master of Science in Nursing
A graduate nursing degree, usually held alongside an advanced practice licence.
RN — Registered Nurse
A licensed nurse who completed a nursing degree and passed the NCLEX-RN examination.

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Practice location Address checks out

1500 Duarte Rd
Duarte, CA 91010-3012
Phone: (626) 256-4673
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Gerontology Nurse Practitioner (primary) Taxonomy 363LG0600X · Licence 95011386 (CA)
Acute Care Nurse Practitioner Taxonomy 363LA2100X · Licence 95011386 (CA)

Record details

NPI number1093349532
Entity typeIndividual (Type 1)
GenderFemale
Credentials MSN , RN , AGACNP-BC
Sole proprietorNo
NPI enumeratedFebruary 24, 2020
Last updated in NPPESNovember 16, 2020
Certification dateNovember 16, 2020

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2018 (8 years in practice)
Group practice Cedars-Sinai Medical Center — 795 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients80
Services billed 124 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Cedars-Sinai Medical Center

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 795 clinicians in the practice; 12 are shown here.

Other providers in Duarte