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

Sarah Frances D'Ambruoso, RN, NP

Individual provider Registered Nurse · NPI 1548532344

Sarah Frances D'Ambruoso, RN, NP is a Nurse Practitioner in Santa Monica, California. Qualified in 2013, 13 years ago. Practices with Illumia Health LLC, a 33-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
13
Licensed in
CA
In the registry since
2012
Specialties on file
2
What do these letters mean?
RN — Registered Nurse
A licensed nurse who completed a nursing degree and passed the NCLEX-RN examination.
NP — Nurse Practitioner
An advanced practice nurse who can diagnose, treat and in most states prescribe.

See every abbreviation used in this directory →

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Practice location Address checks out

1260 15th St
Santa Monica, CA 90404-1135 Not confirmed with CMS for 12 years — call before visiting
Phone: (424) 259-9520
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Nurse Practitioner (primary) Taxonomy 363L00000X · Licence 95000079 (CA)
Registered Nurse Taxonomy 163W00000X · Licence 747029 (CA)

Record details

NPI number1548532344
Entity typeIndividual (Type 1)
GenderFemale
Credentials RN , NP
Sole proprietorNo
NPI enumeratedFebruary 8, 2012
Last updated in NPPESDecember 30, 2013

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2013 (13 years in practice)
Group practice Illumia Health Llc — 33 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 patients38
Services billed 71 a service is one billed item, such as a visit, a test or a procedure
Average patient age81

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.

Colleagues at Illumia Health LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 33 clinicians in the practice; 12 are shown here.

Other providers in Santa Monica