MRS. MARGARET ANN DELMASTRO RNP
NPI 1043533110
Nurse Practitioner - Family in Orange, CA

Active since March 03, 2010PECOS Enrolled
1100 W STEWART DR, ORANGE, CA 92868(714) 734-6268(714) 734-6231 Get Directions Write a Review

NPPES record last updated: December 4, 2014. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Mrs. Margaret Ann Delmastro Rnp NPPES

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

MRS. MARGARET ANN DELMASTRO RNP (NPI 1043533110) is an individual family provider in Orange, California, licensed in California (221014) and active in the NPI registry since March 2010. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1043533110
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameMRS. MARGARET ANN DELMASTROCredential: RNP
Location Address1100 W STEWART DROrange, CA 92868-3849
Mailing Address14692 Buckingham PlTustin, CA 92780-6615 · (714) 734-6268 · Fax (714) 734-6231
Fax(714) 734-6231
Sole ProprietorNo
Enumeration DateMarch 3, 2010
Last NPPES UpdateDecember 4, 2014
NPI 1043533110 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
License Licensed in CA · 221014
Also ListedRegistered NurseTaxonomy 163W00000X · License 221014 (CA)
1100 W STEWART DR, Orange, CA 92868

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare (PECOS)

Mrs. Margaret Ann Delmastro Rnp is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92868 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$96.36 typical visit price
range $62.96 – $187.60
Typical copayment $24.09 (range $15.74 – $46.90)
Most-billed visit code 99203
Established Patient
$109.96 typical visit price
range $20.84 – $153.61
Typical copayment $27.49 (range $5.21 – $38.40)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

Psychiatry & Neurology (Psychiatry)
1100 W STEWART DR, ER DEPARTMENT
ORANGE, CA 92868
Anesthesiology
1100 W STEWART DR
ORANGE, CA 92868
Anesthesiology
1100 W STEWART DR
ORANGE, CA 92868
Radiology (Diagnostic Radiology)
1100 W STEWART DR
ORANGE, CA 92868
Emergency Medicine
1100 W STEWART DR
ORANGE, CA 92868
Anesthesiology
1100 W STEWART DR
ORANGE, CA 92868
Pharmacist
1100 W STEWART DR
ORANGE, CA 92868
Anesthesiology
1100 W STEWART DR
ORANGE, CA 92868

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 Margaret Delmastro's NPI number?

The NPI number for Margaret Delmastro is 1043533110. It was assigned to this individual provider in the NPPES registry on March 3, 2010.

Where is Margaret Delmastro located?

Margaret Delmastro practices at 1100 W Stewart Dr, Orange, CA 92868. The listed phone number is (714) 734-6268.

What is Margaret Delmastro's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Is Margaret Delmastro enrolled in Medicare?

Yes. Margaret Delmastro is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Margaret Delmastro was last updated on December 4, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 years 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.