MARIALEJANDRA DIAZ IBARRA MD
NPI 1851031173
Ophthalmology - Retina Specialist in Mission Viejo, CA

Q: What is Marialejandra Diaz Ibarra's NPI number?

The NPI number for Marialejandra Diaz Ibarra is 1851031173. It was assigned to this individual provider in the NPPES registry on April 1, 2022.

Q: What is Marialejandra Diaz Ibarra's specialty?

The primary specialty registered for this NPI is Ophthalmology, specializing in Retina Specialist, with taxonomy code 207WX0107X.

Active since April 01, 2022PECOS Enrolled

26732 CROWN VALLEY PKWY STE 351, MISSION VIEJO, CA 92691(949) 642-3100 Get Directions Write a Review

NPPES record last updated: June 11, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Marialejandra Diaz Ibarra Md NPPES

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

MARIALEJANDRA DIAZ IBARRA MD (NPI 1851031173) is an individual retina specialist in Mission Viejo, California, licensed in California (A197533) and active in the NPI registry since April 2022. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1851031173

Entity TypeIndividualFemale

Primary Taxonomy207WX0107X

Provider Legal NameMARIALEJANDRA DIAZ IBARRACredential: MD

Location Address26732 CROWN VALLEY PKWY STE 351Mission Viejo, CA 92691-6374

Mailing Address14726 Ramona Ave Ste 203Chino, CA 91710-5730 · (626) 305-9100 · Fax (626) 305-0152

Phone(949) 642-3100

Sole ProprietorNo

Enumeration DateApril 1, 2022

Last NPPES UpdateJune 11, 2026

NPPES CertifiedJune 11, 2026

✔ NPI 1851031173 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOphthalmology · Retina SpecialistAllopathic & Osteopathic Physicians

Taxonomy Code207WX0107X

License✔ Licensed in CA · A197533

Definition

An ophthalmologist who specializes in the diagnosis and treatment of vitreoretinal diseases.

26732 CROWN VALLEY PKWY STE 351, Mission Viejo, CA 92691

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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Marialejandra Diaz Ibarra Md 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 92691 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

$142.39 typical visit price

range $62.96 – $187.60

Typical copayment $35.59 (range $15.74 – $46.90)

Most-billed visit code 99204

Established Patient

$77.96 typical visit price

range $20.84 – $153.61

Typical copayment $19.49 (range $5.21 – $38.40)

Most-billed visit code 99213

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 5

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

MR. MATTHEW THOMAS BRADY

Surgery