Marialejandra Diaz Ibarra, MD
Retina Specialist (Ophthalmology) Physician · Mission Viejo, CA
Marialejandra Diaz Ibarra, MD is a retina specialist (ophthalmology) physician with a practice address in Mission Viejo, California, and NPI 1851031173, issued on Apr 1, 2022. Check the license (California A197533, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Marialejandra Diaz Ibarra
- Credential
- MD
- Primary taxonomy
- Retina Specialist (Ophthalmology) Physician 207WX0107X
- License number
- A197533 CA
Self-reported in NPPES; status is on the state search - Practice location
- 26732 Crown Valley Pkwy Ste 351, Mission Viejo, CA 92691
- Phone
- (949) 642-3100
- Enumerated
- Apr 1, 2022
- Record last updated
- Jun 11, 2026
- Entity
- Type 1 · individual
8 nearest retina specialist (ophthalmology) physician records → All 205 in California → Look up another NPI →
Also registered at 26732 Crown Valley Pkwy Ste 351
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ahmad Abou Abbass, M.DSurgical Oncology Physician1790946895
- Matthew BradySurgery Physician1376863621
- Ashley Mergelmeyer, PA-CPhysician Assistant1902397219
- Kathy Nguyen, AGACNP-BCAcute Care Nurse Practitioner1437702552
- Katie Rogers, NPAcute Care Nurse Practitioner1649767476
Verify Marialejandra Diaz Ibarra in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A197533Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $311.45
6 payments; by number, the most common kind was food and beverage; the largest payer was Alcon Vision LLC. The 1,253 providers of this specialty with any payment received $7,667.49 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Marialejandra Diaz Ibarra among 205 retina specialist (ophthalmology) physician records in California
Marialejandra Diaz Ibarra, MD is one of 205 retina specialist (ophthalmology) physician records with a practice address in California. 98% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 96% of them.
- NPI issued2022 · 96% of these records are older, 2% newer
- In a Medicare fileYes · 98% of these records are
- In the CMS Doctors and Clinicians fileNo · 92% of these records are
- Record last updated2026 · 37% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207WX0107X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Retina Specialist (Ophthalmology) Physician providers in California
There are 205 retina specialist (ophthalmology) physician records in California.
All 205 in California → Every provider in Mission Viejo → Retina Specialist (Ophthalmology) Physician nationwide →
The 8 retina specialist (ophthalmology) physician records with the nearest ZIP codes
- Mitul Mehta, MDIrvine, CA 926971730341181
- Saeed Javidi, MDSanta Ana, CA 927051487183364
- Esther Kim, MDSanta Ana, CA 927051649539404
- Desmond McGuire, MDSanta Ana, CA 927051881690634
- Charles Eifrig, M.D.Laguna Hills, CA 926531306812979
- John Hwang, MDLaguna Hills, CA 926531629235510
- John Lean, M D F R C SLaguna Hills, CA 926531962513465
- Hani Salehi-Had, M.D.Huntington Beach, CA 926471306909403
Common questions
What is Marialejandra Diaz Ibarra, MD's NPI number?
Marialejandra Diaz Ibarra, MD's National Provider Identifier (NPI) is 1851031173, issued on Apr 1, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Marialejandra Diaz Ibarra, MD located?
The NPPES record lists a practice address at 26732 Crown Valley Pkwy Ste 351, Mission Viejo, CA, 92691. Phone: (949) 642-3100. Providers update this record themselves, so call before visiting.
How can I verify Marialejandra Diaz Ibarra, MD's license?
NPPES lists California license number A197533, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.