NPPES file of Aug 9, 2026

Ahmad M. Mansury, M.D.

Ophthalmology Physician · Corona, CA

Ahmad M. Mansury, M.D. is an ophthalmology physician with a practice address in Corona, California, and NPI 1992960827, issued on Jul 21, 2008. Check the license (California A100534, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1992960827
Name
Ahmad M. Mansury
Credential
M.D.
Primary taxonomy
Ophthalmology Physician 207W00000X
License number
A100534 CA
Self-reported in NPPES; status is on the state search
Practice location
21634 Retreat Pkwy, Corona, CA 92883
Phone
(951) 493-6934
Enumerated
Jul 21, 2008
Record last updated
Apr 14, 2025
Fax
(951) 826-8125
Medicare enrollment
Enrolled (PECOS I20141125000376); accepts Medicare assignment
Medical or professional school
University Of California, Geffen School Of Medicine, 2005
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 21634 Retreat Pkwy

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Abdul AnsariDermatology Physician1124655170
  2. Massimo Arcerito, MDSurgery Physician1023200409
  3. Samarjeet BajwaNeurology Physician1851719512
  4. Anand Bhupathy, D.O.Dermatology Physician1881790418
  5. Simran Brar, DOEndocrinology, Diabetes & Metabolism Physician1164783908
  6. Steven Deterville, MDPediatrics Physician1700860285

Verify Ahmad M. Mansury in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A100534
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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8% more Medicare Part D claims than the average ophthalmology physician in 2024

1,633 Medicare Part D claims for 339 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 35% of claims.

  1. Ahmad Mansury1,633
  2. Specialty average1,518

Most prescribed

  1. Latanoprost437 claims
  2. Prednisolone Acetate259 claims
  3. Ofloxacin254 claims
  4. Ketorolac Tromethamine239 claims
  5. Dorzolamide-Timolol143 claims
  6. Dorzolamide Hcl63 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $32.69

2 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. The 13,221 providers of this specialty with any payment received $4,535.02 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Ahmad Mansury$32.69
  2. Specialty average$4,535.02

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Riverside Medical Clinic IncRiverside, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Ahmad M. Mansury among 2,899 ophthalmology physician records in California

Ahmad M. Mansury, M.D. is one of 2,899 ophthalmology physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 67% of them.

  • NPI issued2008 · 67% of these records are older, 28% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated2005 · median 2001 among the 1,907 with a school on file
  • Record last updated2025 · 67% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Ophthalmology Physician providers in California

There are 2,899 ophthalmology physician records in California.

The 8 ophthalmology physician records with the nearest ZIP codes

  1. Samantha Johnson, DOCorona, CA 928821457840035
  2. Benjamin Katz, M.D.Corona, CA 928821598907883
  3. Mark Schneider, M.D.Corona, CA 928821134296767
  4. Robert Collier, M.D.Yorba Linda, CA 928861790175651
  5. Morton Israel, M.D.Corona, CA 928791902817158
  6. Angelita Palanca-Capistrano, M.D.Corona, CA 928791578526521
  7. Shaival Shah, M.D.Yorba Linda, CA 928871912164708
  8. Peter Glickman, M.D.Placentia, CA 928701851644587

Common questions

What is Ahmad M. Mansury, M.D.'s NPI number?

Ahmad M. Mansury, M.D.'s National Provider Identifier (NPI) is 1992960827, issued on Jul 21, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Ahmad M. Mansury, M.D. located?

The NPPES record lists a practice address at 21634 Retreat Pkwy, Corona, CA, 92883. Phone: (951) 493-6934. Providers update this record themselves, so call before visiting.

How can I verify Ahmad M. Mansury, M.D.'s license?

NPPES lists California license number A100534, 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.

How much does Ahmad M. Mansury, M.D. prescribe under Medicare Part D?

In 2024, Ahmad M. Mansury, M.D. had 1,633 Medicare Part D claims for 339 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.

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.