NPPES file of Aug 9, 2026

Corey Thomas Leach, OD

Optometrist · Mesa, AZ

Corey Thomas Leach, OD is an optometrist with a practice address in Mesa, Arizona, and NPI 1427658921, issued on Oct 26, 2020. Check the license (Arizona OPT-002774, as entered in NPPES) with the Arizona board that licenses this profession; 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
1427658921
Name
Corey Thomas Leach
Credential
OD
Primary taxonomy
Optometrist 152W00000X
License numbers
OPT-002774 AZ
2209DT KY
Self-reported in NPPES; status is on the state search
Practice location
2826 E Baseline RD # 101, Mesa, AZ 85204
Phone
(480) 626-8925
Enumerated
Oct 26, 2020
Record last updated
Apr 4, 2024
Medicare enrollment
Enrolled (PECOS I20241023004125); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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.
Download card Updates feed

Verify Corey Thomas Leach in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Arizona board licenses this profession
    Search for license OPT-002774
    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
Find the Arizona 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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

30% fewer Medicare Part D claims than the average optometrist in 2024

194 Medicare Part D claims for 81 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 37% of claims.

  1. Corey Leach194
  2. Specialty average277

Most prescribed

  1. Latanoprost59 claims
  2. Brimonidine Tartrate21 claims
  3. Prednisolone Acetate16 claims
  4. Neomycin-Polymyxin-Dexameth15 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: $324.24

9 payments; by number, the most common kind was food and beverage; the largest payer was CooperVision Inc. The 34,453 providers of this specialty with any payment received $769.99 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Corey Leach$324.24
  2. Specialty average$769.99

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. Eyes ON Site PLLCMesa, AZ

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

Corey Thomas Leach among 1,336 optometrist records in Arizona

Corey Thomas Leach, OD is one of 1,336 optometrist records with a practice address in Arizona. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 81% of them.

  • NPI issued2020 · 81% of these records are older, 16% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 56% of these records are
  • Graduated2020 · median 2010 among the 746 with a school on file
  • Record last updated2024 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 152W00000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

99 optometrist records list a practice address in Mesa

They are 99 of the 9,151 NPPES records with a practice address in Mesa, and 1,336 optometrist records in Arizona.

The 8 optometrist records with the nearest ZIP codes

  1. Brian Baldwin, ODMesa, AZ 852041851813752
  2. Jordan Bluth, ODMesa, AZ 852041043710759
  3. Guy McDougal, O.D.Mesa, AZ 852041154374684
  4. Zachary Miller, ODMesa, AZ 852041518443472
  5. Matthew Palmer, ODMesa, AZ 852041093970931
  6. Kevin Pugh, ODMesa, AZ 852041568845097
  7. John Reed, ODMesa, AZ 852041922073550
  8. James Reed, O.D.Mesa, AZ 852041740624410

Common questions

What is Corey Thomas Leach, OD's NPI number?

Corey Thomas Leach, OD's National Provider Identifier (NPI) is 1427658921, issued on Oct 26, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Corey Thomas Leach, OD located?

The NPPES record lists a practice address at 2826 E Baseline RD # 101, Mesa, AZ, 85204. Phone: (480) 626-8925. Providers update this record themselves, so call before visiting.

How can I verify Corey Thomas Leach, OD's license?

NPPES lists Arizona license number OPT-002774, as entered by the provider. Search the Arizona board that licenses this profession; the NPPES record confirms identity only.

How much does Corey Thomas Leach, OD prescribe under Medicare Part D?

In 2024, Corey Thomas Leach, OD had 194 Medicare Part D claims for 81 beneficiaries; the average among optometrist prescribers was 277. 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.