John Lieto, O.D.
Optometrist · Exton, PA
John Lieto, O.D. is an optometrist with a practice address in Exton, Pennsylvania, and NPI 1205939535, issued on Sep 5, 2006. Check the license (Pennsylvania OEG 1033, as entered in NPPES) with the Pennsylvania board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- John Lieto
- Credential
- O.D.
- Primary taxonomy
- Optometrist 152W00000X
- License number
- OEG 1033 PA
Self-reported in NPPES; status is on the state search - Practice location
- 270 Indian Run Street, Exton, PA 19341
- Phone
- (484) 875-9591
- Enumerated
- Sep 5, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (484) 875-9725
- Entity
- Type 1 · individual
8 nearest optometrist records → All 2,640 in Pennsylvania → Look up another NPI →
Verify John Lieto in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Pennsylvania board licenses this profession
Search for license OEG 1033Check 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: $227.83
2 payments; by number, the most common kind was food and beverage; the largest payer was Biotissue Holdings 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.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
John Lieto among 2,640 optometrist records in Pennsylvania
John Lieto, O.D. is one of 2,640 optometrist records with a practice address in Pennsylvania. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 14% of them.
- NPI issued2006 · 14% of these records are older, 48% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileNo · 60% of these records are
- Record last updated2007 · 69% 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 Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
23 optometrist records list a practice address in Exton
They are 23 of the 1,089 NPPES records with a practice address in Exton, and 2,640 optometrist records in Pennsylvania.
All 2,640 in Pennsylvania → Every provider in Exton → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Mark Boas, ODExton, PA 193411437269487
- Suzanne Boas, ODExton, PA 193411336201722
- Alan Cohen, ODExton, PA 193411295722924
- Theodora Cozan, ODExton, PA 193411316169766
- Heather Fagnani, ODExton, PA 193411003909805
- Mark Goddard, O.D.Exton, PA 193411366502692
- Ross Goukler, O.D.Exton, PA 193411518092303
- Robert Kuczynski, ODExton, PA 193411649388679
Common questions
What is John Lieto, O.D.'s NPI number?
John Lieto, O.D.'s National Provider Identifier (NPI) is 1205939535, issued on Sep 5, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John Lieto, O.D. located?
The NPPES record lists a practice address at 270 Indian Run Street, Exton, PA, 19341. Phone: (484) 875-9591. Providers update this record themselves, so call before visiting.
How can I verify John Lieto, O.D.'s license?
NPPES lists Pennsylvania license number OEG 1033, as entered by the provider. Search the Pennsylvania board that licenses this profession; the NPPES record confirms identity 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.