Diana Leigh Ries, O.D.
Optometrist · Exton, PA
Diana Leigh Ries, O.D. is an optometrist with a practice address in Exton, Pennsylvania, and NPI 1629333521, issued on Jul 7, 2012. Check the license (Pennsylvania OEG002618, as entered in NPPES) with the Pennsylvania board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Diana Leigh Ries
- Credential
- O.D.
- Primary taxonomy
- Optometrist 152W00000X
- License number
- OEG002618 PA
Self-reported in NPPES; status is on the state search - Practice location
- 119 E Swedesford RD, Exton, PA 19341
- Phone
- (610) 594-0800
- Enumerated
- Jul 7, 2012
- Record last updated
- Mar 8, 2022
- Fax
- (610) 594-0801
- Medicare enrollment
- Enrolled (PECOS I20130411000186); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest optometrist records → All 2,640 in Pennsylvania → Look up another NPI →
Also registered at 119 E Swedesford RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Reta GuirguisOptometrist1619366036
- Susan Lockland, O.D.Optometrist1558340059
Verify Diana Leigh Ries in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Pennsylvania board licenses this profession
Search for license OEG002618Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average optometrist in 2024
15 Medicare Part D claims for 13 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D.
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: $316.66
11 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.
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
- Myeyedr Optometry OF Pennsylvania LLCExton, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Diana Leigh Ries among 2,640 optometrist records in Pennsylvania
Diana Leigh Ries, 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 2012, is newer than 70% of them.
- NPI issued2012 · 70% of these records are older, 28% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2012 · median 2004 among the 1,588 with a school on file
- Record last updated2022 · 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 Diana Leigh Ries, O.D.'s NPI number?
Diana Leigh Ries, O.D.'s National Provider Identifier (NPI) is 1629333521, issued on Jul 7, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Diana Leigh Ries, O.D. located?
The NPPES record lists a practice address at 119 E Swedesford RD, Exton, PA, 19341. Phone: (610) 594-0800. Providers update this record themselves, so call before visiting.
How can I verify Diana Leigh Ries, O.D.'s license?
NPPES lists Pennsylvania license number OEG002618, as entered by the provider. Search the Pennsylvania board that licenses this profession; the NPPES record confirms identity only.
How much does Diana Leigh Ries, O.D. prescribe under Medicare Part D?
In 2024, Diana Leigh Ries, O.D. had 15 Medicare Part D claims for 13 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.