John Nickolas Psaltis, OD
Optometrist · Greenville, DE
John Nickolas Psaltis, OD is an optometrist with a practice address in Greenville, Delaware, and NPI 1346327301, issued on Nov 1, 2006. Check the license (Delaware I30001211OS, as entered in NPPES) with the Delaware board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- John Nickolas Psaltis
- Credential
- OD
- Primary taxonomy
- Optometrist 152W00000X
- License numbers
- I30001211OS DE
G000697PA PA
Self-reported in NPPES; status is on the state search - Practice location
- 3801 Kennett Pike Ste A102, Greenville, DE 19807
- Phone
- (302) 777-4794
- Enumerated
- Nov 1, 2006
- Record last updated
- Nov 21, 2025
- Fax
- (302) 777-4872
- Medicaid ID
- 0000553722 DE
- Medicare enrollment
- Enrolled (PECOS I20110330000438); accepts Medicare assignment
- Medical or professional school
- Pennsylvania College Of Optometry, 1993
- Entity
- Type 1 · individual
Verify John Nickolas Psaltis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Delaware board licenses this profession
Search for license I30001211OSCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
66% fewer Medicare Part D claims than the average optometrist in 2024
93 Medicare Part D claims for 21 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 34% of claims.
Most prescribed
- Latanoprost30 claims
- Timolol Maleate17 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.
1 optometrist records list a practice address in Greenville
They are 1 of the 27 NPPES records with a practice address in Greenville, and 164 optometrist records in Delaware.
Other optometrist records in Delaware
- Rajni Acharya, O.D.Wilmington, DE1033558960
- Kaelyn Adams, O.D.Bear, DE1619600798
- Roger Ammon, O.D.Wilmington, DE1144311010
- Mira Aumiller, O.D.Wilmington, DE1578514592
- Daniel Baruffi, O.D.Wilmington, DE1982916458
- Thomas Bastholm, O.D.Lewes, DE1295808848
- Zefanne Bergado, ODNew Castle, DE1093369969
- Andrew Berman, O.D.Dover, DE1487681284
- Anthony Betts, O.D.Wilmington, DE1720090160
- Sonja Biddle, ODSeaford, DE1124071899
Common questions
What is John Nickolas Psaltis, OD's NPI number?
John Nickolas Psaltis, OD's National Provider Identifier (NPI) is 1346327301, issued on Nov 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John Nickolas Psaltis, OD located?
The NPPES record lists a practice address at 3801 Kennett Pike Ste A102, Greenville, DE, 19807. Phone: (302) 777-4794. Providers update this record themselves, so call before visiting.
How can I verify John Nickolas Psaltis, OD's license?
NPPES lists Delaware license number I30001211OS, as entered by the provider. Search the Delaware board that licenses this profession; the NPPES record confirms identity only.
How much does John Nickolas Psaltis, OD prescribe under Medicare Part D?
In 2024, John Nickolas Psaltis, OD had 93 Medicare Part D claims for 21 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.