Stephan Cassidy, O.D.
Optometrist · Issaquah, WA
Stephan Cassidy, O.D. is an optometrist with a practice address in Issaquah, Washington, and NPI 1679630867, issued on Jan 3, 2007. Check the license (Washington 3190, as entered in NPPES) with the Washington board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Stephan Cassidy
- Credential
- O.D.
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 3190 WA
Self-reported in NPPES; status is on the state search - Practice location
- 450 NW Gilman Blvd, Issaquah, WA 98027
- Phone
- (425) 392-8756
- Enumerated
- Jan 3, 2007
- Entity
- Type 1 · individual
Also registered at 450 NW Gilman Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Stephan Cassidy in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Washington board licenses this profession
Search for license 3190Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
27% fewer Medicare Part D claims than the average optometrist in 2024
205 Medicare Part D claims for 72 beneficiaries, against an average of 279 among the 32,314 providers of this specialty who prescribed in Part D. Brand-name drugs were 45% of claims.
Most prescribed
- Latanoprost42 claims
- Travoprost22 claims
- Prednisolone Acetate20 claims
- Restasis20 claims
- Dorzolamide-Timolol16 claims
- Lumigan14 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: $1,321.64
20 payments, mostly food and beverage; the largest payer was Lumenis BE inc. The 33,561 providers of this specialty with any payment received $749.79 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.
One hospital or facility affiliation
- Stephan Cassidy OD PSIssaquah, WA
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
25 optometrist records list a Issaquah practice address
They are 25 of the 1,727 NPPES records with a Issaquah practice address, and 1,616 optometrist records in Washington.
All 25 in Issaquah → All 1,616 in Washington → Every provider in Issaquah →
Other optometrist records in Washington
- Jenni Aaseby, O.D.Shelton, WA1720133374
- Meagan-Rhose Abanto, ODEverett, WA1457027880
- Jabeen Abdulla, O.D.Tacoma, WA1629304217
- James Abel, ODRenton, WA1255945390
- Christina Abercrombie, ODKent, WA1346906252
- Ashley Abiva, ODSeattle, WA1902572449
- Kenneth Absalonson, ODSpokane, WA1811206998
- Nour Abu-Haltam, ODVancouver, WA1194602037
- Peter Adachi, ODSeattle, WA1811040058
- Mark Aginsky, O.D.Bellingham, WA1730169285
Common questions
What is Stephan Cassidy, O.D.'s NPI number?
Stephan Cassidy, O.D.'s National Provider Identifier (NPI) is 1679630867, issued on Jan 3, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Stephan Cassidy, O.D. located?
The NPPES record lists a practice address at 450 NW Gilman Blvd, Issaquah, WA, 98027. Phone: (425) 392-8756. Providers update this record themselves, so call before visiting.
How can I verify Stephan Cassidy, O.D.'s license?
NPPES lists Washington license number 3190, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.
How much does Stephan Cassidy, O.D. prescribe under Medicare Part D?
In 2024, Stephan Cassidy, O.D. had 205 Medicare Part D claims for 72 beneficiaries; the average among optometrist prescribers was 279. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.