Olivia Isshak
General Practice Dentistry · Clifton, NJ
Olivia Isshak is a general practice dentistry with a practice address in Clifton, New Jersey, and NPI 1609456755, issued on Apr 13, 2021. Check the license (New Jersey 22DI02855100, as entered in NPPES) with the New Jersey board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Olivia Isshak
- Primary taxonomy
- General Practice Dentistry 1223G0001X
- License number
- 22DI02855100 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 991 Van Houten Ave, Clifton, NJ 07013
- Phone
- (201) 895-0647
- Enumerated
- Apr 13, 2021
- Record last updated
- Jan 12, 2023
- Entity
- Type 1 · individual
8 nearest general practice dentistry records → All 4,085 in New Jersey → Look up another NPI →
Also registered at 991 Van Houten Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Zachary ZysmanDentist1780387837
Verify Olivia Isshak in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich New Jersey board licenses this profession
Search for license 22DI02855100Check 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: $98.39
1 payment: food and beverage; the largest payer was NuSmile, Ltd. The 41,669 providers of this specialty with any payment received $597.01 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.
Olivia Isshak among 4,085 general practice dentistry records in New Jersey
Olivia Isshak is one of 4,085 general practice dentistry records with a practice address in New Jersey. 64% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 90% of them.
- NPI issued2021 · 90% of these records are older, 8% newer
- In a Medicare fileYes · 64% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2023 · 80% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223G0001X and a New Jersey practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
63 general practice dentistry records list a practice address in Clifton
They are 63 of the 1,732 NPPES records with a practice address in Clifton, and 4,085 general practice dentistry records in New Jersey.
All 4,085 in New Jersey → Every provider in Clifton → General Practice Dentistry nationwide →
The 8 general practice dentistry records with the nearest ZIP codes
- Wayne Berman, DMDClifton, NJ 070131346253739
- Theodore Constandelis, DDSClifton, NJ 070131295757581
- Brian Cunningham, DMDClifton, NJ 070131467462705
- Lawrence Duca, D.M.D.Clifton, NJ 070131063565612
- Lisa Ference, DMDClifton, NJ 070131073738969
- James Fisher, DMDClifton, NJ 070131962405514
- Joseph Kennedy, D.M.D.Clifton, NJ 070131518019728
- Douglas McGuire, DMDClifton, NJ 070131780809566
Common questions
What is Olivia Isshak's NPI number?
Olivia Isshak's National Provider Identifier (NPI) is 1609456755, issued on Apr 13, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Olivia Isshak located?
The NPPES record lists a practice address at 991 Van Houten Ave, Clifton, NJ, 07013. Phone: (201) 895-0647. Providers update this record themselves, so call before visiting.
How can I verify Olivia Isshak's license?
NPPES lists New Jersey license number 22DI02855100, as entered by the provider. Search the New Jersey 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.