Benjamin Irzyk, DMD
Dentist · Portsmouth, NH
Benjamin Irzyk, DMD is a dentist with a practice address in Portsmouth, New Hampshire, and NPI 1588082002, issued on Apr 1, 2014. Check the license (New Hampshire 04147, as entered in NPPES) with the New Hampshire board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Benjamin Irzyk
- Credential
- DMD
- Primary taxonomy
- Dentist 122300000X
- License number
- 04147 NH
Self-reported in NPPES; status is on the state search - Practice location
- 85 Merrimac St, Portsmouth, NH 03801
- Phone
- (603) 436-6922
- Enumerated
- Apr 1, 2014
- Entity
- Type 1 · individual
Also registered at 85 Merrimac St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Janet Allaire, DMDGeneral Practice Dentistry1811918956
- Marc Greer, DMDGeneral Practice Dentistry1467476499
Verify Benjamin Irzyk in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich New Hampshire board licenses this profession
Search for license 04147Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
37% fewer Medicare Part D claims than the average dentist in 2024
54 Medicare Part D claims for 43 beneficiaries, against an average of 86 among the 51,021 providers of this specialty who prescribed in Part D.
Most prescribed
- Amoxicillin24 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: $382.75
15 payments, mostly food and beverage; the largest payer was Dentsply Sirona Inc. The 31,974 providers of this specialty with any payment received $540.36 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.
Dentist providers in New Hampshire
There are 380 dentist records in New Hampshire.
Other dentist records in New Hampshire
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- Slava Abdelrehim, DDSNashua, NH1124242946
- Natalie Accomando, DMDManchester, NH1821167008
- Sion Agami Contreras, DDSNew Boston, NH1720914005
- Laurie Aiton, DMDConcord, NH1114026507
- Mustafa Al AzzawiNashua, NH1306629290
- Andrew Albee, DMDPembroke, NH1649400110
- Taym Almetwali, DMDLebanon, NH1104591502
- Pranali AminTilton, NH1306262373
- Fnu Anitha Abdulrahiman, D.M.D.Londonderry, NH1194194084
Common questions
What is Benjamin Irzyk, DMD's NPI number?
Benjamin Irzyk, DMD's National Provider Identifier (NPI) is 1588082002, issued on Apr 1, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Benjamin Irzyk, DMD located?
The NPPES record lists a practice address at 85 Merrimac St, Portsmouth, NH, 03801. Phone: (603) 436-6922. Providers update this record themselves, so call before visiting.
How can I verify Benjamin Irzyk, DMD's license?
NPPES lists New Hampshire license number 04147, as entered by the provider. Search the New Hampshire board that licenses this profession; the NPPES record confirms identity only.
How much does Benjamin Irzyk, DMD prescribe under Medicare Part D?
In 2024, Benjamin Irzyk, DMD had 54 Medicare Part D claims for 43 beneficiaries; the average among dentist prescribers was 86. 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.
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) 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 27, 2026.