Allison Izsak, MD
Hospitalist Physician · Newark, NJ
Allison Izsak, MD is a hospitalist physician with a practice address in Newark, New Jersey, and NPI 1770225583, issued on Apr 12, 2022. Check the license (New Jersey 25MA12577000, as entered in NPPES) on the New Jersey State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Allison Izsak
- Credential
- MD
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License number
- 25MA12577000 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 150 Bergen St, Newark, NJ 07103
- Phone
- (973) 972-6056
- Enumerated
- Apr 12, 2022
- Record last updated
- Jul 16, 2025
- Medicare enrollment
- Enrolled (PECOS I20251208003873); accepts Medicare assignment
- Medical or professional school
- Albert Einstein College Of Medicine Of Yeshiva University, 2022
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 644 in New Jersey → Look up another NPI →
Also registered at 150 Bergen St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sampson Abah, MDStudent in an Organized Health Care Education/Training Program1639919665
- Shahed AbbasiInternal Medicine Physician1477810752
- Sarah Abbassi, M.D.Allergy & Immunology Physician1306209671
- Andrew Abdelmalek, MDStudent in an Organized Health Care Education/Training Program1962190843
- Carol Jean Abesamis, N.P,Family Nurse Practitioner1609088673
- Daniela Abramove, MDStudent in an Organized Health Care Education/Training Program1417743501
Verify Allison Izsak in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNew Jersey State Board of Medical Examiners
Search for license 25MA12577000Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
9% more Medicare Part D claims than the average hospitalist physician in 2024
570 Medicare Part D claims for 88 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium61 claims
- Amlodipine Besylate28 claims
- Losartan Potassium26 claims
- Metoprolol Succinate24 claims
- Levothyroxine Sodium16 claims
- Gabapentin15 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.
Bills Medicare through one group practice
- University Physician Associates OF New Jersey IncNewark, NJ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Allison Izsak among 644 hospitalist physician records in New Jersey
Allison Izsak, MD is one of 644 hospitalist physician records with a practice address in New Jersey. 91% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 88% of them.
- NPI issued2022 · 88% of these records are older, 5% newer
- In a Medicare fileYes · 91% of these records are
- In the CMS Doctors and Clinicians fileYes · 88% of these records are
- Graduated2022 · median 2013 among the 565 with a school on file
- Record last updated2025 · 36% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a New Jersey practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospitalist Physician providers in New Jersey
There are 644 hospitalist physician records in New Jersey.
All 644 in New Jersey → Every provider in Newark → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Michael Bebawy, DONewark, NJ 071031447992383
- Angelika Drozd, MDNewark, NJ 071031235875709
- Sobha Koduru, M.D.Newark, NJ 071031114232428
- Karina LochanNewark, NJ 071031477114932
- Claire Ruane, MDNewark, NJ 071031891377677
- Tijo Thomas, D.ONewark, NJ 071021033577101
- Vivek Vadehra, M.D.Newark, NJ 071071073602793
- Tarun Kumar, MDBelleville, NJ 071091346235926
Common questions
What is Allison Izsak, MD's NPI number?
Allison Izsak, MD's National Provider Identifier (NPI) is 1770225583, issued on Apr 12, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Allison Izsak, MD located?
The NPPES record lists a practice address at 150 Bergen St, Newark, NJ, 07103. Phone: (973) 972-6056. Providers update this record themselves, so call before visiting.
How can I verify Allison Izsak, MD's license?
NPPES lists New Jersey license number 25MA12577000, as entered by the provider. Search the New Jersey State Board of Medical Examiners at https://newjersey.mylicense.com/verification/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Allison Izsak, MD prescribe under Medicare Part D?
In 2024, Allison Izsak, MD had 570 Medicare Part D claims for 88 beneficiaries; the average among hospitalist physician prescribers was 521. 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.