Quick answers
- Does Allison B. Gunzburg accept Medicare assignment?
- Yes. Medicare's clinician data says Allison B. Gunzburg accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Allison B. Gunzburg see?
- In 2024, CMS data shows 452 Original Medicare patients and 892 services for Allison B. Gunzburg. This counts Original Medicare only and measures volume, not quality.
- What is Allison B. Gunzburg's NPI number?
- 1235132804. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Allison B. Gunzburg, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 452 |
|---|---|
| Services billed to Medicare | 892 |
| Different services or procedures | 27 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Established patient complete exam of visual system (92014)252 services
- Established patient problem focused exam of visual system (92012)216 services
- Photography of the retina (92250)70 services
- Imaging of optic nerve (92133)55 services
- Imaging of retina (92134)46 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High cholesterol75%
- High blood pressure72%
- Arthritis44%
- Diabetes30%
- Ischemic heart disease29%
- Osteoporosis21%
Practice locations
Addresses where Allison B. Gunzburg is enrolled with Medicare (CMS data updated October 2, 2026).
- 1 N Washington AveBergenfield, NJ 07621
- 46 Eagle Rock AveEast Hanover, NJ 07936 (973) 560‑1500
Group practices
Medicare enrollment lists Allison B. Gunzburg as a member of these groups (CMS data updated October 2, 2026).
- Parsippany Eyecare Associates PA11 clinicians in the group
- New Jersey Eye Center PA9 clinicians in the group
Specialties
- Ophthalmologyprimary
Other ophthalmologists in Bergenfield
Clinicians with the same Medicare primary specialty in Bergenfield, NJ — not a recommendation.
Other clinicians in Parsippany Eyecare Associates PA
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Northwestern University Feinberg Medical School |
| Graduation year | 1999 (27 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1235132804 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians