Quick answers
- Where does Gary J. Marencin see patients?
- Medicare's clinician data lists 1 practice location in Middletown, DE. Call before your visit to confirm the address.
- What is Gary J. Marencin's specialty?
- Medicare lists Qualified Audiologist as the primary specialty.
- Does Gary J. Marencin accept Medicare assignment?
- Yes. Medicare's clinician data says Gary J. Marencin accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Gary J. Marencin?
- (302) 998-0300, as listed in official Medicare / NPI Registry data.
- What is Gary J. Marencin's NPI number?
- 1760930549. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Gary J. Marencin is enrolled with Medicare (CMS data updated 2026-10-02).
- 306 E Main StMiddletown, DE 19709 (302) 998‑0300
Group practices
Medicare enrollment lists Gary J. Marencin as a member of this group (CMS data updated 2026-10-02).
- Ent and Allergy of Delaware LLC42 clinicians in the group
Specialties
- Qualified Audiologistprimary
Other audiologists in Delaware
Clinicians with the same Medicare primary specialty in Delaware — not a recommendation.
Clinician information
| Credential | AU |
|---|---|
| Graduation year | 2008 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1760930549 |
| 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 2026-10-02, retrieved 2026-10-29
- 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