Quick answers
- Where does Mark A. Diehl see patients?
- Medicare's clinician data lists 2 practice locations, including East Hanover, NJ. Call before your visit to confirm the address.
- What is Mark A. Diehl's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does Mark A. Diehl accept Medicare assignment?
- Yes. Medicare's clinician data says Mark A. Diehl 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 Mark A. Diehl?
- (973) 995-6700, as listed in official Medicare / NPI Registry data.
- What is Mark A. Diehl's NPI number?
- 1982204939. 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 Mark A. Diehl is enrolled with Medicare (CMS data updated 2026-10-02).
- 1 S Ridgedale Ave, Sycamore LivingEast Hanover, NJ 07936 (973) 995‑6700
- 120 Eagle Rock Ave, Suite 154East Hanover, NJ 07936 (201) 407‑5145
Group practices
Medicare enrollment lists Mark A. Diehl as a member of this group (CMS data updated 2026-10-02).
- Rehabilitation Specialists of New Jersey LLC15 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in East Hanover
Clinicians with the same Medicare primary specialty in East Hanover, NJ — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2020 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1982204939 |
| 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