Quick answers
- Does Gary B. Kershner accept Medicare assignment?
- Yes. Medicare's clinician data says Gary B. Kershner 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 Gary B. Kershner see?
- In 2024, CMS data shows 244 Original Medicare patients and 1,008 services for Gary B. Kershner. This counts Original Medicare only and measures volume, not quality.
- What is Gary B. Kershner's NPI number?
- 1518937234. 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 Gary B. Kershner, 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 | 244 |
|---|---|
| Services billed to Medicare | 1,008 |
| Different services or procedures | 39 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)286 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)161 services
- Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)125 services
- Administration of influenza virus vaccine (G0008)66 services
- Influenza vaccine split virus, preservative free (90662)61 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 pressure73%
- Arthritis34%
- Diabetes29%
- Ischemic heart disease19%
- Anxiety18%
Hospitals where Gary B. Kershner works
Medicare's Facility Affiliation Data lists Gary B. Kershner at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Morristown Medical CenterMorristown, NJ · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 310015
- Overlook Medical CenterSummit, NJ · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 310051
Practice locations
Addresses where Gary B. Kershner is enrolled with Medicare (CMS data updated October 2, 2026).
- 100 Madison AveMorristown, NJ 07960 (973) 971‑5596
- 1000 Galloping Hill RdUnion, NJ 07083
Group practices
Medicare enrollment lists Gary B. Kershner as a member of this group (CMS data updated October 2, 2026).
- Practice Associates Medical Group1,408 clinicians in the group
Specialties
Other family doctors in Morristown
Clinicians with the same Medicare primary specialty in Morristown, NJ — not a recommendation.
Other clinicians in Practice Associates Medical Group
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | Rowan University School Of Osteopathic Medicine |
| Graduation year | 2000 (26 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1518937234 |
| 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- 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