Quick answers
- Does Xenophon S. Speros accept Medicare assignment?
- Yes. Medicare's clinician data says Xenophon S. Speros 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 Xenophon S. Speros see?
- In 2024, CMS data shows 17 Original Medicare patients and 46 services for Xenophon S. Speros. This counts Original Medicare only and measures volume, not quality.
- What is Xenophon S. Speros's NPI number?
- 1831932078. 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 Xenophon S. Speros, 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 | 17 |
|---|---|
| Services billed to Medicare | 46 |
| Different services or procedures | 14 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
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 pressure65%
Hospitals where Xenophon S. Speros works
Medicare's Facility Affiliation Data lists Xenophon S. Speros 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.
- Cooperman Barnabas Medical CenterLivingston, NJ · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 310076
Practice locations
Addresses where Xenophon S. Speros is enrolled with Medicare (CMS data updated October 2, 2026).
- 1 Diamond Hill RdBerkeley Heights, NJ 07922 (908) 273‑4300
- 1 Diamond Hill Rd, Summit Medical GroupBerkeley Heights, NJ 07922
- 94 Old Short Hills RdLivingston, NJ 07039 (973) 322‑5630
Group practices
Medicare enrollment lists Xenophon S. Speros as a member of these groups (CMS data updated October 2, 2026).
- Summit Medical Group PA1,212 clinicians in the group
- Barnabas Health Medical Group PC1,070 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Berkeley Heights
Clinicians with the same Medicare primary specialty in Berkeley Heights, NJ — not a recommendation.
Other clinicians in Summit Medical Group PA
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2024 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1831932078 |
| 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