Quick answers
- Does Nicholas G. Mardirossian accept Medicare assignment?
- Yes. Medicare's clinician data says Nicholas G. Mardirossian 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.
- What is Nicholas G. Mardirossian's NPI number?
- 1700676806. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Nicholas G. Mardirossian works
Medicare's Facility Affiliation Data lists Nicholas G. Mardirossian 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.
- Conemaugh Memorial Medical CenterJohnstown, PA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 390110
Practice locations
Addresses where Nicholas G. Mardirossian is enrolled with Medicare (CMS data updated October 2, 2026).
- 1086 Franklin StJohnstown, PA 15905 (814) 534‑9000
Group practices
Medicare enrollment lists Nicholas G. Mardirossian as a member of this group (CMS data updated October 2, 2026).
- Grove City Anesthesia and Pain Management, PLLC59 clinicians in the group
Specialties
Find other Certified Registered Nurse Anesthetist (CRNA) doctors in Pennsylvania →
Other nurse anesthetists in Johnstown
Clinicians with the same Medicare primary specialty in Johnstown, PA — not a recommendation.
Other clinicians in Grove City Anesthesia and Pain Management, PLLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2025 (1 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1700676806 |
| 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
- 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