Quick answers
- Does Vartan D. Papazian accept Medicare assignment?
- Yes. Medicare's clinician data says Vartan D. Papazian 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 Vartan D. Papazian see?
- In 2024, CMS data shows 551 Original Medicare patients and 3,293 services for Vartan D. Papazian. This counts Original Medicare only and measures volume, not quality.
- What is Vartan D. Papazian's NPI number?
- 1093126088. 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 Vartan D. Papazian, 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 | 551 |
|---|---|
| Services billed to Medicare | 3,293 |
| Different services or procedures | 26 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)1,828 services
- Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)383 services
- Critical care, first 30-74 minutes (99291)226 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)170 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)145 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 blood pressure75%
- High cholesterol75%
- Chronic kidney disease75%
- Arthritis74%
- Ischemic heart disease73%
- Diabetes71%
Hospitals where Vartan D. Papazian works
Medicare's Facility Affiliation Data lists Vartan D. Papazian 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.
- Antelope Valley HospitalLancaster, CA · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 050056
- Cedars-Sinai Medical CenterLos Angeles, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050625
- Northridge Hospital Medical CenterNorthridge, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050116
- Providence Holy Cross Medical CenterMission Hills, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050278
- Valley Presbyterian HospitalVan Nuys, CA · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 050126
Practice locations
Addresses where Vartan D. Papazian is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 6; the Medicare profile lists all.
- 1206 W Ave J, Suite 220bLancaster, CA 93534 (661) 942‑6565
- 15031 Rinaldi StMission Hills, CA 91345 (818) 496‑1735
- 15107 Vanowen StVan Nuys, CA 91405 (818) 902‑2913
- 18350 Roscoe Blvd, Suite 714Northridge, CA 91325 (818) 885‑0063
- 38600 Medical Ctr DrPalmdale, CA 93551 (661) 382‑5000
Group practices
Medicare enrollment lists Vartan D. Papazian as a member of these groups (CMS data updated October 2, 2026).
- Modern Nephrology a Professional Medical Corporation3 clinicians in the group
- Moufid Nemeh MD2 clinicians in the group
Specialties
- Nephrologyprimary
- Internal Medicinealso
Other nephrologists in Lancaster
Clinicians with the same Medicare primary specialty in Lancaster, CA — not a recommendation.
Other clinicians in Modern Nephrology a Professional Medical Corporation
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Graduation year | 2014 (12 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) | 1093126088 |
| 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