Quick answers
- Does Sos Nalghranyan accept Medicare assignment?
- Yes. Medicare's clinician data says Sos Nalghranyan 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 Sos Nalghranyan see?
- In 2024, CMS data shows 137 Original Medicare patients and 632 services for Sos Nalghranyan. This counts Original Medicare only and measures volume, not quality.
- What is Sos Nalghranyan's NPI number?
- 1740684646. 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 Sos Nalghranyan, 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 | 137 |
|---|---|
| Services billed to Medicare | 632 |
| Different services or procedures | 33 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Most frequent services
- Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)194 services
- Blood test, comprehensive group of blood chemicals (80053)89 services
- Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count (85025)81 services
- Insertion of needle into vein for collection of blood sample (36415)56 services
- Ferritin (blood protein) level (82728)24 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 cholesterol71%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)46%
- Arthritis45%
- Ischemic heart disease34%
- Anxiety34%
Hospitals where Sos Nalghranyan works
Medicare's Facility Affiliation Data lists Sos Nalghranyan 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.
- Franklin Woods Community HospitalJohnson City, TN · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 440184
- Lee County Community HospitalPennington Gap, VA · Critical Access Hospital · Emergency services: listed by Medicare · CCN 491309
- Lonesome Pine HospitalBig Stone Gap, VA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 490114
- Wellmont Holston Valley Medical CenterKingsport, TN · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 440017
Practice locations
Addresses where Sos Nalghranyan is enrolled with Medicare (CMS data updated October 2, 2026).
- 24530 Falcon Place Blvd, Suite 100Abingdon, VA 24211 (276) 619‑0075
- 671 Hwy 58 ENorton, VA 24273 (276) 679‑5874
- 743 Island RdBristol, VA 24201 (276) 469‑4200
Group practices
Medicare enrollment lists Sos Nalghranyan as a member of these groups (CMS data updated October 2, 2026).
- Wellmont Medical Associates Inc433 clinicians in the group
- WPS Providers Inc85 clinicians in the group
Specialties
- Hematology/Oncologyprimary
Other hematologist-oncologists in Abingdon
Clinicians with the same Medicare primary specialty in Abingdon, VA — not a recommendation.
Other clinicians in Wellmont Medical Associates Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2006 (20 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1740684646 |
| 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