Quick answers
- Does Shahin Assadnia accept Medicare assignment?
- Yes. Medicare's clinician data says Shahin Assadnia 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 Shahin Assadnia see?
- In 2024, CMS data shows 319 Original Medicare patients and 2,141 services for Shahin Assadnia. This counts Original Medicare only and measures volume, not quality.
- What is Shahin Assadnia's NPI number?
- 1639178932. 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 Shahin Assadnia, 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 | 319 |
|---|---|
| Services billed to Medicare | 2,141 |
| Different services or procedures | 72 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml (Q9967)1,300 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)109 services
- Ultrasound of leg arteries or artery grafts (93925)105 services
- Ultrasound study of arm and leg arteries (93922)78 services
- Ultrasound study of arm or leg veins with compression and maneuvers (93970)68 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%
- Arthritis63%
- Diabetes54%
- Ischemic heart disease41%
- Chronic kidney disease41%
Hospitals where Shahin Assadnia works
Medicare's Facility Affiliation Data lists Shahin Assadnia 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.
- Claiborne Medical CenterTazewell, TN · Acute Care Hospital · Emergency services: listed by Medicare · CCN 440057
- Morristown Hamblen Hospital AssociationMorristown, TN · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 440030
Practice locations
Addresses where Shahin Assadnia is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 6; the Medicare profile lists all.
- 1125 W 1st N St, Suite BMorristown, TN 37814 (423) 317‑6560
- 121 Newport Towne CtrNewport, TN 37821 (423) 532‑8621
- 3301 W Andrew Johnson HwyMorristown, TN 37814 (423) 317‑6560
- 420 W Morris Blvd, Suite 400hMorristown, TN 37813 (423) 586‑4545
- 657 E Broadway Blvd, Suite AJefferson City, TN 37760 (865) 475‑9062
Group practices
Medicare enrollment lists Shahin Assadnia as a member of this group (CMS data updated October 2, 2026).
- Healthstar Physicians PC88 clinicians in the group
Specialties
- Vascular Surgeryprimary
Other vascular surgeons in Tennessee
Clinicians with the same Medicare primary specialty in Tennessee — not a recommendation.
Other clinicians in Healthstar Physicians PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Virginia School Of Medicine |
| Graduation year | 1993 (33 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1639178932 |
| 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