Apostolos Tassiopoulos, M.D.
NPI 1073555884 · Vascular Surgery Physician · Stony Brook, NY
Enrolled with Medicare as Practitioner - Vascular Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Apostolos Tassiopoulos, M.D. is a Vascular Surgery Physician provider in Stony Brook, NY (NPI 1073555884).
Provider details
- NPI number
- 1073555884
- Entity type
- Individual
- Primary specialty
- Vascular Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 002580 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
3,009 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Ultrasound Study of Arm Or Leg Veins With Compression and Maneuvers93970 | 846 | $38 |
| Ultrasound Study of One Arm Or Leg Veins With Compression and Maneuvers93971 | 280 | $24 |
| Ultrasound of Both Sides of Head and Neck Blood Flow93880 | 191 | $44 |
| Ultrasound of Both Sides of Head and Neck Blood Flow93880 | 167 | $226 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 166 | $149 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 157 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$27,740 across 58 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-13
- Last updated
- 2008-03-20
Frequently asked questions
- What is Apostolos Tassiopoulos's NPI number?
- Apostolos Tassiopoulos's National Provider Identifier (NPI) is 1073555884, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Apostolos Tassiopoulos's specialty?
- Apostolos Tassiopoulos is listed in the NPPES registry with a primary specialty of Vascular Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Apostolos Tassiopoulos located?
- Apostolos Tassiopoulos's practice location on file with NPPES is University Hospital, L5, Stony Brook, NY 11794-0001.
- What is Apostolos Tassiopoulos's phone number?
- The practice phone number listed in the NPPES registry for Apostolos Tassiopoulos is (631) 444-2565.
- Does Apostolos Tassiopoulos accept Medicare?
- Apostolos Tassiopoulos is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Apostolos Tassiopoulos's NPI active?
- Yes — Apostolos Tassiopoulos's NPI (1073555884) is active in the NPPES registry as of the last update on 2008-03-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.