Dimitrios Sigounas, M.D.
NPI 1528228749 · Neurological Surgery Physician · Washington, DC
Enrolled with Medicare as Practitioner - Neurosurgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Dimitrios Sigounas, M.D. is a Neurological Surgery Physician provider in Washington, DC (NPI 1528228749).
Provider details
- NPI number
- 1528228749
- Entity type
- Individual
- Primary specialty
- Neurological Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- MD043336 (DC)
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
18 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
116 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) |
|---|---|---|
| Insertion of Tube Into Brain Artery for Diagnosis Or Treatment With Review By Radiologist36226 | 29 | $295 |
| Insertion of Tube Into Internal Neck Artery for Diagnosis Or Treatment With Review By Radiologist36224 | 23 | $409 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 19 | $185 |
| Insertion of Tube Into Intracranial Artery for Diagnosis Or Treatment With Review By Radiologist36223 | 18 | $200 |
| Occlusion of Central Nervous System Or Spinal Cord Artery61624 | 16 | $1,141 |
| Use of a Drug to Induce Depression of Consciousness By Physician Performing a Procedure (5 Years Or Older), Initial 15 Minutes99152 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$79 across 4 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
- 2008-06-11
- Last updated
- 2022-08-13
- Certified
- 2022-08-13
Frequently asked questions
- What is Dimitrios Sigounas's NPI number?
- Dimitrios Sigounas's National Provider Identifier (NPI) is 1528228749, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Dimitrios Sigounas's specialty?
- Dimitrios Sigounas is listed in the NPPES registry with a primary specialty of Neurological Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Dimitrios Sigounas located?
- Dimitrios Sigounas's practice location on file with NPPES is 2150 Pennsylvania Ave Nw, Washington, DC 20037-3201.
- What is Dimitrios Sigounas's phone number?
- The practice phone number listed in the NPPES registry for Dimitrios Sigounas is (202) 741-2754.
- Does Dimitrios Sigounas accept Medicare?
- Dimitrios Sigounas is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Dimitrios Sigounas's NPI active?
- Yes — Dimitrios Sigounas's NPI (1528228749) is active in the NPPES registry as of the last update on 2022-08-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.