Alex Stewart, MD
NPI 1831688639 · Anesthesiology Physician · Flushing, NY
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alex Stewart, MD is a Anesthesiology Physician provider in Flushing, NY (NPI 1831688639).
Provider details
- NPI number
- 1831688639
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
8 yrs in NPPES registry
- Profile completeness33% of score
83% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 methodology.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$40 across 2 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
- 2018-05-07
- Last updated
- 2024-10-29
- Certified
- 2024-10-24
Frequently asked questions
- What is Alex Stewart's NPI number?
- Alex Stewart's National Provider Identifier (NPI) is 1831688639, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alex Stewart's specialty?
- Alex Stewart is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Alex Stewart located?
- Alex Stewart's practice location on file with NPPES is 5645 Main St, Flushing, NY 11355-5045.
- What is Alex Stewart's phone number?
- The practice phone number listed in the NPPES registry for Alex Stewart is (718) 670-2000.
- Does Alex Stewart accept Medicare?
- Alex Stewart is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alex Stewart's NPI active?
- Yes — Alex Stewart's NPI (1831688639) is active in the NPPES registry as of the last update on 2024-10-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.