DR. ALEX STEWART MD
NPI 1831688639
Anesthesiology in Flushing, NY

Q: What is Alex Stewart's NPI number?

The NPI number for Alex Stewart is 1831688639. It was assigned to this individual provider in the NPPES registry on May 7, 2018.

Q: What is Alex Stewart's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Q: When was this NPI record last updated?

The NPPES record for Alex Stewart was last updated on October 29, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 23 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since May 07, 2018PECOS EnrolledAccepts Medicare Assignment

5645 MAIN ST, FLUSHING, NY 11355(718) 670-2000 Get Directions Write a Review

NPPES record last updated: October 29, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jul 25, 2024, May 7, 2018 (2 updates tracked since 2018).

On this page

About Dr. Alex Stewart Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. ALEX STEWART MD (NPI 1831688639) is an individual anesthesiology provider in Flushing, New York, licensed in New York (314340-01) and active in the NPI registry since May 2018. He is enrolled in Medicare PECOS, is affiliated with New York-presbyterian/queens, and is a graduate of Yale University School Of Medicine (2018).

NPPES Registry Identity

NPI1831688639

Entity TypeIndividualMale

Primary Taxonomy207L00000X

Provider Legal NameDR. ALEX STEWARTCredential: MD

Location Address5645 MAIN STFlushing, NY 11355-5045

Mailing Address575 Lexington AveNew York, NY 10022 · (646) 944-5364

Phone(718) 670-2000

Sole ProprietorNo

Medical School CMSYale University School Of MedicineGraduated 2018

Enumeration DateMay 7, 2018

Last NPPES UpdateOctober 29, 20242 updates tracked since enumeration

NPPES CertifiedOctober 24, 2024

✔ NPI 1831688639 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians

Taxonomy Code207L00000X

License✔ Licensed in NY · 314340-01

Definition

An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.

Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X

5645 MAIN ST, Flushing, NY 11355

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Alex Stewart Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID3870975188

PECOS Enrollment IDI20220803002058

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

Medicare enrollment records show Alex Stewart reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Weill Medical College Of Cornell

6.9 mi

Anesthesiology

525 E 68TH ST
New York, NY 10021

Reassigned Medicare billing, New York enrollment
247 clinicians in this Medicare group

NPI 1619917341 (212) 746-2846

Oswego Hospital

232 mi

Anesthesiology

110 W 6TH ST
Oswego, NY 13126

Reassigned Medicare billing, New York enrollment
122 clinicians in this Medicare group

NPI 1255639043 (315) 349-5511

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

New York-Presbyterian/Queens

Acute Care Hospitals · Flushing, NY

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number330055

Location56-45 Main StreetFlushing, NY 11355 · Queens County

Emergency services Birthing friendly

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

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