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DR. NEKTARIOS GEORGE MASTORIS MD
NPI 1437712379
Anesthesiology in Brooklyn, NY

Active since April 16, 2019PECOS EnrolledAccepts Medicare Assignment
1 BROOKDALE PLZ, BROOKLYN, NY 11212(718) 240-6213 Get Directions Write a Review

NPPES record last updated: November 25, 2024. Verified against the NPPES registry weekly; last sync: November 08, 2026.

About Dr. Nektarios George Mastoris Md NPPES

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

DR. NEKTARIOS GEORGE MASTORIS MD (NPI 1437712379) is an individual anesthesiology provider in Brooklyn, New York, licensed in Illinois (036165374) and active in the NPI registry since April 2019. He is enrolled in Medicare PECOS, is affiliated with Amita Health Resurrection Medical Center, and is a graduate of Other (2018).

NPPES Registry Identity

NPI1437712379
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameDR. NEKTARIOS GEORGE MASTORISCredential: MD
Location Address1 BROOKDALE PLZBrooklyn, NY 11212-3139
Mailing Address1 Brookdale PlzBrooklyn, NY 11212-3139 · (718) 240-6213
Phone(718) 240-6213
Sole ProprietorYes
Medical School CMSOtherGraduated 2018
Enumeration DateApril 16, 2019
Last NPPES UpdateNovember 25, 2024
NPPES CertifiedNovember 25, 2024
✔ NPI 1437712379 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in IL · 036165374
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
1 BROOKDALE PLZ, Brooklyn, NY 11212
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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. Nektarios George Mastoris 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 ID5597290619
PECOS Enrollment IDI20241127000047
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 Reassignment

Medicare enrollment records show Nektarios Mastoris reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Northstar Anesthesia Of Illinois, LLC
1,391 mi
Anesthesiology
2000 E LAMAR BLVD STE 400
Arlington, TX 76006
  • Reassigned Medicare billing, Illinois enrollment
  • 735 clinicians in this Medicare group
NPI 1962822395 (817) 583-7421

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 2

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

Amita Health Resurrection Medical Center

Acute Care Hospitals · Chicago, IL
4/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number140117
Location7435 W Talcott AvenueChicago, IL 60631 · Cook County
Emergency services Birthing friendly

Presence Saints Mary And Elizabeth Medical Center

Acute Care Hospitals · Chicago, IL
3/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number140180
Location2233 W Division StChicago, IL 60622 · Cook 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.

MADI LINDAUER MD
Emergency Medicine
1 BROOKDALE PLZ
BROOKLYN, NY 11212
Kings County (718) 240-5000
DR. CAMERON MANCHESTER MD
Radiology (Diagnostic Radiology)
1 BROOKDALE PLZ
BROOKLYN, NY 11212
Kings County (806) 341-0428
DR. ENID NAAMOMO OTOO DO
Emergency Medicine
1 BROOKDALE PLZ
BROOKLYN, NY 11212
Kings County (718) 240-7225
NAYAN DOOBAY STUDENT
Student in an Organized Health Care Education/Training Program
1 BROOKDALE PLZ
BROOKLYN, NY 11212
Kings County (718) 240-6205
COLBY VUONG
Student in an Organized Health Care Education/Training Program
1 BROOKDALE PLZ
BROOKLYN, NY 11212
Kings County (718) 240-6552
MONA ROSENZWEIG
Student in an Organized Health Care Education/Training Program
1 BROOKDALE PLZ
BROOKLYN, NY 11212
Kings County (718) 240-5000
VANESSA DE DANZINE PA
Physician Assistant
1 BROOKDALE PLZ, BROOKDALE UNIVERSITY HOSPITAL & MEDICAL CENTER
BROOKLYN, NY 11212
Kings County (718) 240-5180
DR. MARTHEL PIERRE-ANTOINE DODARD M.D.
Personal Emergency Response Attendant
1 BROOKDALE PLZ
BROOKLYN, NY 11212
Kings County (718) 240-5000

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Nektarios Mastoris's NPI number?

The NPI number for Nektarios Mastoris is 1437712379. It was assigned to this individual provider in the NPPES registry on April 16, 2019.

Where is Nektarios Mastoris located?

Nektarios Mastoris practices at 1 Brookdale Plz, Brooklyn, NY 11212. The listed phone number is (718) 240-6213.

What is Nektarios Mastoris's specialty?

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

Is Nektarios Mastoris enrolled in Medicare?

Yes. Nektarios Mastoris is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Nektarios Mastoris's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Nektarios Mastoris reassigns Medicare benefits to Northstar Anesthesia Of Illinois, LLC (Arlington, TX). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Nektarios Mastoris's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Nektarios Mastoris affiliated with any hospitals?

According to CMS data, Nektarios Mastoris is affiliated with Amita Health Resurrection Medical Center and Presence Saints Mary And Elizabeth Medical Center.

When was this NPI record last updated?

The NPPES record for Nektarios Mastoris was last updated on November 25, 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.