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Neurosurgery

Justiss A. Kallos, MD

Works at hospitals in New York, NY · New York

Summary

Dr. Justiss A. Kallos, MD is a neurosurgeon at 504 W 35th St, New York, NY 10001. Phone: (888) 922-2257. Accepts Medicare assignment. NPI 1053848986. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026.

  • Specialty: Neurosurgeon (Medicare lists Neurosurgery)
  • Address: 504 W 35th St, New York, NY 10001 · Directions
  • Phone: (888) 922‑2257
  • Medicare: Accepts Medicare assignment
  • Hospital: New York-Presbyterian Hospital
  • Group practice: Weill Medical College of Cornell
  • Medical school: Vanderbilt University School Of Medicine · graduated 2017 (9 years since medical school)
  • Gender (as listed): Female
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Justiss A. Kallos, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Justiss A. Kallos accept Medicare assignment?
Yes. Medicare's clinician data says Justiss A. Kallos accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
What is Justiss A. Kallos's NPI number?
1053848986. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Justiss A. Kallos works

Medicare's Facility Affiliation Data lists Justiss A. Kallos at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where Justiss A. Kallos is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Justiss A. Kallos as a member of this group (CMS data updated October 2, 2026).

  • Weill Medical College of Cornell2,051 clinicians in the group

Specialties

Find other Neurosurgery doctors in New York →

Other neurosurgeons in New York

Clinicians with the same Medicare primary specialty in New York, NY — not a recommendation.

All neurosurgeons in New York →

Other clinicians in Weill Medical College of Cornell

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolVanderbilt University School Of Medicine
Graduation year2017 (9 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1053848986
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  5. Medicare Care Compare — official Medicare tool to look up clinicians