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ALEXANDER J CHOU MD
NPI 1124043484
Pediatrics - Pediatric Hematology-Oncology in New York, NY

Active since July 13, 2006PECOS Enrolled
525 E 68TH ST # 695, NEW YORK, NY 10065(212) 746-3400 Get Directions Write a Review

NPPES record last updated: May 12, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: May 12, 2021, May 23, 2019 (2 updates tracked since 2019).

About Alexander J Chou Md NPPES

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

ALEXANDER J CHOU MD (NPI 1124043484) is an individual pediatric hematology-oncology provider in New York, New York, licensed in New York (215553) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1124043484
Entity TypeIndividualMale
Primary Taxonomy2080P0207X
Provider Legal NameALEXANDER J CHOUCredential: MD
Location Address525 E 68TH ST # 695New York, NY 10065-4870
Mailing Address525 East 68th Street, Payson 695Ny, NY 10065 · (212) 746-3400 · Fax (212) 746-8609
Phone(212) 746-3400
Sole ProprietorNo
Enumeration DateJuly 13, 2006
Last NPPES UpdateMay 12, 20212 updates tracked since enumeration
NPPES CertifiedMay 12, 2021
✔ NPI 1124043484 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatrics · Pediatric Hematology-OncologyAllopathic & Osteopathic Physicians
Taxonomy Code2080P0207X
License✔ Licensed in NY · 215553
Definition
A pediatrician trained in the combination of pediatrics, hematology and oncology to recognize and manage pediatric blood disorders and cancerous diseases.
Also ListedPediatricsTaxonomy 208000000X · License 215553 (NY)
525 E 68TH ST # 695, New York, NY 10065
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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 (PECOS)

Alexander J Chou Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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

3

Medicare enrollment records show Alexander Chou reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Weill Medical College Of Cornell
Same address
Neurological Surgery
525 E 68TH ST
New York, NY 10065
  • Reassigned Medicare billing, New York enrollment
  • 980 clinicians in this Medicare group
NPI 1326088675 (212) 746-4684
Memorial Pediatric Group
0.1 mi
Pediatrics
1275 YORK AVE
New York, NY 10021
  • Reassigned Medicare billing, New York enrollment
  • 220 clinicians in this Medicare group
NPI 1750352381 (646) 227-3813
Montefiore Medical Center
2.4 mi
Family Medicine
2633 BROADWAY
New York, NY 10025
  • Reassigned Medicare billing, New York enrollment
  • 5,251 clinicians in this Medicare group
NPI 1760288278 (888) 663-6331

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

Other Providers at the Same Location NPPES

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

LISA PASSMORE TALARICO FNP
Nurse Practitioner (Family)
525 E 68TH ST # 695
NEW YORK, NY 10065
New York County (212) 746-3400

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 Alexander Chou's NPI number?

The NPI number for Alexander Chou is 1124043484. It was assigned to this individual provider in the NPPES registry on July 13, 2006.

Where is Alexander Chou located?

Alexander Chou practices at 525 E 68th St # 695, New York, NY 10065. The listed phone number is (212) 746-3400.

What is Alexander Chou's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Hematology-Oncology, with taxonomy code 2080P0207X.

Is Alexander Chou enrolled in Medicare?

Yes. Alexander Chou is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Alexander Chou's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Alexander Chou reassigns Medicare benefits to 3 organizations: Weill Medical College Of Cornell (New York, NY), Memorial Pediatric Group (New York, NY) and Montefiore Medical Center (New York, NY). Each 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 Alexander Chou's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Alexander Chou was last updated on May 12, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years 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.