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DR. PETER DAYAN
NPI 1558330688
Pediatrics - Pediatric Emergency Medicine in New York, NC

Active since March 14, 2006PECOS Enrolled
COLUMBIA UNVERSITY DEPARTMENT PEDIATRICS, 3959 BROADWAY, NEW YORK, NC 10032(221) 304-7250(212) 544-1974 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Peter Dayan NPPES

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

DR. PETER DAYAN (NPI 1558330688) is an individual pediatric emergency medicine provider in New York, North Carolina, licensed in New York (189135) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1558330688
Entity TypeIndividualMale
Primary Taxonomy2080P0204X
Provider Legal NameDR. PETER DAYAN
Location AddressCOLUMBIA UNVERSITY DEPARTMENT PEDIATRICS, 3959 BROADWAYNew York, NC 10032
Mailing Address18 Windsor RdHastings On Hudson, NY 10706-3011 · (914) 478-8861
Phone(221) 304-7250
Fax(212) 544-1974
Sole ProprietorNo
Enumeration DateMarch 14, 2006
Last NPPES UpdateJuly 8, 2007
✔ NPI 1558330688 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatrics · Pediatric Emergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code2080P0204X
License✔ Licensed in NY · 189135
Definition
A pediatrician who has special qualifications to manage emergencies in infants and children.
COLUMBIA UNVERSITY DEPARTMENT PEDIATRICS, New York, NC 10032
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Other Identifiers 3

Medicare ID-Type Unspecified01621329NY
Medicare UPING21040NY
Medicare ID-Type Unspecified526381NY

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Peter Dayan 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 Reassignment

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

Trustees Of Columbia University In The City Of New York
0.1 mi
Anesthesiology
622 W 168TH ST
New York, NY 10032
  • Reassigned Medicare billing, New York enrollment
  • 3,922 clinicians in this Medicare group
NPI 1477068971 (212) 305-9876

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 6

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

DR. MICHAEL WEINER MD
Pediatrics (Pediatric Hematology-Oncology)
COLUMBIA UNVERSITY DEPARTMENT PEDIATRICS, 3959 BROADWAY
NEW YORK, NY 10032
New York County (221) 304-7250
DR. ALEJANDRO TORRES
Pediatrics (Pediatric Cardiology)
COLUMBIA UNVERSITY DEPARTMENT PEDIATRICS, 3959 BROADWAY
NEW YORK, NY 10032
New York County (212) 304-7250
DR. LAURENCE WILLIAMS MD
Pediatrics
COLUMBIA UNVERSITY DEPARTMENT PEDIATRICS, 3959 BROADWAY
NEW YORK, NY 10032
New York County (221) 304-7250
DR. MIRNA GIORDANO
Pediatrics
COLUMBIA UNVERSITY DEPARTMENT PEDIATRICS, 3959 BROADWAY
NEW YORK, NC 10032
New York County (212) 304-7250
DR. DARRELL J YAMASHIRO
Pediatrics (Pediatric Hematology-Oncology)
COLUMBIA UNVERSITY DEPARTMENT PEDIATRICS, 3959 BROADWAY
NEW YORK, NY 10032
New York County (221) 304-7297
DR. MARIANNE GARLAND
Pediatrics (Neonatal-Perinatal Medicine)
COLUMBIA UNVERSITY DEPARTMENT PEDIATRICS, 3959 BROADWAY
NEW YORK, NY 10032
New York County (221) 304-7297

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 Peter Dayan's NPI number?

The NPI number for Peter Dayan is 1558330688. It was assigned to this individual provider in the NPPES registry on March 14, 2006.

Where is Peter Dayan located?

Peter Dayan practices at Columbia Unversity Department Pediatrics 3959 Broadway, New York, NC 10032. The listed phone number is (221) 304-7250.

What is Peter Dayan's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Emergency Medicine, with taxonomy code 2080P0204X.

Is Peter Dayan enrolled in Medicare?

Yes. Peter Dayan is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Peter Dayan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Peter Dayan reassigns Medicare benefits to Trustees Of Columbia University In The City Of New York (New York, NY). 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 Peter Dayan'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 Peter Dayan was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.