DIANNA HARDATT M.D.
NPI 1295268738
Pediatrics - Pediatric Hematology-Oncology in Bronx, NY

Active since April 11, 2017PECOS Enrolled
1650 GRAND CONCOURSE, BRONX, NY 10457(718) 992-7669 Get Directions Write a Review

NPPES record last updated: November 19, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Nov 19, 2025, Aug 6, 2020, Apr 11, 2017 (3 updates tracked since 2017).

About Dianna Hardatt M.d. NPPES

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

DIANNA HARDATT M.D. (NPI 1295268738) is an individual pediatric hematology-oncology provider in Bronx, New York, licensed in New York (307544) and active in the NPI registry since April 2017. She is enrolled in Medicare PECOS and is a graduate of Other (2016).

NPPES Registry Identity

NPI1295268738
Entity TypeIndividualFemale
Primary Taxonomy2080P0207X
Provider Legal NameDIANNA HARDATTCredential: M.D.
Location Address1650 GRAND CONCOURSEBronx, NY 10457-7679
Mailing Address1650 Grand ConcourseBronx, NY 10457-7679 · (718) 992-7669
Sole ProprietorYes
Medical School CMSOtherGraduated 2016
Enumeration DateApril 11, 2017
Last NPPES UpdateNovember 19, 20253 updates tracked since enumeration
NPPES CertifiedNovember 19, 2025
NPI 1295268738 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 · 307544
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 307544 (NY)
1650 GRAND CONCOURSE, Bronx, NY 10457

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare (PECOS)

Dianna Hardatt M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID2961995774
PECOS Enrollment IDI20251201002700
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.

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.

Speech-Language Pathologist
1650 GRAND CONCOURSE
BRONX, NY 10457
Clinic/Center
1650 GRAND CONCOURSE
BRONX, NY 10457
Emergency Medicine
1650 GRAND CONCOURSE
BRONX, NY 10457
Family Medicine
1650 GRAND CONCOURSE
BRONX, NY 10457
Student in an Organized Health Care Education/Training Program
1650 GRAND CONCOURSE
BRONX, NY 10457
Internal Medicine (Gastroenterology)
1650 GRAND CONCOURSE
BRONX, NY 10457
Internal Medicine
1650 GRAND CONCOURSE
BRONX, NY 10457
Family Medicine
1650 GRAND CONCOURSE
BRONX, NY 10457

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 Dianna Hardatt's NPI number?

The NPI number for Dianna Hardatt is 1295268738. It was assigned to this individual provider in the NPPES registry on April 11, 2017.

Where is Dianna Hardatt located?

Dianna Hardatt practices at 1650 Grand Concourse, Bronx, NY 10457. The listed phone number is (718) 992-7669.

What is Dianna Hardatt's specialty?

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

Is Dianna Hardatt enrolled in Medicare?

Yes. Dianna Hardatt is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Dianna Hardatt was last updated on November 19, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.