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DR. AARON JEFTHY T. YEE M.D.
NPI 1114206737
Pediatrics - Neonatal-Perinatal Medicine in Wilmington, DE

Active since August 13, 2011PECOS Enrolled
1600 ROCKLAND RD, WILMINGTON, DE 19803(302) 651-4200 Get Directions Write a Review

NPPES record last updated: October 20, 2017. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Aaron Jefthy T. Yee M.d. NPPES

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

DR. AARON JEFTHY T. YEE M.D. (NPI 1114206737) is an individual neonatal-perinatal medicine provider in Wilmington, Delaware, licensed in Delaware (C1-0012301) and active in the NPI registry since August 2011. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1114206737
Entity TypeIndividualMale
Primary Taxonomy2080N0001X
Provider Legal NameDR. AARON JEFTHY T. YEECredential: M.D.
Location Address1600 ROCKLAND RDWilmington, DE 19803-3607
Mailing AddressPo Box 191Rockland, DE 19732-0191 · (302) 651-4000 · Fax (302) 651-4945
Phone(302) 651-4200
Sole ProprietorNo
Enumeration DateAugust 13, 2011
Last NPPES UpdateOctober 20, 2017
✔ NPI 1114206737 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatrics · Neonatal-Perinatal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code2080N0001X
License✔ Licensed in DE · C1-0012301
Definition
A pediatrician who is the principal care provider for sick newborn infants. Clinical expertise is used for direct patient care and for consulting with obstetrical colleagues to plan for the care of mothers who have high-risk pregnancies.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
1600 ROCKLAND RD, Wilmington, DE 19803
Open in Google Maps ↗

Other Names 1

Other Name (5)Aaron Jefthy Tan Yee

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from NH Healthy Families, Ambetter from Sunflower Health Plan, Ambetter Health and more.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Aaron Jefthy T. Yee M.d. 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

2

Medicare enrollment records show Aaron Yee reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

The Nemours Foundation
Same address
Multi-Specialty
1600 ROCKLAND RD
Wilmington, DE 19803
  • Reassigned Medicare billing, Delaware enrollment
  • 526 clinicians in this Medicare group
NPI 1366594699 (302) 651-4000
Bayhealth Medical Center, Inc
42 mi
Cardiovascular Disease
560 S GOVERNORS AVE
Dover, DE 19904
  • Reassigned Medicare billing, Delaware enrollment
  • Also billed through NPI 1356808208 (Delaware)
  • 163 clinicians in this Medicare group
NPI 1588456479 (302) 744-7113

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 20

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

JOANNA COSTA MD
Pediatrics (Neonatal-Perinatal Medicine)
1600 ROCKLAND RD
WILMINGTON, DE 19803
New Castle County (302) 651-5795
LAURA MARIE KISZKIEL MD
Obstetrics & Gynecology
1600 ROCKLAND RD
WILMINGTON, DE 19803
New Castle County (302) 651-4200
ALLYSON JANE MENARD SLP
Speech-Language Pathologist
1600 ROCKLAND RD
WILMINGTON, DE 19803
New Castle County (302) 651-4200
SALWA ELIZABETH SULIEMAN D.O.
Pediatrics (Pediatric Infectious Diseases)
1600 ROCKLAND RD
WILMINGTON, DE 19803
New Castle County (302) 651-4200
DR. WAYNE S MOORE II PHARMD
Pharmacist (Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist)
1600 ROCKLAND RD
WILMINGTON, DE 19803
New Castle County (302) 651-5700
DR. LAUREN ASHLEY MAY M.D.
Radiology (Pediatric Radiology)
1600 ROCKLAND RD
WILMINGTON, DE 19803
New Castle County (302) 651-4200
DR. MARY IAMPIETRO PH.D.
Psychologist (Clinical Child & Adolescent)
1600 ROCKLAND RD
WILMINGTON, DE 19803
New Castle County (302) 651-4200
KATHERINE HARRIGAN
Nurse Practitioner
1600 ROCKLAND RD
WILMINGTON, DE 19803
New Castle County (302) 651-4200

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 Aaron Yee's NPI number?

The NPI number for Aaron Yee is 1114206737. It was assigned to this individual provider in the NPPES registry on August 13, 2011. The provider is also known as Aaron Jefthy Tan Yee.

Where is Aaron Yee located?

Aaron Yee practices at 1600 Rockland Rd, Wilmington, DE 19803. The listed phone number is (302) 651-4200.

What is Aaron Yee's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Neonatal-Perinatal Medicine, with taxonomy code 2080N0001X.

Is Aaron Yee enrolled in Medicare?

Yes. Aaron Yee is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Aaron Yee's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Aaron Yee reassigns Medicare benefits to 2 organizations: The Nemours Foundation (Wilmington, DE) and Bayhealth Medical Center, Inc (Dover, DE). 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 Aaron Yee's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Aaron Yee accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from NH Healthy Families, Ambetter from Sunflower Health Plan and AmeriHealth Caritas Next and 1 other insurer list Aaron Yee as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Aaron Yee was last updated on October 20, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.