Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. LILIANE DIAB M.D.
NPI 1396939161
Pediatrics - Obesity Medicine in Aurora, CO

Q: What is Liliane Diab's NPI number?

The NPI number for Liliane Diab is 1396939161. It was assigned to this individual provider in the NPPES registry on September 4, 2007. The provider is also known as Dr. Liliane Khoury-Diab M.D..

Q: What is Liliane Diab's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Obesity Medicine, with taxonomy code 2080B0002X.

Q: When was this NPI record last updated?

The NPPES record for Liliane Diab was last updated on September 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 22 days 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.

Active since September 04, 2007PECOS Enrolled

13123 E 16TH AVE, AURORA, CO 80045(720) 777-1234 Get Directions Write a Review

NPPES record last updated: September 29, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

On this page

About Dr. Liliane Diab M.d. NPPES

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

DR. LILIANE DIAB M.D. (NPI 1396939161) is an individual obesity medicine provider in Aurora, Colorado, licensed in Colorado (38070) and active in the NPI registry since September 2007. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1396939161

Entity TypeIndividualFemale

Primary Taxonomy2080B0002X

Provider Legal NameDR. LILIANE DIABCredential: M.D.

Location Address13123 E 16TH AVEAurora, CO 80045-7106

Mailing AddressPo Box 110429Aurora, CO 80042-0429

Phone(720) 777-1234

Sole ProprietorNo

Enumeration DateSeptember 4, 2007

Last NPPES UpdateSeptember 29, 2026

NPPES CertifiedSeptember 29, 2026

✔ NPI 1396939161 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatrics · Obesity MedicineAllopathic & Osteopathic Physicians

Taxonomy Code2080B0002X

License✔ Licensed in CO · 38070

Definition

A pediatrician who specializes in the treatment of obesity demonstrates competency in and a thorough understanding of the treatment of obesity and the genetic, biologic, environmental, social, and behavioral factors that contribute to obesity. The obesity medicine physician employs therapeutic interventions including diet, physical activity, behavioral change, and pharmacotherapy. The obesity medicine physician utilizes a comprehensive approach, and may include additional resources such as dietitians, exercise physiologists, mental health professionals and bariatric surgeons as indicated to achieve optimal results. Additionally, the obesity medicine physician maintains competency in providing pre- peri- and post-surgical care of bariatric surgery patients, promotes the prevention of obesity, and advocates for those who suffer from obesity.

Also ListedPediatricsTaxonomy 208000000X · License 38070 (CO)

13123 E 16TH AVE, Aurora, CO 80045

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Other Names 1

Former Name (1)Dr. Liliane Khoury-diab M.d.

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include UnitedHealthcare.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. Liliane Diab 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 Reassignment

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

University Physicians Incorporated

0.1 mi

Pediatrics

13123 E 16TH AVE
Aurora, CO 80045

Reassigned Medicare billing, Colorado enrollment
4,283 clinicians in this Medicare group

NPI 1083662498 (720) 777-1234

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.

ERIN TERAVEST PA

Physician Assistant (Surgical)

13123 E 16TH AVE
AURORA, CO 80045

Adams County (720) 777-1234

MELISSA KAY FRAZER AA-C

Anesthesiologist Assistant

13123 E 16TH AVE
AURORA, CO 80045

Adams County (720) 777-1234

RACHEL MARIE RANWEILER

Registered Nurse (Neonatal Intensive Care)

13123 E 16TH AVE
AURORA, CO 80045

Adams County (720) 777-6857

DR. KATHRYN LYN PEGAN AU.D.

Audiologist

13123 E 16TH AVE, 2ND FLOOR OUTPATIENT PAVILION - AUDIOLOGY
AURORA, CO 80045

Adams County (720) 777-1961

MRS. KRISTEN L HOLDER FNP-C, APRN-BC

Nurse Practitioner (Psychiatric/Mental Health)

13123 E 16TH AVE
AURORA, CO 80045

Adams County (720) 777-1234

MRS. JILL M MARKS RN, APN

Nurse Practitioner (Pediatrics)

13123 E 16TH AVE
AURORA, CO 80045

Adams County (720) 777-1234

MRS. WENDELYN M BARRETT NNP

Registered Nurse (Neonatal Intensive Care)

13123 E 16TH AVE
AURORA, CO 80045

Adams County (720) 777-6857

DR. TIMOTHY OWEN VANDERKOOY MD

Emergency Medicine (Pediatric Emergency Medicine)

13123 E 16TH AVE, AURORA, CO 80045-7106
AURORA, CO 80045

Adams County (720) 777-1234

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 Liliane Diab's NPI number?

The NPI number for Liliane Diab is 1396939161. It was assigned to this individual provider in the NPPES registry on September 4, 2007. The provider is also known as Dr. Liliane Khoury-Diab M.D..

Where is Liliane Diab located?

Liliane Diab practices at 13123 E 16th Ave, Aurora, CO 80045. The listed phone number is (720) 777-1234.

What is Liliane Diab's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Obesity Medicine, with taxonomy code 2080B0002X.

Is Liliane Diab enrolled in Medicare?

Yes. Liliane Diab is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Liliane Diab's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Liliane Diab reassigns Medicare benefits to University Physicians Incorporated (Aurora, CO). 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 Liliane Diab's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Liliane Diab accept?

Health plans from UnitedHealthcare list Liliane Diab 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 Liliane Diab was last updated on September 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 22 days 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.