DR. LILIAN A ALLEN PH. D, DNP
NPI 1235851890
Nurse Practitioner in Country Club Hills, IL

Q: What is Lilian Allen's NPI number?

The NPI number for Lilian Allen is 1235851890. It was assigned to this individual provider in the NPPES registry on September 12, 2022.

Q: What is Lilian Allen's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Q: When was this NPI record last updated?

The NPPES record for Lilian Allen was last updated on September 12, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.

Active since September 12, 2022PECOS Enrolled

18409 DARTRY DR, COUNTRY CLUB HILLS, IL 60478(773) 803-3288 Get Directions Write a Review

NPPES record last updated: September 12, 2022. Verified against the NPPES registry weekly; last sync: October 18, 2026.

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About Dr. Lilian A Allen Ph. D, Dnp NPPES

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

DR. LILIAN A ALLEN PH. D, DNP (NPI 1235851890) is an individual nurse practitioner in Country Club Hills, Illinois, licensed in California (95022467) and active in the NPI registry since September 2022. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1235851890

Entity TypeIndividualFemale

Primary Taxonomy363L00000X

Provider Legal NameDR. LILIAN A ALLENCredential: PH. D, DNP

Location Address18409 DARTRY DRCountry Club Hills, IL 60478-5295

Mailing Address18409 Dartry DrCountry Club Hills, IL 60478-5295 · (773) 803-3288

Phone(773) 803-3288

Sole ProprietorNo

Enumeration DateSeptember 12, 2022

NPPES CertifiedSeptember 12, 2022

✔ NPI 1235851890 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363L00000X

Licenses✔ Licensed in CA · 95022467✔ Licensed in IL · 209025925

Definition

(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.

18409 DARTRY DR, Country Club Hills, IL 60478

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include CareSource, CareSource (Common Ground Healthcare).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. Lilian A Allen Ph. D, Dnp 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

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

Signify Health Medical Associates, PLLC

778 mi

General Practice

4055 VALLEY VIEW LN STE 700
Dallas, TX 75244

Reassigned Medicare billing, Illinois enrollment
712 clinicians in this Medicare group

NPI 1750845863 (972) 715-3800

Signify Health Medical Associates Of California, PC

1,854 mi

General Practice

505 MONTGOMERY ST, FL 10 & 11
San Francisco, CA 94111

Reassigned Medicare billing, California enrollment
407 clinicians in this Medicare group

NPI 1124685169 (972) 715-3800

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

Areas of Expertise CMS Part B claims

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

14 services14 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60478 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$94.06 typical visit price

range $60.08 – $183.39

Typical copayment $23.51 (range $15.02 – $45.84)

Most-billed visit code 99203

Established Patient

$105.70 typical visit price

range $18.97 – $148.12

Typical copayment $26.42 (range $4.74 – $37.03)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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 Lilian Allen's NPI number?

The NPI number for Lilian Allen is 1235851890. It was assigned to this individual provider in the NPPES registry on September 12, 2022.

Where is Lilian Allen located?

Lilian Allen practices at 18409 Dartry Dr, Country Club Hills, IL 60478. The listed phone number is (773) 803-3288.

What is Lilian Allen's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Is Lilian Allen enrolled in Medicare?

Yes. Lilian Allen is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Lilian Allen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Lilian Allen reassigns Medicare benefits to 2 organizations: Signify Health Medical Associates, PLLC (Dallas, TX) and Signify Health Medical Associates Of California, PC (San Francisco, CA). 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 Lilian Allen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Lilian Allen accept?

Health plans from CareSource and CareSource (Common Ground Healthcare) list Lilian Allen 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 Lilian Allen was last updated on September 12, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.