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CALLAN MARCUS APN
NPI 1144692021
Nurse Practitioner in Naperville, IL

Active since October 30, 2015PECOS Enrolled
2007 95TH ST, SUITE B, NAPERVILLE, IL 60564(630) 646-6593 Get Directions Write a Review

NPPES record last updated: November 22, 2019. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Nov 22, 2019, May 17, 2017 (2 updates tracked since 2017).

About Callan Marcus Apn NPPES

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

CALLAN MARCUS APN (NPI 1144692021) is an individual nurse practitioner in Naperville, Illinois, licensed in Colorado (APN.0993388-NP) and active in the NPI registry since October 2015. She is enrolled in Medicare PECOS and maintains a secondary practice location in Denver.

NPPES Registry Identity

NPI1144692021
Entity TypeIndividualFemale
Primary Taxonomy363L00000X
Provider Legal NameCALLAN MARCUSCredential: APN
Location Address2007 95TH ST, SUITE BNaperville, IL 60564-8459
Mailing Address1449 N Ashland Ave, Apt 3rChicago, IL 60622-2269 · (913) 481-4201
Phone(630) 646-6593
Sole ProprietorNo
Enumeration DateOctober 30, 2015
Last NPPES UpdateNovember 22, 20192 updates tracked since enumeration
✔ NPI 1144692021 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363L00000X
License✔ Licensed in CO · APN.0993388-NP
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.
Also ListedNurse Practitioner · FamilyTaxonomy 363LF0000X · License 209013352 (IL)
2007 95TH ST, Naperville, IL 60564
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Secondary Practice Location 1

Location 13455 Ringsby Ct Ste 102Denver, CO 80216-4923 · Phone (303) 500-1518 · Fax (720) 598-0440

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Callan Marcus Apn 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 Callan Marcus reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

True North Health Navigation LLC
889 mi
Emergency Medicine
3825 N LAFAYETTE ST
Denver, CO 80205
  • Reassigned Medicare billing, Colorado enrollment
  • 151 clinicians in this Medicare group
NPI 1740622133 (303) 500-1518

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60564 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
$93.02 typical visit price
range $59.81 – $181.38
Typical copayment $23.25 (range $14.95 – $45.34)
Most-billed visit code 99203
Established Patient
$105.07 typical visit price
range $19.15 – $147.12
Typical copayment $26.26 (range $4.78 – $36.78)
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.

Other Providers at the Same Location NPPES 15

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

DR. PAYAL J PARIKH MD
Family Medicine
2007 95TH ST
NAPERVILLE, IL 60564
Will County (630) 646-6920
MARIA M DAI P.A.
Physician Assistant
2007 95TH ST
NAPERVILLE, IL 60564
Will County (630) 646-6953
EDWARD HOSPITAL IMAGING CENTER BOOK RD
Clinic/Center (Radiology)
2007 95TH ST
NAPERVILLE, IL 60564
Will County (630) 527-3200
JOSEPH A GIORDANO DO
Family Medicine
2007 95TH ST, STE 105
NAPERVILLE, IL 60564
Will County (630) 646-6920
BROOKE DIVINE SCHERER MD
Pediatrics
2007 95TH ST, LL - A CHILDRENS HEALTH PARTNERS, SC
NAPERVILLE, IL 60564
Will County (630) 848-1700
CHRISTINE COLLINS TAYLOR APN-CNP
Nurse Practitioner
2007 95TH ST, SUITE B
NAPERVILLE, IL 60564
Will County (630) 646-6953
MICHELLE LYNN PIERCE MD
Pediatrics
2007 95TH ST, LL A CHILDRENS HEALTH PARTNERS SC
NAPERVILLE, IL 60564
Will County (630) 848-1700
DR. ARISTIDIS HATZIDIMITRIADIS MD
Internal Medicine
2007 95TH ST, STE 112
NAPERVILLE, IL 60564
Will County (630) 527-7780

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 Callan Marcus's NPI number?

The NPI number for Callan Marcus is 1144692021. It was assigned to this individual provider in the NPPES registry on October 30, 2015.

Where is Callan Marcus located?

Callan Marcus practices at 2007 95th St Suite B, Naperville, IL 60564. The listed phone number is (630) 646-6593.

What is Callan Marcus's specialty?

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

Is Callan Marcus enrolled in Medicare?

Yes. Callan Marcus is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Callan Marcus's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Callan Marcus reassigns Medicare benefits to True North Health Navigation LLC (Denver, 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 Callan Marcus'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 Callan Marcus was last updated on November 22, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.