DR. MEGAN LYNN MCALLISTER M.D.
NPI 1437191855
Emergency Medicine in Naperville, IL

Q: What is Megan Mcallister's NPI number?

The NPI number for Megan Mcallister is 1437191855. It was assigned to this individual provider in the NPPES registry on June 11, 2006.

Q: What is Megan Mcallister's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Q: When was this NPI record last updated?

The NPPES record for Megan Mcallister was last updated on November 25, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.

Active since June 11, 2006PECOS Enrolled

801 S WASHINGTON ST, NAPERVILLE, IL 60540(630) 527-3000 Get Directions Write a Review

NPPES record last updated: November 25, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

On this page

About Dr. Megan Lynn Mcallister M.d. NPPES

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

DR. MEGAN LYNN MCALLISTER M.D. (NPI 1437191855) is an individual emergency medicine provider in Naperville, Illinois, licensed in Illinois (036126448) and active in the NPI registry since June 2006. She is enrolled in Medicare PECOS and maintains a secondary practice location in Los Angeles.

NPPES Registry Identity

NPI1437191855

Entity TypeIndividualFemale

Primary Taxonomy207P00000X

Provider Legal NameDR. MEGAN LYNN MCALLISTERCredential: M.D.

Location Address801 S WASHINGTON STNaperville, IL 60540-7430

Mailing Address2650 Ridge Ave Ste 1223Evanston, IL 60201-1700

Phone(630) 527-3000

Sole ProprietorNo

Enumeration DateJune 11, 2006

Last NPPES UpdateNovember 25, 2025

NPPES CertifiedNovember 25, 2025

✔ NPI 1437191855 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207P00000X

Licenses✔ Licensed in IL · 036126448✔ Licensed in CA · A85608

Definition

An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.

801 S WASHINGTON ST, Naperville, IL 60540

Open in Google Maps ↗

Secondary Practice Location 1

Location 11720 E Cesar E Chavez Ave, emergency dept.Los Angeles, CA 90033-2414 · Phone (323) 268-5000

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Megan Lynn Mcallister 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.

Areas of Expertise CMS Part B claims 5

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.

Emergency department visit with high level of medical decision making 99285

An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.

216 services211 patients

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010

A routine electrocardiogram (ECG) with 12 leads is a simple, non-invasive test that records the electrical activity of your heart. It helps in identifying heart conditions by detecting irregularities in your heart rhythms. The results are interpreted and a report is provided.

180 services173 patients

Emergency department visit with moderate level of medical decision making 99284

An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.

136 services135 patients

Critical care, first 30-74 minutes 99291

Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.

16 services16 patients

Emergency department visit with low level of medical decision making 99283

An emergency department visit for a problem of moderate severity involves immediate medical attention for issues like minor fractures, burns, or high fever. The healthcare team will assess your condition, provide necessary treatment, and may suggest further tests or admission if required.

11 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60540 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 20

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

STEPHEN P BALDWIN MD

Hospitalist

801 S WASHINGTON ST, 3RD FLOOR
NAPERVILLE, IL 60540

Dupage County (630) 527-5359

DR. JEFFREY D. GIRARDOT MD

Radiology (Diagnostic Radiology)