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DR. CONCEPCION ESTEBAN SANTILLAN MD
NPI 1083647408
Psychiatry & Neurology - Neurology in Belleville, IL

Active since July 09, 2006PECOS EnrolledAccepts Medicare Assignment
4500 MEMORIAL DR STE 400, BELLEVILLE, IL 62226(618) 233-3066(314) 996-7658 Get Directions Write a Review

NPPES record last updated: September 30, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Nov 4, 2024, Sep 19, 2024, Apr 12, 2024 and 2 more (5 updates tracked since 2022).

About Dr. Concepcion Esteban Santillan Md NPPES

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

DR. CONCEPCION ESTEBAN SANTILLAN MD (NPI 1083647408) is an individual neurology provider in Belleville, Illinois, licensed in Georgia (101659) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS, is affiliated with Northside Hospital Duluth, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1083647408
Entity TypeIndividualFemale
Primary Taxonomy2084N0400X
Provider Legal NameDR. CONCEPCION ESTEBAN SANTILLANCredential: MD
Location Address4500 MEMORIAL DR STE 400Belleville, IL 62226-5360
Mailing Address2201 Henderson Mill Rd Ne Ste 160Atlanta, GA 30345-2711
Phone(618) 233-3066
Fax(314) 996-7658
Sole ProprietorYes
Medical School CMSOtherGraduated 1985
Enumeration DateJuly 9, 2006
Last NPPES UpdateSeptember 30, 20255 updates tracked since enumeration
NPPES CertifiedSeptember 30, 2025
✔ NPI 1083647408 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · NeurologyAllopathic & Osteopathic Physicians
Taxonomy Code2084N0400X
Licenses✔ Licensed in GA · 101659✔ Licensed in IL · 036151944✔ Licensed in WI · 47916✔ Licensed in CA · C171642
Definition
A Neurologist specializes in the diagnosis and treatment of diseases or impaired function of the brain, spinal cord, peripheral nerves, muscles, autonomic nervous system, and blood vessels that relate to these structures.
4500 MEMORIAL DR STE 400, Belleville, IL 62226
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Other Names 1

Former Name (1)Concepcion G Esteban Md

Secondary Practice Locations 2

Location 11000 Johnson Ferry RdAtlanta, GA 30342-1606 · Phone (404) 851-8000 · Fax (404) 303-3759
Location 28201 E Riverside BlvdRockford, IL 61114-2300 · Phone (815) 971-7000

Other Identifiers 2

Medicaid34626300WI
Medicaid32837700WI

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Concepcion Esteban Santillan Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID2567402100
PECOS Enrollment IDI20250204001869
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 3

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.

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
26 services26 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
20 services16 patients
Measurement of brain wave activity (eeg), awake and drowsy 95816
Measurement of brain wave activity, also known as an EEG, is a non-invasive test that records electrical patterns in your brain. This procedure is done when you're awake and drowsy to understand how your brain functions during different states of consciousness.
15 services15 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Northside Hospital Duluth

Acute Care Hospitals · Duluth, GA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number110252
Location3620 Howell Ferry RoadDuluth, GA 30096 · Gwinnett County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 62226 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
$131.14 typical visit price
range $56.28 – $173.35
Typical copayment $32.78 (range $14.07 – $43.33)
Most-billed visit code 99204
Established Patient
$99.71 typical visit price
range $17.51 – $139.99
Typical copayment $24.92 (range $4.37 – $34.99)
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 Concepcion Santillan's NPI number?

The NPI number for Concepcion Santillan is 1083647408. It was assigned to this individual provider in the NPPES registry on July 9, 2006. The provider is also known as Concepcion G Esteban MD.

Where is Concepcion Santillan located?

Concepcion Santillan practices at 4500 Memorial Dr Ste 400, Belleville, IL 62226. The listed phone number is (618) 233-3066.

What is Concepcion Santillan's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology, with taxonomy code 2084N0400X.

Is Concepcion Santillan enrolled in Medicare?

Yes. Concepcion Santillan is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Is Concepcion Santillan affiliated with any hospitals?

According to CMS data, Concepcion Santillan is affiliated with Northside Hospital Duluth.

When was this NPI record last updated?

The NPPES record for Concepcion Santillan was last updated on September 30, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.