AARON MICHAEL MILLER M.D.
NPI 1104009307
Psychiatry & Neurology - Neurology in Geneva, IL

Q: What is Aaron Miller's NPI number?

The NPI number for Aaron Miller is 1104009307. It was assigned to this individual provider in the NPPES registry on December 11, 2007.

Q: What is Aaron Miller's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Aaron Miller was last updated on March 22, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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 December 11, 2007PECOS EnrolledAccepts Medicare Assignment

351 DELNOR DR STE 401, GENEVA, IL 60134(630) 232-0610(630) 232-0675 Get Directions Write a Review

NPPES record last updated: March 22, 2021. Verified against the NPPES registry weekly; last sync: November 01, 2026.

On this page

About Aaron Michael Miller M.d. NPPES

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

AARON MICHAEL MILLER M.D. (NPI 1104009307) is an individual neurology provider in Geneva, Illinois, licensed in Illinois (036.131190) and active in the NPI registry since December 2007. He is enrolled in Medicare PECOS, is affiliated with Northwestern Medicine Delnor Community Hospital, and is a graduate of University Of Illinois College Of Med (chi/peor/rock/chm-urb) (2004).

NPPES Registry Identity

NPI1104009307

Entity TypeIndividualMale

Primary Taxonomy2084N0400X

Provider Legal NameAARON MICHAEL MILLERCredential: M.D.

Location Address351 DELNOR DR STE 401Geneva, IL 60134-4235

Mailing Address351 Delnor Dr Ste 401Geneva, IL 60134-4235 · (630) 232-0610 · Fax (630) 232-0675

Phone(630) 232-0610

Fax(630) 232-0675

Sole ProprietorNo

Medical School CMSUniversity Of Illinois College Of Med (chi/peor/rock/chm-urb)Graduated 2004

Enumeration DateDecember 11, 2007

Last NPPES UpdateMarch 22, 2021

NPPES CertifiedMarch 22, 2021

✔ NPI 1104009307 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · NeurologyAllopathic & Osteopathic Physicians

Taxonomy Code2084N0400X

License✔ Licensed in IL · 036.131190

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.

351 DELNOR DR STE 401, Geneva, IL 60134

Open in Google Maps ↗

Other Identifiers 2

Medicaid1507036TN

Medicaid7100060000KY

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Aaron Michael Miller M.d. 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 ID5496826026

PECOS Enrollment IDI20130213000590

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 Aaron Miller reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Northwestern Medical Faculty Foundation

11 mi

Multi-Specialty

DEPT 5777
Carol Stream, IL 60122

Reassigned Medicare billing, Illinois enrollment
4,817 clinicians in this Medicare group

NPI 1346235314 (855) 694-2866

Central Dupage Physician Group

12 mi

Family Medicine

5777 DEPARTMENT
Carol Stream, IL 60122

Reassigned Medicare billing, Illinois enrollment
1,664 clinicians in this Medicare group

NPI 1033149844 (630) 933-3300

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 15

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.

125 services96 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

111 services97 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.

95 services57 patients

Needle measurement of electrical activity in arm or leg muscles, complete study 95886

This procedure, known as an electromyography (EMG), involves inserting a small needle into your arm or leg muscles to measure their electrical activity. This complete study helps diagnose issues with nerves or muscles, providing valuable data for your treatment plan.

90 services45 patients

Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231

Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.

81 services61 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

55 services55 patients

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

48 services45 patients

Measurement of brain wave activity (eeg), awake and asleep 95819

The measurement of brain wave activity, known as an EEG, records the brain's electrical signals. It's performed when you're awake and asleep to monitor your brain's functioning. It helps in diagnosing conditions like epilepsy, sleep disorders, and other neurological issues.

42 services38 patients

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.

38 services38 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

37 services37 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.

29 services27 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 services12 patients

Nerve conduction, 7-8 studies 95910

Nerve conduction studies involve testing the speed and strength of signals traveling through your nerves. This helps doctors identify nerve damage. In a 7-8 study procedure, 7-8 specific nerves are tested. You may feel a mild, brief tingling or shock during the test.

15 services15 patients

Nerve conduction, 5-6 studies 95909

Nerve conduction studies involve testing the speed and strength of signals traveling through your nerves. This helps identify any nerve damage or dysfunction. For 5-6 studies, this means multiple nerves will be tested. Small electrodes are placed on your skin to send and receive signals, causing minimal discomfort.

13 services13 patients

Nerve conduction, 9-10 studies 95911

Nerve conduction studies involve sending small electrical shocks through the skin to measure how quickly nerves transmit signals. This helps detect nerve damage. 9-10 studies mean this process will be repeated on different nerves to gather comprehensive data.

12 services12 patients

Hospital Affiliations CMS Care Compare 3

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

Northwestern Medicine Delnor Community Hospital

Acute Care Hospitals · Geneva, IL

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number140211

Location300 Randall RdGeneva, IL 60134 · Kane County

Emergency services Birthing friendly

Northwestern Medicine Central Dupage Hospital

Acute Care Hospitals · Winfield, IL

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number140242

Location25 North Winfield RoadWinfield, IL 60190 · Du Page County

Emergency services Birthing friendly

Northwestern Medicine Kishwaukee Hospital

Acute Care Hospitals · Dekalb, IL

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number140286

LocationOne Kish Hospital DriveDekalb, IL 60115 · De Kalb County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60134 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

$137.43 typical visit price

range $59.81 – $181.38

Typical copayment $34.35 (range $14.95 – $45.34)

Most-billed visit code 99204

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 4

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

JOELLE MARIE TOLENTINO APRN, CNP

Nurse Practitioner

351 DELNOR DR STE 401
GENEVA, IL 60134

Kane County (630) 933-4056

DR. TIMOTHY CRAIG WIRT DPM

Podiatrist (Foot & Ankle Surgery)

351 DELNOR DR STE 401
GENEVA, IL 60134

Kane County (630) 933-4056

DR. ANJANA NAIR M.D

Psychiatry & Neurology (Sleep Medicine)

351 DELNOR DR STE 401
GENEVA, IL 60134

Kane County (630) 933-4056

REBECCA J MCLAUGHLIN APRN, CNP

Nurse Practitioner

351 DELNOR DR STE 401
GENEVA, IL 60134

Kane County (630) 933-4056

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 Aaron Miller's NPI number?

The NPI number for Aaron Miller is 1104009307. It was assigned to this individual provider in the NPPES registry on December 11, 2007.

Where is Aaron Miller located?

Aaron Miller practices at 351 Delnor Dr Ste 401, Geneva, IL 60134. The listed phone number is (630) 232-0610.

What is Aaron Miller's specialty?

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

Is Aaron Miller enrolled in Medicare?

Yes. Aaron Miller 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.

Which organizations bill Medicare for Aaron Miller's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Aaron Miller reassigns Medicare benefits to 2 organizations: Northwestern Medical Faculty Foundation (Carol Stream, IL) and Central Dupage Physician Group (Carol Stream, IL). 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 Aaron Miller's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Aaron Miller affiliated with any hospitals?

According to CMS data, Aaron Miller is affiliated with Northwestern Medicine Delnor Community Hospital, Northwestern Medicine Central Dupage Hospital and Northwestern Medicine Kishwaukee Hospital.

When was this NPI record last updated?

The NPPES record for Aaron Miller was last updated on March 22, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.