2026 NPPES data Neurology Physician NPI 1104009307 M.D.
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AARON MILLER, M.D.

Neurology Physician in GENEVA, Illinois. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
1K
Medicare Part D claims · 215 beneficiaries · Neurology Physician avg: 1K
Generic prescribing
96%
generic claims · 4% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$92.11
3 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

AARON MILLER, M.D. filed 1,085 Medicare Part D claims in 2023 as a Neurology Physician in GENEVA, Illinois, prescribing 96% generic.

1K
Part D claims, 2023
96%
generic prescribing
Likely
board-certified (heuristic)

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) — no proprietary rating or editorial opinion is applied.

AARON MILLER, M.D.'s Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

1,085 Top 24% higher than 76% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). This entry sits in this band. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Medicare Part D Prescriber Public Use File · 2023

Board certification likely (heuristic — not verified)

AARON MILLER, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about AARON MILLER, M.D.?

Quality data not reported

NPI registry status

Active

Issued 12/11/2007

NPI 1104009307

Primary specialty

Neurology Physician

Mid-sized

19,866 US NPIs in this specialty

Medicare Part D claims

1,085 17% vs specialty avg

2023 prescription claims

Specialty avg: 1,309

Specialty distribution in Illinois

How Neurology Physician compares to other specialties among Illinois providers

Illinois providers

Neurology Physician share within Illinois

1. Neurology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Neurology Physician share within Illinois

Specialty board-certification context

Estimated specialty board-certified rate — Neurology Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Neurology Physician ABMS/AOA estimate

Est. board-certified rate (Neurology Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Neurology Physician) — ABMS / AOA estimate

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

AARON MILLER, M.D. appears in the CMS NPPES registry as a Neurology Physician provider holding M.D. credentials at 351 DELNOR DR STE 401, GENEVA, IL, 60134, with a listed phone of (630) 232-0610. NPI 1104009307 was issued on 12/11/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MILLER most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 1,085 prescription claims written by this provider, covering 215 Medicare beneficiaries and totaling roughly $325K in drug spend, split 4% brand-name and 96% generic by claim count, with an opioid prescribing rate of 1.0%. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Neurology Physician is a mid-sized specialty nationwide, with 19,866 enrolled providers across 54 states and an average of 1,309 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

351 DELNOR DR STE 401
GENEVA, IL 60134

Provider Details

NPI 1104009307
Specialty Neurology Physician
Credentials M.D.
Gender Male
NPI Issued 12/11/2007

Hospital and facility affiliations

Facilities where AARON MILLER, M.D. bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

NORTHWESTERN MEDICAL FACULTY FOUNDATION
GENEVA, IL

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for AARON MILLER, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$92

Largest payer

Lilly USA, LLC

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

License & disciplinary context — Illinois IDFPR 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~42K Illinois medical licensees in 2023 — they are NOT specific to AARON MILLER, M.D.. To verify AARON MILLER, M.D.'s current license status, search the IDFPR public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

106
Total board actions, Illinois 2023
Across 103 cases
2.52
Actions per 1,000 licensees
Illinois statewide rate
probation
Most common action type
38 cases

IDFPR publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Illinois disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Generic-heavy

AARON MILLER, M.D. — brand share 4.0%
Specialty average (est.)

4% brand-name claims vs 96% generic, on 1,085 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

1,085
Total Claims
$325K
Total Drug Cost
215
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,122
Total Day Supply
62,112
Brand vs Generic
4% brand / 96% generic
Brand Drug Cost
$102K
Generic Drug Cost
$223K
Opioid Claims
11 (1.0% rate)

Patient Demographics

Average Patient Age
73.1 years
Avg HCC Risk Score
1.39
Gender Split
57% female / 43% male
Age Distribution
<65: 32, 65-74: 78, 75-84: 75, 85+: 30

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What AARON MILLER, M.D. prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Gabapentin
169
Donepezil Hcl
111
Memantine Hcl
73
Carbidopa-Levodopa
Carbidopa/Levodopa
65
Primidone
52
Levetiracetam
51
Duloxetine Hcl
47
Nortriptyline Hcl
46
Pregabalin
39
Propranolol Hcl
37

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Neurology Physician Overview

How AARON MILLER, M.D. fits within the Neurology Physician landscape nationally.

19,866
Neurology Physician Providers in US
54
States with Neurology Physician
1,309
Avg Claims per Provider

AARON MILLER, M.D.'s 1,085 claims are below the specialty average of 1,309.

Nearby Neurology Physician Providers in Illinois

Other clinicians with the same primary specialty enrolled in Illinois, drawn from the same CMS NPPES roster as MILLER.

Compare Neurology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is AARON MILLER, M.D.'s specialty?
AARON MILLER, M.D. specializes in Neurology Physician and practices in GENEVA, Illinois. Credentials: M.D..
How much does AARON MILLER, M.D. prescribe under Medicare Part D?
In 2023, AARON MILLER, M.D. wrote 1,085 Medicare Part D claims totaling $325K in drug costs for 215 beneficiaries.
Where is AARON MILLER, M.D. located?
AARON MILLER, M.D. is located at 351 DELNOR DR STE 401, GENEVA, IL, 60134. Phone: (630) 232-0610.
What is AARON MILLER, M.D.'s NPI number?
AARON MILLER, M.D.'s National Provider Identifier (NPI) is 1104009307, issued on 12/11/2007.
Does AARON MILLER, M.D. prescribe more brand-name or generic drugs?
AARON MILLER, M.D.'s prescribing is 4% brand-name and 96% generic drugs by claim count, with $102K in brand drug costs.
Does AARON MILLER, M.D. prescribe opioids?
Yes, AARON MILLER, M.D. had 11 opioid claims in 2023 with an opioid prescribing rate of 1.0%.
How many Neurology Physician providers are there in the US?
There are 19,866 Neurology Physician providers across 54 states in the US. The average Neurology Physician provider writes 1,309 Medicare Part D claims per year.
What drugs does AARON MILLER, M.D. prescribe most often?
Based on 2023 Medicare Part D data, AARON MILLER, M.D.'s most frequently prescribed drugs include Gabapentin, Donepezil Hcl, Memantine Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does AARON MILLER, M.D. accept Medicare?
AARON MILLER, M.D. appears in CMS Medicare data with 1,085 Part D claims and 215 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify AARON MILLER, M.D.'s credentials?
AARON MILLER, M.D.'s NPI is 1104009307 with credentials M.D.. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology