2026 NPPES data Family Nurse Practitioner NPI 1720504756 APN
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LEANNE MILLER, APN

Family Nurse Practitioner in DOWNERS GROVE, 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 · 113 beneficiaries · Family Nurse Practitioner avg: 1K
Generic prescribing
91%
generic claims · 9% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

LEANNE MILLER, APN filed 1,473 Medicare Part D claims in 2023 as a Family Nurse Practitioner in DOWNERS GROVE, Illinois, prescribing 91% generic.

1K
Part D claims, 2023
91%
generic prescribing

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.

LEANNE MILLER, APN's Medicare Part D volume vs every U.S. prescriber

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

1,473 Top 20% higher than 80% 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%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). This entry sits in this band. 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

What does the federal data show about LEANNE MILLER, APN?

Quality data not reported

NPI registry status

Active

Issued 08/22/2017

NPI 1720504756

Primary specialty

Family Nurse Practitioner

High-volume

209,817 US NPIs in this specialty

Medicare Part D claims

1,473 21% vs specialty avg

2023 prescription claims

Specialty avg: 1,222

Specialty distribution in Illinois

How Family Nurse Practitioner compares to other specialties among Illinois providers

Illinois providers

Family Nurse Practitioner share within Illinois

1. Family Nurse Practitioner42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Family Nurse Practitioner share within Illinois

Specialty board-certification context

Estimated specialty board-certified rate — Family Nurse Practitioner (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Family Nurse Practitioner ABMS/AOA estimate

Est. board-certified rate (Family Nurse Practitioner) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Family Nurse Practitioner) — 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).

LEANNE MILLER, APN appears in the CMS NPPES registry as a Family Nurse Practitioner provider holding APN credentials at 1441 BRANDING AVE STE 200, DOWNERS GROVE, IL, 60515, with a listed phone of (630) 829-1038. NPI 1720504756 was issued on 08/22/2017. 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 1,473 prescription claims written by this provider, covering 113 Medicare beneficiaries and totaling roughly $108K in drug spend, split 9% brand-name and 91% generic by claim count, with an opioid prescribing rate of 6.0%. 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.

Family Nurse Practitioner is a high-volume specialty nationwide, with 209,817 enrolled providers across 56 states and an average of 1,222 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

1441 BRANDING AVE STE 200
DOWNERS GROVE, IL 60515

Provider Details

NPI 1720504756
Specialty Family Nurse Practitioner
Credentials APN
Gender Female
NPI Issued 08/22/2017

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 LEANNE MILLER, APN. To verify LEANNE MILLER, APN'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

LEANNE MILLER, APN — brand share 9.0%
Specialty average (est.)

9% brand-name claims vs 91% generic, on 1,473 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.

1,473
Total Claims
$108K
Total Drug Cost
113
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,771
Total Day Supply
78,565
Brand vs Generic
9% brand / 91% generic
Brand Drug Cost
$80K
Generic Drug Cost
$27K
Opioid Claims
88 (6.0% rate)
Antibiotic Claims
58

Patient Demographics

Average Patient Age
80.7 years
Avg HCC Risk Score
3.47
Gender Split
61% female / 39% male

Top Prescribed Drugs (Medicare Part D)

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

What LEANNE MILLER, APN 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
71
Furosemide
63
Atorvastatin Calcium
56
Sertraline Hcl
51
Eliquis
Apixaban
42
Levothyroxine Sodium
42
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
37
Metoprolol Succinate
37
Potassium Chloride
33
Nystatin
32

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

Family Nurse Practitioner Overview

How LEANNE MILLER, APN fits within the Family Nurse Practitioner landscape nationally.

209,817
Family Nurse Practitioner Providers in US
56
States with Family Nurse Practitioner
1,222
Avg Claims per Provider

LEANNE MILLER, APN's 1,473 claims are above the specialty average of 1,222.

Nearby Family Nurse Practitioner Providers in Illinois

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

Compare Family Nurse Practitioner nationally: see state-by-state distribution →

Frequently Asked Questions

What is LEANNE MILLER, APN's specialty?
LEANNE MILLER, APN specializes in Family Nurse Practitioner and practices in DOWNERS GROVE, Illinois. Credentials: APN.
How much does LEANNE MILLER, APN prescribe under Medicare Part D?
In 2023, LEANNE MILLER, APN wrote 1,473 Medicare Part D claims totaling $108K in drug costs for 113 beneficiaries.
Where is LEANNE MILLER, APN located?
LEANNE MILLER, APN is located at 1441 BRANDING AVE STE 200, DOWNERS GROVE, IL, 60515. Phone: (630) 829-1038.
What is LEANNE MILLER, APN's NPI number?
LEANNE MILLER, APN's National Provider Identifier (NPI) is 1720504756, issued on 08/22/2017.
Does LEANNE MILLER, APN prescribe more brand-name or generic drugs?
LEANNE MILLER, APN's prescribing is 9% brand-name and 91% generic drugs by claim count, with $80K in brand drug costs.
Does LEANNE MILLER, APN prescribe opioids?
Yes, LEANNE MILLER, APN had 88 opioid claims in 2023 with an opioid prescribing rate of 6.0%.
How many Family Nurse Practitioner providers are there in the US?
There are 209,817 Family Nurse Practitioner providers across 56 states in the US. The average Family Nurse Practitioner provider writes 1,222 Medicare Part D claims per year.
What drugs does LEANNE MILLER, APN prescribe most often?
Based on 2023 Medicare Part D data, LEANNE MILLER, APN's most frequently prescribed drugs include Gabapentin, Furosemide, Atorvastatin Calcium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does LEANNE MILLER, APN accept Medicare?
LEANNE MILLER, APN appears in CMS Medicare data with 1,473 Part D claims and 113 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify LEANNE MILLER, APN's credentials?
LEANNE MILLER, APN's NPI is 1720504756 with credentials APN. 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