2026 NPPES data Family Nurse Practitioner NPI 1811144629 FNP- BC
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Abby McMahon, FNP- BC

Family Nurse Practitioner in Vernon Hills, 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
2K
Medicare Part D claims · 407 beneficiaries · Family Nurse Practitioner avg: 1K
Industry payments
$4.3K
160 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

Abby McMahon, FNP- BC filed 2,430 Medicare Part D claims in 2023 as a Family Nurse Practitioner in Vernon Hills, Illinois.

2K
Part D claims, 2023
$4.3K
industry payments (Sunshine Act)

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.

Abby McMahon, FNP- BC's Medicare Part D volume vs every U.S. prescriber

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

2,430 Top 14% higher than 86% 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%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). Below this entry. 2,000–2,200: 213,991 prescribers (16%). This entry sits in this band. 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 Abby McMahon, FNP- BC?

Quality data not reported

NPI registry status

Active

Issued 08/22/2008

NPI 1811144629

Primary specialty

Family Nurse Practitioner

High-volume

209,817 US NPIs in this specialty

Medicare Part D claims

2,430 99% 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).

Abby McMahon, FNP- BC appears in the CMS NPPES registry as a Family Nurse Practitioner provider holding FNP- BC credentials at 565 LAKEVIEW PKWY STE 116, Vernon Hills, IL, 60061, with a listed phone of (847) 367-7340. NPI 1811144629 was issued on 08/22/2008. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what McMahon 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 2,430 prescription claims written by this provider, covering 407 Medicare beneficiaries and totaling roughly $287K in drug spend, with an opioid prescribing rate of 3.4%. 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

565 LAKEVIEW PKWY STE 116
Vernon Hills, IL 60061

Provider Details

NPI 1811144629
Specialty Family Nurse Practitioner
Credentials FNP- BC
Gender Female
NPI Issued 08/22/2008

Hospital and facility affiliations

Facilities where Abby McMahon, FNP- BC 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.

Deerbrook Medical Associates
Libertyville, IL
Evocare Wound Solutions PA
Chicago, 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 Abby McMahon, FNP- BC. Source: openpaymentsdata.cms.gov.

Total received

$4.3K

Largest payer

Organogenesis Inc.

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 Abby McMahon, FNP- BC. To verify Abby McMahon, FNP- BC'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.

Medicare Part D Prescribing Data

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

2,430
Total Claims
$287K
Total Drug Cost
407
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
5,784
Total Day Supply
168,919
Generic Drug Cost
$56K
Opioid Claims
83 (3.4% rate)
Antibiotic Claims
109

Patient Demographics

Average Patient Age
71.8 years
Avg HCC Risk Score
1.22
Gender Split
63% female / 37% male
Age Distribution
<65: 53, 65-74: 205, 75-84: 117, 85+: 32

Top Prescribed Drugs (Medicare Part D)

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

What Abby McMahon, FNP- BC 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
Atorvastatin Calcium
128
Levothyroxine Sodium
90
Alendronate Sodium
64
Pravastatin Sodium
62
Lisinopril
58
Amlodipine Besylate
54
Hydrochlorothiazide
52
Hydroxychloroquine Sulfate
51
Omeprazole
49
Rosuvastatin Calcium
48

* 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 Abby McMahon, FNP- BC 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

Abby McMahon, FNP- BC's 2,430 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 McMahon.

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

Before you book an appointment

Use this federal record as your verification checklist, not as a recommendation.

  • Confirm the NPI record is current in the official CMS registry — providers update their own NPPES details, and moves can lag. Verify this NPI
  • Check the active license and any disciplinary history with the Illinois medical board — federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Family Nurse Practitioner peer on Medicare volume and prescribing patterns. Compare providers

Medicare Part D and MIPS figures describe practice patterns in federal programs only — they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.

Frequently Asked Questions

What is Abby McMahon, FNP- BC's specialty?
Abby McMahon, FNP- BC specializes in Family Nurse Practitioner and practices in Vernon Hills, Illinois. Credentials: FNP- BC.
How much does Abby McMahon, FNP- BC prescribe under Medicare Part D?
In 2023, Abby McMahon, FNP- BC wrote 2,430 Medicare Part D claims totaling $287K in drug costs for 407 beneficiaries.
Where is Abby McMahon, FNP- BC located?
Abby McMahon, FNP- BC is located at 565 LAKEVIEW PKWY STE 116, Vernon Hills, IL, 60061. Phone: (847) 367-7340.
What is Abby McMahon, FNP- BC's NPI number?
Abby McMahon, FNP- BC's National Provider Identifier (NPI) is 1811144629, issued on 08/22/2008.
Does Abby McMahon, FNP- BC prescribe opioids?
Yes, Abby McMahon, FNP- BC had 83 opioid claims in 2023 with an opioid prescribing rate of 3.4%.
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 Abby McMahon, FNP- BC prescribe most often?
Based on 2023 Medicare Part D data, Abby McMahon, FNP- BC's most frequently prescribed drugs include Atorvastatin Calcium, Levothyroxine Sodium, Alendronate Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Abby McMahon, FNP- BC accept Medicare?
Abby McMahon, FNP- BC appears in CMS Medicare data with 2,430 Part D claims and 407 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Abby McMahon, FNP- BC's credentials?
Abby McMahon, FNP- BC's NPI is 1811144629 with credentials FNP- BC. 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