2026 NPPES data Registered Nurse NPI 1669465480 RN, APN
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MAUREEN MCCAFFERTY, RN, APN

Registered Nurse in OAK LAWN, 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
956
Medicare Part D claims · 273 beneficiaries · Registered Nurse avg: 1K
Generic prescribing
85%
generic claims · 15% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

MAUREEN MCCAFFERTY, RN, APN filed 956 Medicare Part D claims in 2023 as a Registered Nurse in OAK LAWN, Illinois, prescribing 85% generic.

956
Part D claims, 2023
85%
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.

MAUREEN MCCAFFERTY, RN, APN's Medicare Part D volume vs every U.S. prescriber

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

956 Top 25% higher than 75% 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%). This entry sits in this band. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 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

What does the federal data show about MAUREEN MCCAFFERTY, RN, APN?

Quality data not reported

NPI registry status

Active

Issued 08/26/2005

NPI 1669465480

Primary specialty

Registered Nurse

High-volume

175,652 US NPIs in this specialty

Medicare Part D claims

956 4% vs specialty avg

2023 prescription claims

Specialty avg: 1,000

Specialty distribution in Illinois

How Registered Nurse compares to other specialties among Illinois providers

Illinois providers

Registered Nurse share within Illinois

1. Registered Nurse42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Registered Nurse share within Illinois

Specialty board-certification context

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

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

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

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

MAUREEN MCCAFFERTY, RN, APN appears in the CMS NPPES registry as a Registered Nurse provider holding RN, APN credentials at 4950 W 95TH ST, OAK LAWN, IL, 60453, with a listed phone of (708) 576-8150. NPI 1669465480 was issued on 08/26/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MCCAFFERTY 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 956 prescription claims written by this provider, covering 273 Medicare beneficiaries and totaling roughly $164K in drug spend, split 15% brand-name and 85% generic by claim count. 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.

Registered Nurse is a high-volume specialty nationwide, with 175,652 enrolled providers across 56 states and an average of 1,000 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

4950 W 95TH ST
OAK LAWN, IL 60453

Provider Details

NPI 1669465480
Specialty Registered Nurse
Credentials RN, APN
Gender Female
NPI Issued 08/26/2005

Hospital and facility affiliations

Facilities where MAUREEN MCCAFFERTY, RN, APN 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.

CARDIOVASCULAR CARE CONSULTANTS S.C.
ORLAND PARK, 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).

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 MAUREEN MCCAFFERTY, RN, APN. To verify MAUREEN MCCAFFERTY, RN, 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 · Typical

MAUREEN MCCAFFERTY, RN, APN — brand share 15.0%
Specialty average (est.)

15% brand-name claims vs 85% generic, on 956 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.

956
Total Claims
$164K
Total Drug Cost
273
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,448
Total Day Supply
72,358
Brand vs Generic
15% brand / 85% generic
Brand Drug Cost
$142K
Generic Drug Cost
$22K
Antibiotic Claims
18

Patient Demographics

Average Patient Age
75.6 years
Avg HCC Risk Score
1.77
Gender Split
51% female / 49% male

Top Prescribed Drugs (Medicare Part D)

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

What MAUREEN MCCAFFERTY, RN, 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
Metoprolol Succinate
115
Eliquis
Apixaban
113
Atorvastatin Calcium
78
Amlodipine Besylate
72
Clopidogrel
Clopidogrel Bisulfate
54
Potassium Chloride
49
Metoprolol Tartrate
48
Furosemide
33
Rosuvastatin Calcium
26
Isosorbide Mononitrate Er
Isosorbide Mononitrate
24

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

Registered Nurse Overview

How MAUREEN MCCAFFERTY, RN, APN fits within the Registered Nurse landscape nationally.

175,652
Registered Nurse Providers in US
56
States with Registered Nurse
1,000
Avg Claims per Provider

MAUREEN MCCAFFERTY, RN, APN's 956 claims are below the specialty average of 1,000.

Nearby Registered Nurse Providers in Illinois

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

Compare Registered Nurse nationally: see state-by-state distribution →

Frequently Asked Questions

What is MAUREEN MCCAFFERTY, RN, APN's specialty?
MAUREEN MCCAFFERTY, RN, APN specializes in Registered Nurse and practices in OAK LAWN, Illinois. Credentials: RN, APN.
How much does MAUREEN MCCAFFERTY, RN, APN prescribe under Medicare Part D?
In 2023, MAUREEN MCCAFFERTY, RN, APN wrote 956 Medicare Part D claims totaling $164K in drug costs for 273 beneficiaries.
Where is MAUREEN MCCAFFERTY, RN, APN located?
MAUREEN MCCAFFERTY, RN, APN is located at 4950 W 95TH ST, OAK LAWN, IL, 60453. Phone: (708) 576-8150.
What is MAUREEN MCCAFFERTY, RN, APN's NPI number?
MAUREEN MCCAFFERTY, RN, APN's National Provider Identifier (NPI) is 1669465480, issued on 08/26/2005.
Does MAUREEN MCCAFFERTY, RN, APN prescribe more brand-name or generic drugs?
MAUREEN MCCAFFERTY, RN, APN's prescribing is 15% brand-name and 85% generic drugs by claim count, with $142K in brand drug costs.
How many Registered Nurse providers are there in the US?
There are 175,652 Registered Nurse providers across 56 states in the US. The average Registered Nurse provider writes 1,000 Medicare Part D claims per year.
What drugs does MAUREEN MCCAFFERTY, RN, APN prescribe most often?
Based on 2023 Medicare Part D data, MAUREEN MCCAFFERTY, RN, APN's most frequently prescribed drugs include Metoprolol Succinate, Eliquis, Atorvastatin Calcium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MAUREEN MCCAFFERTY, RN, APN accept Medicare?
MAUREEN MCCAFFERTY, RN, APN appears in CMS Medicare data with 956 Part D claims and 273 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MAUREEN MCCAFFERTY, RN, APN's credentials?
MAUREEN MCCAFFERTY, RN, APN's NPI is 1669465480 with credentials RN, 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