2026 NPPES data Family Medicine Physician NPI 1518917939 M.D.
Verify on CMS →

CATHERINE MCGINNESS, M.D.

Family Medicine Physician in OAK PARK, 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
10K
Medicare Part D claims · 681 beneficiaries · Family Medicine Physician avg: 3K
Generic prescribing
86%
generic claims · 14% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

CATHERINE MCGINNESS, M.D. filed 10,494 Medicare Part D claims in 2023 as a Family Medicine Physician in OAK PARK, Illinois, prescribing 86% generic.

10K
Part D claims, 2023
86%
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.

CATHERINE MCGINNESS, M.D.'s Medicare Part D volume vs every U.S. prescriber

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

10,494 Top 2% higher than 98% 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

Board certification likely (heuristic — not verified)

CATHERINE MCGINNESS, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 3 hospital affiliations — 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 CATHERINE MCGINNESS, M.D.?

Quality data not reported

NPI registry status

Active

Issued 05/10/2006

NPI 1518917939

Primary specialty

Family Medicine Physician

High-volume

147,640 US NPIs in this specialty

Medicare Part D claims

10,494 207% vs specialty avg

2023 prescription claims

Specialty avg: 3,418

Specialty distribution in Illinois

How Family Medicine Physician compares to other specialties among Illinois providers

Illinois providers

Family Medicine Physician share within Illinois

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

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Family Medicine 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).

CATHERINE MCGINNESS, M.D. appears in the CMS NPPES registry as a Family Medicine Physician provider holding M.D. credentials at 610 S MAPLE AVE, OAK PARK, IL, 60304, with a listed phone of (708) 524-1674. NPI 1518917939 was issued on 05/10/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MCGINNESS 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 10,494 prescription claims written by this provider, covering 681 Medicare beneficiaries and totaling roughly $1.5 million in drug spend, split 14% brand-name and 86% generic by claim count, with an opioid prescribing rate of 4.8%. 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 Medicine Physician is a high-volume specialty nationwide, with 147,640 enrolled providers across 56 states and an average of 3,418 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

610 S MAPLE AVE
OAK PARK, IL 60304

Provider Details

NPI 1518917939
Specialty Family Medicine Physician
Credentials M.D.
Gender Female
NPI Issued 05/10/2006

Hospital and facility affiliations

Facilities where CATHERINE MCGINNESS, 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.

CHESTERTON PHYSICAL THERAPY INC
CHESTERTON, IN
RUSH OAK PARK PHYSICIANS GROUP ANCHOR
OAK PARK, IL
RUSH UNIVERSITY MEDICAL GROUP
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).

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 CATHERINE MCGINNESS, M.D.. To verify CATHERINE MCGINNESS, 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 · Typical

CATHERINE MCGINNESS, M.D. — brand share 14.0%
Specialty average (est.)

14% brand-name claims vs 86% generic, on 10,494 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.

10,494
Total Claims
$1.5M
Total Drug Cost
681
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
23,556
Total Day Supply
678,728
Brand vs Generic
14% brand / 86% generic
Brand Drug Cost
$1.2M
Generic Drug Cost
$259K
Opioid Claims
504 (4.8% rate)
Antibiotic Claims
351

Patient Demographics

Average Patient Age
72.7 years
Avg HCC Risk Score
1.42
Gender Split
80% female / 20% male
Age Distribution
<65: 78, 65-74: 323, 75-84: 226, 85+: 54

Top Prescribed Drugs (Medicare Part D)

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

What CATHERINE MCGINNESS, 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
Amlodipine Besylate
533
Atorvastatin Calcium
411
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
313
Metoprolol Succinate
300
Losartan Potassium
279
Montelukast Sodium
272
Hydrochlorothiazide
270
Gabapentin
259
Rosuvastatin Calcium
235
Metformin Hcl
227

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

Family Medicine Physician Overview

How CATHERINE MCGINNESS, M.D. fits within the Family Medicine Physician landscape nationally.

147,640
Family Medicine Physician Providers in US
56
States with Family Medicine Physician
3,418
Avg Claims per Provider

CATHERINE MCGINNESS, M.D.'s 10,494 claims are above the specialty average of 3,418.

Nearby Family Medicine Physician Providers in Illinois

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

Compare Family Medicine Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is CATHERINE MCGINNESS, M.D.'s specialty?
CATHERINE MCGINNESS, M.D. specializes in Family Medicine Physician and practices in OAK PARK, Illinois. Credentials: M.D..
How much does CATHERINE MCGINNESS, M.D. prescribe under Medicare Part D?
In 2023, CATHERINE MCGINNESS, M.D. wrote 10,494 Medicare Part D claims totaling $1.5M in drug costs for 681 beneficiaries.
Where is CATHERINE MCGINNESS, M.D. located?
CATHERINE MCGINNESS, M.D. is located at 610 S MAPLE AVE, OAK PARK, IL, 60304. Phone: (708) 524-1674.
What is CATHERINE MCGINNESS, M.D.'s NPI number?
CATHERINE MCGINNESS, M.D.'s National Provider Identifier (NPI) is 1518917939, issued on 05/10/2006.
Does CATHERINE MCGINNESS, M.D. prescribe more brand-name or generic drugs?
CATHERINE MCGINNESS, M.D.'s prescribing is 14% brand-name and 86% generic drugs by claim count, with $1.2M in brand drug costs.
Does CATHERINE MCGINNESS, M.D. prescribe opioids?
Yes, CATHERINE MCGINNESS, M.D. had 504 opioid claims in 2023 with an opioid prescribing rate of 4.8%.
How many Family Medicine Physician providers are there in the US?
There are 147,640 Family Medicine Physician providers across 56 states in the US. The average Family Medicine Physician provider writes 3,418 Medicare Part D claims per year.
What drugs does CATHERINE MCGINNESS, M.D. prescribe most often?
Based on 2023 Medicare Part D data, CATHERINE MCGINNESS, M.D.'s most frequently prescribed drugs include Amlodipine Besylate, Atorvastatin Calcium, Hydrocodone-Acetaminophen. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does CATHERINE MCGINNESS, M.D. accept Medicare?
CATHERINE MCGINNESS, M.D. appears in CMS Medicare data with 10,494 Part D claims and 681 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify CATHERINE MCGINNESS, M.D.'s credentials?
CATHERINE MCGINNESS, M.D.'s NPI is 1518917939 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