2026 NPPES data Medical Physician Assistant NPI 1003211160 PA-C
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JENNIFER BREN, PA-C

Medical Physician Assistant in NAPERVILLE, 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
730
Medicare Part D claims · 218 beneficiaries · Medical Physician Assistant avg: 1K
Generic prescribing
96%
generic claims · 4% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$957.67
22 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: JENNIFER BREN, PA-C is a Medical Physician Assistant ([object Object]) practicing in NAPERVILLE, Illinois with a Medicare Part D prescribing footprint of 730 claims across 218 beneficiaries — 4% brand-name prescribing . Industry payments of $957.67 across 22 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: JENNIFER BREN, PA-C filed 730 Medicare Part D claims in 2023 across NAPERVILLE, Illinois. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

JENNIFER BREN, PA-C at a glance

Quality data not reported

NPI registry status

Active

Issued 10/30/2014

NPI 1003211160

Primary specialty

Medical Physician Assistant

Mid-sized

40,527 US NPIs in this specialty

Medicare Part D claims

730 32% vs specialty avg

2023 prescription claims

Specialty avg: 1,077

Specialty distribution in Illinois

How Medical Physician Assistant compares to other specialties among Illinois providers

Illinois providers

Medical Physician Assistant share within Illinois

1. Medical Physician Assistant42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Medical Physician Assistant share within Illinois

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Medical Physician Assistant) — 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).

JENNIFER BREN, PA-C is a Medical Physician Assistant provider practicing in NAPERVILLE, Illinois, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: PA-C. NPI: 1003211160. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

JENNIFER BREN, PA-C appears in the CMS NPPES registry as a Medical Physician Assistant provider holding PA-C credentials at 2940 ROLLINGRIDGE RD, NAPERVILLE, IL, 60564, with a listed phone of (630) 967-6000. NPI 1003211160 was issued on 10/30/2014. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BREN 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 730 prescription claims written by this provider, covering 218 Medicare beneficiaries and totaling roughly $32K in drug spend, split 4% brand-name and 96% generic by claim count, with an opioid prescribing rate of 67.3%. 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.

Medical Physician Assistant is a mid-sized specialty nationwide, with 40,527 enrolled providers across 55 states and an average of 1,077 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

2940 ROLLINGRIDGE RD
NAPERVILLE, IL 60564

Provider Details

NPI 1003211160
Specialty Medical Physician Assistant
Credentials PA-C
Gender Female
NPI Issued 10/30/2014

Hospital and facility affiliations

Facilities where JENNIFER BREN, PA-C 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.

DUPAGE MEDICAL GROUP LTD
BLOOMINGDALE, 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 JENNIFER BREN, PA-C. Source: openpaymentsdata.cms.gov.

Total received

$958

Largest payer

MML US, 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 JENNIFER BREN, PA-C. To verify JENNIFER BREN, PA-C'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

JENNIFER BREN, PA-C — brand share 4.0%
Specialty average (est.)

4% brand-name claims vs 96% generic, on 730 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.

730
Total Claims
$32K
Total Drug Cost
218
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
814
Total Day Supply
21,239
Brand vs Generic
4% brand / 96% generic
Brand Drug Cost
$9K
Generic Drug Cost
$23K
Opioid Claims
491 (67.3% rate)

Patient Demographics

Average Patient Age
72.4 years
Avg HCC Risk Score
1.59
Gender Split
62% female / 38% male
Age Distribution
<65: 24, 65-74: 101, 75-84: 74, 85+: 19

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
220
Gabapentin
91
Oxycodone-Acetaminophen
Oxycodone Hcl/Acetaminophen
47
Methylprednisolone
45
Tramadol Hcl
45
Pregabalin
39
Acetaminophen-Codeine
Acetaminophen With Codeine
33
Morphine Sulfate Er
Morphine Sulfate
24
Methadone Hcl
21
Oxycodone Hcl
21

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

Medical Physician Assistant Overview

How JENNIFER BREN, PA-C fits within the Medical Physician Assistant landscape nationally.

40,527
Medical Physician Assistant Providers in US
55
States with Medical Physician Assistant
1,077
Avg Claims per Provider

JENNIFER BREN, PA-C's 730 claims are below the specialty average of 1,077.

Nearby Medical Physician Assistant Providers in Illinois

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

Compare Medical Physician Assistant nationally: see state-by-state distribution →

Frequently Asked Questions

What is JENNIFER BREN, PA-C's specialty?
JENNIFER BREN, PA-C specializes in Medical Physician Assistant and practices in NAPERVILLE, Illinois. Credentials: PA-C.
How much does JENNIFER BREN, PA-C prescribe under Medicare Part D?
In 2023, JENNIFER BREN, PA-C wrote 730 Medicare Part D claims totaling $32K in drug costs for 218 beneficiaries.
Where is JENNIFER BREN, PA-C located?
JENNIFER BREN, PA-C is located at 2940 ROLLINGRIDGE RD, NAPERVILLE, IL, 60564. Phone: (630) 967-6000.
What is JENNIFER BREN, PA-C's NPI number?
JENNIFER BREN, PA-C's National Provider Identifier (NPI) is 1003211160, issued on 10/30/2014.
Does JENNIFER BREN, PA-C prescribe more brand-name or generic drugs?
JENNIFER BREN, PA-C's prescribing is 4% brand-name and 96% generic drugs by claim count, with $9K in brand drug costs.
Does JENNIFER BREN, PA-C prescribe opioids?
Yes, JENNIFER BREN, PA-C had 491 opioid claims in 2023 with an opioid prescribing rate of 67.3%.
How many Medical Physician Assistant providers are there in the US?
There are 40,527 Medical Physician Assistant providers across 55 states in the US. The average Medical Physician Assistant provider writes 1,077 Medicare Part D claims per year.
What drugs does JENNIFER BREN, PA-C prescribe most often?
Based on 2023 Medicare Part D data, JENNIFER BREN, PA-C's most frequently prescribed drugs include Hydrocodone-Acetaminophen, Gabapentin, Oxycodone-Acetaminophen. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does JENNIFER BREN, PA-C accept Medicare?
JENNIFER BREN, PA-C appears in CMS Medicare data with 730 Part D claims and 218 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JENNIFER BREN, PA-C's credentials?
JENNIFER BREN, PA-C's NPI is 1003211160 with credentials PA-C. 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