2026 NPPES data General Practice Physician NPI 1912167818 MD
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CORY BROWN, MD

General Practice Physician in CHICAGO, 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
4K
Medicare Part D claims · 146 beneficiaries · General Practice Physician avg: 3K
Generic prescribing
66%
generic claims · 34% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$1.2K
62 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: CORY BROWN, MD is a General Practice Physician ([object Object]) practicing in CHICAGO, Illinois with a Medicare Part D prescribing footprint of 4K claims across 146 beneficiaries — 34% brand-name prescribing . Industry payments of $1.2K across 62 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: CORY BROWN, MD filed 3,605 Medicare Part D claims in 2023 across CHICAGO, Illinois. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

CORY BROWN, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

CORY BROWN, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 06/13/2008

NPI 1912167818

Primary specialty

General Practice Physician

Mid-sized

16,677 US NPIs in this specialty

Medicare Part D claims

3,605 26% vs specialty avg

2023 prescription claims

Specialty avg: 2,872

Specialty distribution in Illinois

How General Practice Physician compares to other specialties among Illinois providers

Illinois providers

General Practice Physician share within Illinois

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

Specialty board-certification context

Estimated specialty board-certified rate — General Practice Physician (ABMS / AOA reference)

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

Est. board-certified rate (General Practice Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (General Practice 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).

CORY BROWN, MD is a General Practice Physician provider practicing in CHICAGO, Illinois, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1912167818. 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.

CORY BROWN, MD appears in the CMS NPPES registry as a General Practice Physician provider holding MD credentials at 4025 N SHERIDAN RD, CHICAGO, IL, 60613, with a listed phone of (773) 388-1600. NPI 1912167818 was issued on 06/13/2008. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BROWN 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 3,605 prescription claims written by this provider, covering 146 Medicare beneficiaries and totaling roughly $3.2 million in drug spend, split 34% brand-name and 66% generic by claim count, with an opioid prescribing rate of 4.7%. 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.

General Practice Physician is a mid-sized specialty nationwide, with 16,677 enrolled providers across 56 states and an average of 2,872 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

4025 N SHERIDAN RD
CHICAGO, IL 60613

Provider Details

NPI 1912167818
Specialty General Practice Physician
Credentials MD
Gender Male
NPI Issued 06/13/2008

Hospital and facility affiliations

Facilities where CORY BROWN, MD 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.

HOWARD BROWN HEALTH CENTER
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 CORY BROWN, MD. Source: openpaymentsdata.cms.gov.

Total received

$1.2K

Largest payer

ViiV Healthcare Company

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 CORY BROWN, MD. To verify CORY BROWN, MD'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 · Above average

CORY BROWN, MD — brand share 34.0%
Specialty average (est.)

34% brand-name claims vs 66% generic, on 3,605 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.

3,605
Total Claims
$3.2M
Total Drug Cost
146
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
6,817
Total Day Supply
197,508
Brand vs Generic
34% brand / 66% generic
Brand Drug Cost
$3.1M
Generic Drug Cost
$120K
Opioid Claims
171 (4.7% rate)
Antibiotic Claims
41

Patient Demographics

Average Patient Age
61.6 years
Avg HCC Risk Score
1.67
Gender Split
23% female / 77% male
Age Distribution
<65: 67, 65-74: 66, 75-84: N/A, 85+: N/A

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Atorvastatin Calcium
185
Biktarvy
Bictegrav/Emtricit/Tenofov Ala
185
Tivicay
Dolutegravir Sodium
164
Losartan Potassium
104
Tramadol Hcl
85
Descovy
Emtricitabine/Tenofov Alafenam
79
Prezcobix
Darunavir/Cobicistat
79
Amlodipine Besylate
76
Metoprolol Succinate
74
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
72

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

General Practice Physician Overview

How CORY BROWN, MD fits within the General Practice Physician landscape nationally.

16,677
General Practice Physician Providers in US
56
States with General Practice Physician
2,872
Avg Claims per Provider

CORY BROWN, MD's 3,605 claims are above the specialty average of 2,872.

Nearby General Practice Physician Providers in Illinois

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

Compare General Practice Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is CORY BROWN, MD's specialty?
CORY BROWN, MD specializes in General Practice Physician and practices in CHICAGO, Illinois. Credentials: MD.
How much does CORY BROWN, MD prescribe under Medicare Part D?
In 2023, CORY BROWN, MD wrote 3,605 Medicare Part D claims totaling $3.2M in drug costs for 146 beneficiaries.
Where is CORY BROWN, MD located?
CORY BROWN, MD is located at 4025 N SHERIDAN RD, CHICAGO, IL, 60613. Phone: (773) 388-1600.
What is CORY BROWN, MD's NPI number?
CORY BROWN, MD's National Provider Identifier (NPI) is 1912167818, issued on 06/13/2008.
Does CORY BROWN, MD prescribe more brand-name or generic drugs?
CORY BROWN, MD's prescribing is 34% brand-name and 66% generic drugs by claim count, with $3.1M in brand drug costs.
Does CORY BROWN, MD prescribe opioids?
Yes, CORY BROWN, MD had 171 opioid claims in 2023 with an opioid prescribing rate of 4.7%.
How many General Practice Physician providers are there in the US?
There are 16,677 General Practice Physician providers across 56 states in the US. The average General Practice Physician provider writes 2,872 Medicare Part D claims per year.
What drugs does CORY BROWN, MD prescribe most often?
Based on 2023 Medicare Part D data, CORY BROWN, MD's most frequently prescribed drugs include Atorvastatin Calcium, Biktarvy, Tivicay. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does CORY BROWN, MD accept Medicare?
CORY BROWN, MD appears in CMS Medicare data with 3,605 Part D claims and 146 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify CORY BROWN, MD's credentials?
CORY BROWN, MD's NPI is 1912167818 with credentials MD. 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