2026 NPPES data Internal Medicine Physician NPI 1538508726 MD
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ERIKA BREWER, MD

Internal Medicine 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
2K
Medicare Part D claims · 412 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
58%
generic claims · 42% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
93.0872/100
▲ 10 pts above national avg 83.1 · [object Object]
Industry payments
$558.65
24 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

ERIKA BREWER, MD reported a CMS MIPS final score of 93.0872/100 — above the 83.1 national average — and filed 1,724 Medicare Part D claims in 2023.

93.0872/100
MIPS score · +10 vs avg
2K
Part D claims, 2023
58%
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.

ERIKA BREWER, MD's MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

93 Top 29% higher than 71% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). Below this entry. 80–90: 129,887 scored providers (27%). Below this entry. 90–100: 189,403 scored providers (40%). This entry sits in this band. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023

Board certification likely (heuristic — not verified)

ERIKA BREWER, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation — 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 ERIKA BREWER, MD?

High performer (top quartile)

NPI registry status

Active

Issued 06/20/2013

NPI 1538508726

Primary specialty

Internal Medicine Physician

High-volume

172,858 US NPIs in this specialty

Medicare Part D claims

1,724 37% vs specialty avg

2023 prescription claims

Specialty avg: 2,716

MIPS final score

93.0872/100 9.987200000000001% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in Illinois

How Internal Medicine Physician compares to other specialties among Illinois providers

Illinois providers

Internal Medicine Physician share within Illinois

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

Medicare quality performance — MIPS

ERIKA BREWER, MD's 2023 MIPS final score plotted against the Internal Medicine Physician national average

High performer (top quartile)
MIPS Final Score
93.0872/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Internal Medicine Physician) — 93.0872/100 vs national avg 83.1

0%100%National avg83%93.1%
MIPS final score (Internal Medicine Physician) — 93.0872/100 vs national avg 83.1

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).

ERIKA BREWER, MD appears in the CMS NPPES registry as a Internal Medicine Physician provider holding MD credentials at 2740 W FOSTER AVE STE 301, CHICAGO, IL, 60625, with a listed phone of (773) 271-3139. NPI 1538508726 was issued on 06/20/2013. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BREWER 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 1,724 prescription claims written by this provider, covering 412 Medicare beneficiaries and totaling roughly $254K in drug spend, split 42% brand-name and 58% 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 93.0872/100 for the 2023 performance year (Quality 80.7919), compared with the national average of 83.1.

Internal Medicine Physician is a high-volume specialty nationwide, with 172,858 enrolled providers across 56 states and an average of 2,716 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

2740 W FOSTER AVE STE 301
CHICAGO, IL 60625

Provider Details

NPI 1538508726
Specialty Internal Medicine Physician
Credentials MD
Gender Female
NPI Issued 06/20/2013

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

93.0872
Final Score
Avg: 83.1
80.7919
Quality
100
Promoting Interoperability

Reporting: Alternative Payment Model

Hospital and facility affiliations

Facilities where ERIKA BREWER, 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.

ENDEAVOR HEALTH 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).

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 ERIKA BREWER, MD. Source: openpaymentsdata.cms.gov.

Total received

$559

Largest payer

Bausch & Lomb Americas 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 ERIKA BREWER, MD. To verify ERIKA BREWER, 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

ERIKA BREWER, MD — brand share 42.0%
Specialty average (est.)

42% brand-name claims vs 58% generic, on 1,724 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.

1,724
Total Claims
$254K
Total Drug Cost
412
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
3,300
Total Day Supply
95,308
Brand vs Generic
42% brand / 58% generic
Brand Drug Cost
$225K
Generic Drug Cost
$29K

Patient Demographics

Average Patient Age
76.0 years
Avg HCC Risk Score
1.42
Gender Split
62% female / 38% male
Age Distribution
<65: 13, 65-74: 177, 75-84: 160, 85+: 62

Top Prescribed Drugs (Medicare Part D)

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

What ERIKA BREWER, MD 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
Latanoprost
578
Dorzolamide-Timolol
Dorzolamide Hcl/Timolol Maleat
264
Prednisolone Acetate
178
Ofloxacin
105
Restasis
Cyclosporine
101
Ketorolac Tromethamine
80
Brimonidine Tartrate
74
Dorzolamide Hcl
51
Fluorometholone
51
Alphagan P
Brimonidine Tartrate
35

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

Internal Medicine Physician Overview

How ERIKA BREWER, MD fits within the Internal Medicine Physician landscape nationally.

172,858
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,716
Avg Claims per Provider

ERIKA BREWER, MD's 1,724 claims are below the specialty average of 2,716.

Nearby Internal Medicine Physician Providers in Illinois

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

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

Frequently Asked Questions

What is ERIKA BREWER, MD's specialty?
ERIKA BREWER, MD specializes in Internal Medicine Physician and practices in CHICAGO, Illinois. Credentials: MD.
How much does ERIKA BREWER, MD prescribe under Medicare Part D?
In 2023, ERIKA BREWER, MD wrote 1,724 Medicare Part D claims totaling $254K in drug costs for 412 beneficiaries.
What is ERIKA BREWER, MD's Medicare quality score?
ERIKA BREWER, MD has a CMS MIPS Final Score of 93.0872/100 (Quality: 80.7919). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is ERIKA BREWER, MD located?
ERIKA BREWER, MD is located at 2740 W FOSTER AVE STE 301, CHICAGO, IL, 60625. Phone: (773) 271-3139.
What is ERIKA BREWER, MD's NPI number?
ERIKA BREWER, MD's National Provider Identifier (NPI) is 1538508726, issued on 06/20/2013.
Does ERIKA BREWER, MD prescribe more brand-name or generic drugs?
ERIKA BREWER, MD's prescribing is 42% brand-name and 58% generic drugs by claim count, with $225K in brand drug costs.
How many Internal Medicine Physician providers are there in the US?
There are 172,858 Internal Medicine Physician providers across 56 states in the US. The average Internal Medicine Physician provider writes 2,716 Medicare Part D claims per year.
What drugs does ERIKA BREWER, MD prescribe most often?
Based on 2023 Medicare Part D data, ERIKA BREWER, MD's most frequently prescribed drugs include Latanoprost, Dorzolamide-Timolol, Prednisolone Acetate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ERIKA BREWER, MD accept Medicare?
ERIKA BREWER, MD appears in CMS Medicare data with 1,724 Part D claims and 412 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ERIKA BREWER, MD's credentials?
ERIKA BREWER, MD's NPI is 1538508726 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.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
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