2026 NPPES data Internal Medicine Physician NPI 1043250343 MD
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ALEXANDER BROWN, MD

Internal Medicine Physician in LEXINGTON, Kentucky. 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
7K
Medicare Part D claims · 948 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
88%
generic claims · 12% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
91.0205/100
▲ 8 pts above national avg 83.1 · [object Object]
Industry payments
$2.1K
110 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: ALEXANDER BROWN, MD is a Internal Medicine Physician ([object Object]) practicing in LEXINGTON, Kentucky with a Medicare Part D prescribing footprint of 7K claims across 948 beneficiaries — 12% brand-name prescribing . Their CMS MIPS Final Score of 91.0205/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities . Industry payments of $2.1K across 110 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: ALEXANDER BROWN, MD reported a CMS MIPS final score of 91.0205 out of 100, above the 83.1 national average, and filed 6,637 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

ALEXANDER BROWN, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 3 hospital affiliations — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

ALEXANDER BROWN, MD at a glance

High performer (top quartile)

NPI registry status

Active

Issued 06/07/2006

NPI 1043250343

Primary specialty

Internal Medicine Physician

High-volume

172,858 US NPIs in this specialty

Medicare Part D claims

6,637 144% vs specialty avg

2023 prescription claims

Specialty avg: 2,716

MIPS final score

91.0205/100 7.920500000000004% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in Kentucky

How Internal Medicine Physician compares to other specialties among Kentucky providers

Kentucky providers

Internal Medicine Physician share within Kentucky

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

Medicare quality performance — MIPS

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

High performer (top quartile)
MIPS Final Score
91.0205/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Internal Medicine Physician) — 91.0205/100 vs national avg 83.1

0%100%National avg83%91%
MIPS final score (Internal Medicine Physician) — 91.0205/100 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).

ALEXANDER BROWN, MD is a Internal Medicine Physician provider practicing in LEXINGTON, Kentucky, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1043250343. 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.

ALEXANDER BROWN, MD appears in the CMS NPPES registry as a Internal Medicine Physician provider holding MD credentials at 330 WALLER AVE, LEXINGTON, KY, 40504, with a listed phone of (859) 254-7000. NPI 1043250343 was issued on 06/07/2006. 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 6,637 prescription claims written by this provider, covering 948 Medicare beneficiaries and totaling roughly $4.5 million in drug spend, split 12% brand-name and 88% generic by claim count, with an opioid prescribing rate of 5.9%. 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 91.0205/100 for the 2023 performance year (Quality 83.864, Cost 91.5829), 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

330 WALLER AVE
LEXINGTON, KY 40504

Provider Details

NPI 1043250343
Specialty Internal Medicine Physician
Credentials MD
Gender Male
NPI Issued 06/07/2006

CMS Quality Score (MIPS)

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

91.0205
Final Score
Avg: 83.1
83.864
Quality
91.5829
Cost

Reporting: Group practice

Hospital and facility affiliations

Facilities where ALEXANDER 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.

BAPTIST HEALTH MEDICAL GROUP INC
LEXINGTON, KY
H2 REHABILITATION SERVICES OF KENTUCKY, LLC
BEREA, KY
PT PROS, INC
LEXINGTON, KY

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 ALEXANDER BROWN, MD. Source: openpaymentsdata.cms.gov.

Total received

$2.1K

Largest payer

Amgen 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.

Brand vs generic prescribing mix · Typical

ALEXANDER BROWN, MD — brand share 12.0%
Specialty average (est.)

12% brand-name claims vs 88% generic, on 6,637 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.

6,637
Total Claims
$4.5M
Total Drug Cost
948
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
11,750
Total Day Supply
341,140
Brand vs Generic
12% brand / 88% generic
Brand Drug Cost
$4.3M
Generic Drug Cost
$171K
Opioid Claims
394 (5.9% rate)
Antibiotic Claims
32

Patient Demographics

Average Patient Age
70.9 years
Avg HCC Risk Score
1.62
Gender Split
72% female / 28% male
Age Distribution
<65: 149, 65-74: 495, 75-84: 245, 85+: 59

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Methotrexate
Methotrexate Sodium
637
Duloxetine Hcl
527
Hydroxychloroquine Sulfate
459
Prednisone
442
Gabapentin
353
Meloxicam
331
Celecoxib
328
Diclofenac Sodium
256
Tramadol Hcl
247
Alendronate Sodium
188

* 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 ALEXANDER BROWN, 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

ALEXANDER BROWN, MD's 6,637 claims are above the specialty average of 2,716.

Nearby Internal Medicine Physician Providers in Kentucky

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

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

Frequently Asked Questions

What is ALEXANDER BROWN, MD's specialty?
ALEXANDER BROWN, MD specializes in Internal Medicine Physician and practices in LEXINGTON, Kentucky. Credentials: MD.
How much does ALEXANDER BROWN, MD prescribe under Medicare Part D?
In 2023, ALEXANDER BROWN, MD wrote 6,637 Medicare Part D claims totaling $4.5M in drug costs for 948 beneficiaries.
What is ALEXANDER BROWN, MD's Medicare quality score?
ALEXANDER BROWN, MD has a CMS MIPS Final Score of 91.0205/100 (Quality: 83.864, Cost: 91.5829). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is ALEXANDER BROWN, MD located?
ALEXANDER BROWN, MD is located at 330 WALLER AVE, LEXINGTON, KY, 40504. Phone: (859) 254-7000.
What is ALEXANDER BROWN, MD's NPI number?
ALEXANDER BROWN, MD's National Provider Identifier (NPI) is 1043250343, issued on 06/07/2006.
Does ALEXANDER BROWN, MD prescribe more brand-name or generic drugs?
ALEXANDER BROWN, MD's prescribing is 12% brand-name and 88% generic drugs by claim count, with $4.3M in brand drug costs.
Does ALEXANDER BROWN, MD prescribe opioids?
Yes, ALEXANDER BROWN, MD had 394 opioid claims in 2023 with an opioid prescribing rate of 5.9%.
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 ALEXANDER BROWN, MD prescribe most often?
Based on 2023 Medicare Part D data, ALEXANDER BROWN, MD's most frequently prescribed drugs include Methotrexate, Duloxetine Hcl, Hydroxychloroquine Sulfate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ALEXANDER BROWN, MD accept Medicare?
ALEXANDER BROWN, MD appears in CMS Medicare data with 6,637 Part D claims and 948 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ALEXANDER BROWN, MD's credentials?
ALEXANDER BROWN, MD's NPI is 1043250343 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