2026 NPPES data Internal Medicine Physician NPI 1558651224 M.D.
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RYAN BROWN, M.D.

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
1K
Medicare Part D claims · 67 beneficiaries · Internal Medicine Physician avg: 3K

What the federal data shows

RYAN BROWN, M.D. filed 1,017 Medicare Part D claims in 2023 as a Internal Medicine Physician in LEXINGTON, Kentucky.

1K
Part D claims, 2023
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.

RYAN BROWN, M.D.'s Medicare Part D volume vs every U.S. prescriber

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

1,017 Top 24% higher than 76% 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%). This entry sits in this band. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. 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)

RYAN BROWN, M.D. 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).

What does the federal data show about RYAN BROWN, M.D.?

Quality data not reported

NPI registry status

Active

Issued 04/14/2011

NPI 1558651224

Primary specialty

Internal Medicine Physician

High-volume

172,858 US NPIs in this specialty

Medicare Part D claims

1,017 63% vs specialty avg

2023 prescription claims

Specialty avg: 2,716

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

Specialty board-certification context

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

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

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

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

RYAN BROWN, M.D. is a Internal Medicine Physician provider practicing in LEXINGTON, Kentucky, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1558651224. 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.

RYAN BROWN, M.D. appears in the CMS NPPES registry as a Internal Medicine Physician provider holding M.D. credentials at 535 W SECOND ST STE 101, LEXINGTON, KY, 40508, with a listed phone of (859) 687-6595. NPI 1558651224 was issued on 04/14/2011. 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 1,017 prescription claims written by this provider, covering 67 Medicare beneficiaries and totaling roughly $114K in drug spend. 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.

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

535 W SECOND ST STE 101
LEXINGTON, KY 40508

Provider Details

NPI 1558651224
Specialty Internal Medicine Physician
Credentials M.D.
Gender Male
NPI Issued 04/14/2011

Hospital and facility affiliations

Facilities where RYAN BROWN, 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.

BROWN PHYSICIAN GROUP PLLC
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).

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

1,017
Total Claims
$114K
Total Drug Cost
67
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,325
Total Day Supply
66,550
Generic Drug Cost
$17K
Antibiotic Claims
44

Patient Demographics

Average Patient Age
73.2 years
Avg HCC Risk Score
0.86
Gender Split
18% female / 82% male

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
100
Lisinopril
55
Levothyroxine Sodium
44
Losartan Potassium
41
Amlodipine Besylate
34
Hydrochlorothiazide
34
Tamsulosin Hcl
30
Eliquis
Apixaban
29
Metformin Hcl Er
Metformin Hcl
28
Prednisone
23

* 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 RYAN BROWN, M.D. 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

RYAN BROWN, M.D.'s 1,017 claims are below 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 RYAN BROWN, M.D.'s specialty?
RYAN BROWN, M.D. specializes in Internal Medicine Physician and practices in LEXINGTON, Kentucky. Credentials: M.D..
How much does RYAN BROWN, M.D. prescribe under Medicare Part D?
In 2023, RYAN BROWN, M.D. wrote 1,017 Medicare Part D claims totaling $114K in drug costs for 67 beneficiaries.
Where is RYAN BROWN, M.D. located?
RYAN BROWN, M.D. is located at 535 W SECOND ST STE 101, LEXINGTON, KY, 40508. Phone: (859) 687-6595.
What is RYAN BROWN, M.D.'s NPI number?
RYAN BROWN, M.D.'s National Provider Identifier (NPI) is 1558651224, issued on 04/14/2011.
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 RYAN BROWN, M.D. prescribe most often?
Based on 2023 Medicare Part D data, RYAN BROWN, M.D.'s most frequently prescribed drugs include Atorvastatin Calcium, Lisinopril, Levothyroxine Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does RYAN BROWN, M.D. accept Medicare?
RYAN BROWN, M.D. appears in CMS Medicare data with 1,017 Part D claims and 67 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify RYAN BROWN, M.D.'s credentials?
RYAN BROWN, M.D.'s NPI is 1558651224 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