2026 NPPES data Geriatric Medicine (Internal Medicine) Physician NPI 1134219603 MD
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TIMOTHY SIMMONS, MD

Geriatric Medicine (Internal Medicine) Physician in LITTLE ROCK, Arkansas. 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
16K
Medicare Part D claims · 429 beneficiaries · Geriatric Medicine (Internal Medicine) Physician avg: 4K
Generic prescribing
88%
generic claims · 12% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$105.63
1 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: TIMOTHY SIMMONS, MD is a Geriatric Medicine (Internal Medicine) Physician ([object Object]) practicing in LITTLE ROCK, Arkansas with a Medicare Part D prescribing footprint of 16K claims across 429 beneficiaries — 12% brand-name prescribing . Industry payments of $105.63 across 1 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: TIMOTHY SIMMONS, MD filed 16,208 Medicare Part D claims in 2023 across LITTLE ROCK, Arkansas. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

TIMOTHY SIMMONS, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 5 hospital affiliations — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

TIMOTHY SIMMONS, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 10/13/2006

NPI 1134219603

Primary specialty

Geriatric Medicine (Internal Medicine) Physician

Niche

4,161 US NPIs in this specialty

Medicare Part D claims

16,208 264% vs specialty avg

2023 prescription claims

Specialty avg: 4,450

Specialty distribution in Arkansas

How Geriatric Medicine (Internal Medicine) Physician compares to other specialties among Arkansas providers

Arkansas providers

Geriatric Medicine (Internal Medicine) Physician share within Arkansas

1. Geriatric Medicine (Internal Medicine) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Geriatric Medicine (Internal Medicine) Physician share within Arkansas

Specialty board-certification context

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

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

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

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

TIMOTHY SIMMONS, MD is a Geriatric Medicine (Internal Medicine) Physician provider practicing in LITTLE ROCK, Arkansas, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1134219603. 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.

TIMOTHY SIMMONS, MD appears in the CMS NPPES registry as a Geriatric Medicine (Internal Medicine) Physician provider holding MD credentials at 4301 W MARKHAM ST # 783, LITTLE ROCK, AR, 72205, with a listed phone of (501) 686-8000. NPI 1134219603 was issued on 10/13/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what SIMMONS 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 16,208 prescription claims written by this provider, covering 429 Medicare beneficiaries and totaling roughly $955K in drug spend, split 12% brand-name and 88% generic by claim count, with an opioid prescribing rate of 2.3%. 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.

Geriatric Medicine (Internal Medicine) Physician is a narrow specialty nationwide, with 4,161 enrolled providers across 52 states and an average of 4,450 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

4301 W MARKHAM ST # 783
LITTLE ROCK, AR 72205

Provider Details

NPI 1134219603
Specialty Geriatric Medicine (Internal Medicine) Physician
Credentials MD
Gender Male
NPI Issued 10/13/2006

Hospital and facility affiliations

Facilities where TIMOTHY SIMMONS, 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.

ACCESS MEDICAL CLINIC ARKANSAS LTC LLC
PERRYVILLE, AR
ARKANSAS ADVANCED CARE, LLC
NORTH LITTLE ROCK, AR
ICP ARKANSAS ACO BILLING LLC
LITTLE ROCK, AR
ICP LOUISIANA ACO BILLING LLC
SHREVEPORT, LA
SHC MEDICAL PARTNERS OF ARKANSAS LLC
LITTLE ROCK, AR

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 TIMOTHY SIMMONS, MD. Source: openpaymentsdata.cms.gov.

Total received

$106

Largest payer

Neurocrine Biosciences, 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

TIMOTHY SIMMONS, MD — brand share 12.0%
Specialty average (est.)

12% brand-name claims vs 88% generic, on 16,208 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.

16,208
Total Claims
$955K
Total Drug Cost
429
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
16,279
Total Day Supply
389,015
Brand vs Generic
12% brand / 88% generic
Brand Drug Cost
$601K
Generic Drug Cost
$353K
Opioid Claims
368 (2.3% rate)
Antibiotic Claims
269

Patient Demographics

Average Patient Age
76.6 years
Avg HCC Risk Score
2.41
Gender Split
61% female / 39% male
Age Distribution
<65: 59, 65-74: 126, 75-84: 126, 85+: 118

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
843
Amlodipine Besylate
623
Eliquis
Apixaban
551
Furosemide
508
Gabapentin
494
Lisinopril
468
Potassium Chloride
449
Levothyroxine Sodium
389
Metoprolol Tartrate
389
Mirtazapine
372

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

Geriatric Medicine (Internal Medicine) Physician Overview

How TIMOTHY SIMMONS, MD fits within the Geriatric Medicine (Internal Medicine) Physician landscape nationally.

4,161
Geriatric Medicine (Internal Medicine) Physician Providers in US
52
States with Geriatric Medicine (Internal Medicine) Physician
4,450
Avg Claims per Provider

TIMOTHY SIMMONS, MD's 16,208 claims are above the specialty average of 4,450.

Nearby Geriatric Medicine (Internal Medicine) Physician Providers in Arkansas

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

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

Frequently Asked Questions

What is TIMOTHY SIMMONS, MD's specialty?
TIMOTHY SIMMONS, MD specializes in Geriatric Medicine (Internal Medicine) Physician and practices in LITTLE ROCK, Arkansas. Credentials: MD.
How much does TIMOTHY SIMMONS, MD prescribe under Medicare Part D?
In 2023, TIMOTHY SIMMONS, MD wrote 16,208 Medicare Part D claims totaling $955K in drug costs for 429 beneficiaries.
Where is TIMOTHY SIMMONS, MD located?
TIMOTHY SIMMONS, MD is located at 4301 W MARKHAM ST # 783, LITTLE ROCK, AR, 72205. Phone: (501) 686-8000.
What is TIMOTHY SIMMONS, MD's NPI number?
TIMOTHY SIMMONS, MD's National Provider Identifier (NPI) is 1134219603, issued on 10/13/2006.
Does TIMOTHY SIMMONS, MD prescribe more brand-name or generic drugs?
TIMOTHY SIMMONS, MD's prescribing is 12% brand-name and 88% generic drugs by claim count, with $601K in brand drug costs.
Does TIMOTHY SIMMONS, MD prescribe opioids?
Yes, TIMOTHY SIMMONS, MD had 368 opioid claims in 2023 with an opioid prescribing rate of 2.3%.
How many Geriatric Medicine (Internal Medicine) Physician providers are there in the US?
There are 4,161 Geriatric Medicine (Internal Medicine) Physician providers across 52 states in the US. The average Geriatric Medicine (Internal Medicine) Physician provider writes 4,450 Medicare Part D claims per year.
What drugs does TIMOTHY SIMMONS, MD prescribe most often?
Based on 2023 Medicare Part D data, TIMOTHY SIMMONS, MD's most frequently prescribed drugs include Atorvastatin Calcium, Amlodipine Besylate, Eliquis. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does TIMOTHY SIMMONS, MD accept Medicare?
TIMOTHY SIMMONS, MD appears in CMS Medicare data with 16,208 Part D claims and 429 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify TIMOTHY SIMMONS, MD's credentials?
TIMOTHY SIMMONS, MD's NPI is 1134219603 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