2026 NPPES data Specialist NPI 1659342038 M.D.
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TIMOTHY COOK, M.D.

Specialist in NORTH 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
178
Medicare Part D claims · 79 beneficiaries · Specialist avg: 1K
Generic prescribing
80%
generic claims · 20% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
75/100
▼ 8 pts below national avg 83.1 · [object Object]
Industry payments
$259.54
9 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: TIMOTHY COOK, M.D. is a Specialist ([object Object]) practicing in NORTH LITTLE ROCK, Arkansas with a Medicare Part D prescribing footprint of 178 claims across 79 beneficiaries — 20% brand-name prescribing . Their CMS MIPS Final Score of 75/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities . Industry payments of $259.54 across 9 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: TIMOTHY COOK, M.D. reported a CMS MIPS final score of 75 out of 100, below the 83.1 national average, and filed 178 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

TIMOTHY COOK, M.D. at a glance

Below national average

NPI registry status

Active

Issued 02/01/2006

NPI 1659342038

Primary specialty

Specialist

High-volume

69,658 US NPIs in this specialty

Medicare Part D claims

178 88% vs specialty avg

2023 prescription claims

Specialty avg: 1,474

MIPS final score

75/100 8.099999999999994% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in Arkansas

How Specialist compares to other specialties among Arkansas providers

Arkansas providers

Specialist share within Arkansas

1. Specialist42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Specialist share within Arkansas

Medicare quality performance — MIPS

TIMOTHY COOK, M.D.'s 2023 MIPS final score plotted against the Specialist national average

Below national average
MIPS Final Score
75/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Specialist) — 75/100 vs national avg 83.1

0%100%National avg83%75%
MIPS final score (Specialist) — 75/100 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).

TIMOTHY COOK, M.D. is a Specialist provider practicing in NORTH LITTLE ROCK, Arkansas, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1659342038. 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 COOK, M.D. appears in the CMS NPPES registry as a Specialist provider holding M.D. credentials at 4509 E MCCAIN BLVD, NORTH LITTLE ROCK, AR, 72117, with a listed phone of (501) 955-7676. NPI 1659342038 was issued on 02/01/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what COOK 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 178 prescription claims written by this provider, covering 79 Medicare beneficiaries and totaling roughly $25K in drug spend, split 20% brand-name and 80% 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 75/100 for the 2023 performance year, compared with the national average of 83.1.

Specialist is a high-volume specialty nationwide, with 69,658 enrolled providers across 55 states and an average of 1,474 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

4509 E MCCAIN BLVD
NORTH LITTLE ROCK, AR 72117

Provider Details

NPI 1659342038
Specialty Specialist
Credentials M.D.
Gender Male
NPI Issued 02/01/2006

CMS Quality Score (MIPS)

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

75
Final Score
Avg: 83.1

Reporting: Individual

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 COOK, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$260

Largest payer

JAZZ PHARMACEUTICALS 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 COOK, M.D. — brand share 20.0%
Specialty average (est.)

20% brand-name claims vs 80% generic, on 178 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.

178
Total Claims
$25K
Total Drug Cost
79
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
244
Total Day Supply
5,629
Brand vs Generic
20% brand / 80% generic
Brand Drug Cost
$21K
Generic Drug Cost
$4K

Patient Demographics

Average Patient Age
69.6 years
Avg HCC Risk Score
1.32
Gender Split
54% female / 46% 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
Zolpidem Tartrate
66
Montelukast Sodium
29
Fluticasone Propionate
13
Modafinil
13

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

Specialist Overview

How TIMOTHY COOK, M.D. fits within the Specialist landscape nationally.

69,658
Specialist Providers in US
55
States with Specialist
1,474
Avg Claims per Provider

TIMOTHY COOK, M.D.'s 178 claims are below the specialty average of 1,474.

Nearby Specialist Providers in Arkansas

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

Compare Specialist nationally: see state-by-state distribution →

Frequently Asked Questions

What is TIMOTHY COOK, M.D.'s specialty?
TIMOTHY COOK, M.D. specializes in Specialist and practices in NORTH LITTLE ROCK, Arkansas. Credentials: M.D..
How much does TIMOTHY COOK, M.D. prescribe under Medicare Part D?
In 2023, TIMOTHY COOK, M.D. wrote 178 Medicare Part D claims totaling $25K in drug costs for 79 beneficiaries.
What is TIMOTHY COOK, M.D.'s Medicare quality score?
TIMOTHY COOK, M.D. has a CMS MIPS Final Score of 75/100. The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is TIMOTHY COOK, M.D. located?
TIMOTHY COOK, M.D. is located at 4509 E MCCAIN BLVD, NORTH LITTLE ROCK, AR, 72117. Phone: (501) 955-7676.
What is TIMOTHY COOK, M.D.'s NPI number?
TIMOTHY COOK, M.D.'s National Provider Identifier (NPI) is 1659342038, issued on 02/01/2006.
Does TIMOTHY COOK, M.D. prescribe more brand-name or generic drugs?
TIMOTHY COOK, M.D.'s prescribing is 20% brand-name and 80% generic drugs by claim count, with $21K in brand drug costs.
How many Specialist providers are there in the US?
There are 69,658 Specialist providers across 55 states in the US. The average Specialist provider writes 1,474 Medicare Part D claims per year.
What drugs does TIMOTHY COOK, M.D. prescribe most often?
Based on 2023 Medicare Part D data, TIMOTHY COOK, M.D.'s most frequently prescribed drugs include Zolpidem Tartrate, Montelukast Sodium, Fluticasone Propionate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does TIMOTHY COOK, M.D. accept Medicare?
TIMOTHY COOK, M.D. appears in CMS Medicare data with 178 Part D claims and 79 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify TIMOTHY COOK, M.D.'s credentials?
TIMOTHY COOK, M.D.'s NPI is 1659342038 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.
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