2026 NPPES data Specialist NPI 1598783102 MD
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BRIAN COOK, MD

Specialist in CLINTON, North Carolina. 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
226
Medicare Part D claims · 63 beneficiaries · Specialist avg: 1K
Generic prescribing
91%
generic claims · 9% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: BRIAN COOK, MD is a Specialist ([object Object]) practicing in CLINTON, North Carolina with a Medicare Part D prescribing footprint of 226 claims across 63 beneficiaries — 9% brand-name prescribing .

What stands out: BRIAN COOK, MD filed 226 Medicare Part D claims in 2023 across CLINTON, North Carolina. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

BRIAN COOK, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 07/18/2006

NPI 1598783102

Primary specialty

Specialist

High-volume

69,658 US NPIs in this specialty

Medicare Part D claims

226 85% vs specialty avg

2023 prescription claims

Specialty avg: 1,474

Specialty distribution in North Carolina

How Specialist compares to other specialties among North Carolina providers

North Carolina providers

Specialist share within North Carolina

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

Specialty board-certification context

Estimated specialty board-certified rate — Specialist (ABMS / AOA reference)

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

Est. board-certified rate (Specialist) — ABMS / AOA estimate

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

BRIAN COOK, MD is a Specialist provider practicing in CLINTON, North Carolina, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1598783102. 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.

BRIAN COOK, MD appears in the CMS NPPES registry as a Specialist provider holding MD credentials at 215 BEAMAN STREET, CLINTON, NC, 28328, with a listed phone of (910) 590-2065. NPI 1598783102 was issued on 07/18/2006. 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 226 prescription claims written by this provider, covering 63 Medicare beneficiaries and totaling roughly $9K in drug spend, split 9% brand-name and 91% generic by claim count, with an opioid prescribing rate of 21.2%. 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.

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

215 BEAMAN STREET
CLINTON, NC 28328

Provider Details

NPI 1598783102
Specialty Specialist
Credentials MD
Gender Male
NPI Issued 07/18/2006

Hospital and facility affiliations

Facilities where BRIAN COOK, 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.

GENESISCARE USA OF NORTH CAROLINA, PA
ASHEVILLE, NC

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Brand vs generic prescribing mix · Generic-heavy

BRIAN COOK, MD — brand share 9.0%
Specialty average (est.)

9% brand-name claims vs 91% generic, on 226 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.

226
Total Claims
$9K
Total Drug Cost
63
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
278
Total Day Supply
7,111
Brand vs Generic
9% brand / 91% generic
Brand Drug Cost
$614
Generic Drug Cost
$8K
Opioid Claims
48 (21.2% rate)

Patient Demographics

Average Patient Age
72.7 years
Avg HCC Risk Score
2.25
Gender Split
27% female / 73% 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
Tamsulosin Hcl
33
Oxycodone-Acetaminophen
Oxycodone Hcl/Acetaminophen
20
Oxycodone Hcl
17
Ssd
Silver Sulfadiazine
15
Omeprazole
13
Ondansetron Hcl
12
Oxybutynin Chloride Er
Oxybutynin Chloride
12
Zolpidem Tartrate
12
Megestrol Acetate
11

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

Specialist Overview

How BRIAN COOK, MD fits within the Specialist landscape nationally.

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

BRIAN COOK, MD's 226 claims are below the specialty average of 1,474.

Nearby Specialist Providers in North Carolina

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

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

Frequently Asked Questions

What is BRIAN COOK, MD's specialty?
BRIAN COOK, MD specializes in Specialist and practices in CLINTON, North Carolina. Credentials: MD.
How much does BRIAN COOK, MD prescribe under Medicare Part D?
In 2023, BRIAN COOK, MD wrote 226 Medicare Part D claims totaling $9K in drug costs for 63 beneficiaries.
Where is BRIAN COOK, MD located?
BRIAN COOK, MD is located at 215 BEAMAN STREET, CLINTON, NC, 28328. Phone: (910) 590-2065.
What is BRIAN COOK, MD's NPI number?
BRIAN COOK, MD's National Provider Identifier (NPI) is 1598783102, issued on 07/18/2006.
Does BRIAN COOK, MD prescribe more brand-name or generic drugs?
BRIAN COOK, MD's prescribing is 9% brand-name and 91% generic drugs by claim count, with $614 in brand drug costs.
Does BRIAN COOK, MD prescribe opioids?
Yes, BRIAN COOK, MD had 48 opioid claims in 2023 with an opioid prescribing rate of 21.2%.
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 BRIAN COOK, MD prescribe most often?
Based on 2023 Medicare Part D data, BRIAN COOK, MD's most frequently prescribed drugs include Tamsulosin Hcl, Oxycodone-Acetaminophen, Oxycodone Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does BRIAN COOK, MD accept Medicare?
BRIAN COOK, MD appears in CMS Medicare data with 226 Part D claims and 63 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify BRIAN COOK, MD's credentials?
BRIAN COOK, MD's NPI is 1598783102 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