2026 NPPES data Specialist NPI 1619996337 M.D.
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ARTHUR SMITH, M.D.

Specialist in BATON ROUGE, Louisiana. 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 · 100 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 shows

ARTHUR SMITH, M.D. filed 1,168 Medicare Part D claims in 2023 as a Specialist in BATON ROUGE, Louisiana, prescribing 91% generic.

1K
Part D claims, 2023
91%
generic prescribing

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.

ARTHUR SMITH, M.D.'s Medicare Part D volume vs every U.S. prescriber

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

1,168 Top 23% higher than 77% 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

What does the federal data show about ARTHUR SMITH, M.D.?

Quality data not reported

NPI registry status

Active

Issued 07/19/2006

NPI 1619996337

Primary specialty

Specialist

High-volume

69,658 US NPIs in this specialty

Medicare Part D claims

1,168 21% vs specialty avg

2023 prescription claims

Specialty avg: 1,474

Specialty distribution in Louisiana

How Specialist compares to other specialties among Louisiana providers

Louisiana providers

Specialist share within Louisiana

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

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).

ARTHUR SMITH, M.D. appears in the CMS NPPES registry as a Specialist provider holding M.D. credentials at 2223 QUAIL RUN STE D1, BATON ROUGE, LA, 70808, with a listed phone of (225) 766-9404. NPI 1619996337 was issued on 07/19/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what SMITH 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 1,168 prescription claims written by this provider, covering 100 Medicare beneficiaries and totaling roughly $215K in drug spend, split 9% brand-name and 91% generic by claim count, with an opioid prescribing rate of 3.3%. 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.

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

2223 QUAIL RUN STE D1
BATON ROUGE, LA 70808

Provider Details

NPI 1619996337
Specialty Specialist
Credentials M.D.
Gender Male
NPI Issued 07/19/2006

Brand vs generic prescribing mix · Generic-heavy

ARTHUR SMITH, M.D. — brand share 9.0%
Specialty average (est.)

9% brand-name claims vs 91% generic, on 1,168 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.

1,168
Total Claims
$215K
Total Drug Cost
100
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,861
Total Day Supply
53,648
Brand vs Generic
9% brand / 91% generic
Brand Drug Cost
$144K
Generic Drug Cost
$70K
Opioid Claims
39 (3.3% rate)
Antibiotic Claims
11

Patient Demographics

Average Patient Age
71.0 years
Avg HCC Risk Score
1.31
Gender Split
64% female / 36% male

Top Prescribed Drugs (Medicare Part D)

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

What ARTHUR SMITH, M.D. prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Alprazolam
110
Dextroamphetamine-Amphetamine
Dextroamphetamine/Amphetamine
70
Clonazepam
56
Gabapentin
50
Carbamazepine
46
Zolpidem Tartrate
42
Phenobarbital
39
Butalbital-Acetaminophen-Caffe
Butalb/Acetaminophen/Caffeine
38
Oxcarbazepine
35
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
34

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

Specialist Overview

How ARTHUR SMITH, M.D. fits within the Specialist landscape nationally.

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

ARTHUR SMITH, M.D.'s 1,168 claims are below the specialty average of 1,474.

Nearby Specialist Providers in Louisiana

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

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

Frequently Asked Questions

What is ARTHUR SMITH, M.D.'s specialty?
ARTHUR SMITH, M.D. specializes in Specialist and practices in BATON ROUGE, Louisiana. Credentials: M.D..
How much does ARTHUR SMITH, M.D. prescribe under Medicare Part D?
In 2023, ARTHUR SMITH, M.D. wrote 1,168 Medicare Part D claims totaling $215K in drug costs for 100 beneficiaries.
Where is ARTHUR SMITH, M.D. located?
ARTHUR SMITH, M.D. is located at 2223 QUAIL RUN STE D1, BATON ROUGE, LA, 70808. Phone: (225) 766-9404.
What is ARTHUR SMITH, M.D.'s NPI number?
ARTHUR SMITH, M.D.'s National Provider Identifier (NPI) is 1619996337, issued on 07/19/2006.
Does ARTHUR SMITH, M.D. prescribe more brand-name or generic drugs?
ARTHUR SMITH, M.D.'s prescribing is 9% brand-name and 91% generic drugs by claim count, with $144K in brand drug costs.
Does ARTHUR SMITH, M.D. prescribe opioids?
Yes, ARTHUR SMITH, M.D. had 39 opioid claims in 2023 with an opioid prescribing rate of 3.3%.
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 ARTHUR SMITH, M.D. prescribe most often?
Based on 2023 Medicare Part D data, ARTHUR SMITH, M.D.'s most frequently prescribed drugs include Alprazolam, Dextroamphetamine-Amphetamine, Clonazepam. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ARTHUR SMITH, M.D. accept Medicare?
ARTHUR SMITH, M.D. appears in CMS Medicare data with 1,168 Part D claims and 100 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ARTHUR SMITH, M.D.'s credentials?
ARTHUR SMITH, M.D.'s NPI is 1619996337 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