2026 NPPES data MOHS-Micrographic Surgery Physician NPI 1619530284 MD
Verify on CMS →

KAREN ARNAUD, MD

MOHS-Micrographic Surgery Physician in MURFREESBORO, Tennessee. 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
201
Medicare Part D claims · 87 beneficiaries · MOHS-Micrographic Surgery Physician avg: 607
Generic prescribing
80%
generic claims · 20% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

KAREN ARNAUD, MD filed 201 Medicare Part D claims in 2023 as a MOHS-Micrographic Surgery Physician in MURFREESBORO, Tennessee, prescribing 80% generic.

201
Part D claims, 2023
80%
generic prescribing
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.

KAREN ARNAUD, MD's Medicare Part D volume vs every U.S. prescriber

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

201 49th percentile higher than 49% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). This entry sits in this band. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 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)

KAREN ARNAUD, MD 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 KAREN ARNAUD, MD?

Quality data not reported

NPI registry status

Active

Issued 04/18/2019

NPI 1619530284

Primary specialty

MOHS-Micrographic Surgery Physician

Niche

1,102 US NPIs in this specialty

Medicare Part D claims

201 67% vs specialty avg

2023 prescription claims

Specialty avg: 607

Specialty distribution in Tennessee

How MOHS-Micrographic Surgery Physician compares to other specialties among Tennessee providers

Tennessee providers

MOHS-Micrographic Surgery Physician share within Tennessee

1. MOHS-Micrographic Surgery Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
MOHS-Micrographic Surgery Physician share within Tennessee

Specialty board-certification context

Estimated specialty board-certified rate — MOHS-Micrographic Surgery Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
MOHS-Micrographic Surgery Physician ABMS/AOA estimate

Est. board-certified rate (MOHS-Micrographic Surgery Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (MOHS-Micrographic Surgery 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).

KAREN ARNAUD, MD appears in the CMS NPPES registry as a MOHS-Micrographic Surgery Physician provider holding MD credentials at 1430 MEDICAL CENTER PKWY STE 2A, MURFREESBORO, TN, 37129, with a listed phone of (615) 867-8220. NPI 1619530284 was issued on 04/18/2019. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ARNAUD 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 201 prescription claims written by this provider, covering 87 Medicare beneficiaries and totaling roughly $169K 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.

MOHS-Micrographic Surgery Physician is a narrow specialty nationwide, with 1,102 enrolled providers across 52 states and an average of 607 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

1430 MEDICAL CENTER PKWY STE 2A
MURFREESBORO, TN 37129

Provider Details

NPI 1619530284
Specialty MOHS-Micrographic Surgery Physician
Credentials MD
Gender Female
NPI Issued 04/18/2019

Hospital and facility affiliations

Facilities where KAREN ARNAUD, 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.

MURFREESBORO MEDICAL CLINIC, P.A.
MURFREESBORO, TN

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 · Typical

KAREN ARNAUD, MD — brand share 20.0%
Specialty average (est.)

20% brand-name claims vs 80% generic, on 201 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.

201
Total Claims
$169K
Total Drug Cost
87
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
231
Total Day Supply
5,497
Brand vs Generic
20% brand / 80% generic
Brand Drug Cost
$162K
Generic Drug Cost
$7K
Antibiotic Claims
19

Patient Demographics

Average Patient Age
70.0 years
Avg HCC Risk Score
1.46
Gender Split
49% female / 51% male

Top Prescribed Drugs (Medicare Part D)

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

What KAREN ARNAUD, MD 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
Ketoconazole
35
Dupixent Pen
Dupilumab
29
Triamcinolone Acetonide
23
Clobetasol Propionate
18
Mupirocin
13

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

MOHS-Micrographic Surgery Physician Overview

How KAREN ARNAUD, MD fits within the MOHS-Micrographic Surgery Physician landscape nationally.

1,102
MOHS-Micrographic Surgery Physician Providers in US
52
States with MOHS-Micrographic Surgery Physician
607
Avg Claims per Provider

KAREN ARNAUD, MD's 201 claims are below the specialty average of 607.

Nearby MOHS-Micrographic Surgery Physician Providers in Tennessee

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

Compare MOHS-Micrographic Surgery Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is KAREN ARNAUD, MD's specialty?
KAREN ARNAUD, MD specializes in MOHS-Micrographic Surgery Physician and practices in MURFREESBORO, Tennessee. Credentials: MD.
How much does KAREN ARNAUD, MD prescribe under Medicare Part D?
In 2023, KAREN ARNAUD, MD wrote 201 Medicare Part D claims totaling $169K in drug costs for 87 beneficiaries.
Where is KAREN ARNAUD, MD located?
KAREN ARNAUD, MD is located at 1430 MEDICAL CENTER PKWY STE 2A, MURFREESBORO, TN, 37129. Phone: (615) 867-8220.
What is KAREN ARNAUD, MD's NPI number?
KAREN ARNAUD, MD's National Provider Identifier (NPI) is 1619530284, issued on 04/18/2019.
Does KAREN ARNAUD, MD prescribe more brand-name or generic drugs?
KAREN ARNAUD, MD's prescribing is 20% brand-name and 80% generic drugs by claim count, with $162K in brand drug costs.
How many MOHS-Micrographic Surgery Physician providers are there in the US?
There are 1,102 MOHS-Micrographic Surgery Physician providers across 52 states in the US. The average MOHS-Micrographic Surgery Physician provider writes 607 Medicare Part D claims per year.
What drugs does KAREN ARNAUD, MD prescribe most often?
Based on 2023 Medicare Part D data, KAREN ARNAUD, MD's most frequently prescribed drugs include Ketoconazole, Dupixent Pen, Triamcinolone Acetonide. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does KAREN ARNAUD, MD accept Medicare?
KAREN ARNAUD, MD appears in CMS Medicare data with 201 Part D claims and 87 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify KAREN ARNAUD, MD's credentials?
KAREN ARNAUD, MD's NPI is 1619530284 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