2026 NPPES data Psychiatric/Mental Health Registered Nurse NPI 1437478740 RN, APN
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SONYA CANFIELD, RN, APN

Psychiatric/Mental Health Registered Nurse 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
89
Medicare Part D claims · Psychiatric/Mental Health Registered Nurse avg: 893

What the federal data shows

SONYA CANFIELD, RN, APN filed 89 Medicare Part D claims in 2023 as a Psychiatric/Mental Health Registered Nurse in LITTLE ROCK, Arkansas.

89
Part D claims, 2023

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.

SONYA CANFIELD, RN, APN's Medicare Part D volume vs every U.S. prescriber

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

89 0th percentile higher than 0% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 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

What does the federal data show about SONYA CANFIELD, RN, APN?

Quality data not reported

NPI registry status

Active

Issued 05/26/2010

NPI 1437478740

Primary specialty

Psychiatric/Mental Health Registered Nurse

Mid-sized

11,711 US NPIs in this specialty

Medicare Part D claims

89 90% vs specialty avg

2023 prescription claims

Specialty avg: 893

Specialty distribution in Arkansas

How Psychiatric/Mental Health Registered Nurse compares to other specialties among Arkansas providers

Arkansas providers

Psychiatric/Mental Health Registered Nurse share within Arkansas

1. Psychiatric/Mental Health Registered Nurse42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Psychiatric/Mental Health Registered Nurse share within Arkansas

Specialty board-certification context

Estimated specialty board-certified rate — Psychiatric/Mental Health Registered Nurse (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Psychiatric/Mental Health Registered Nurse ABMS/AOA estimate

Est. board-certified rate (Psychiatric/Mental Health Registered Nurse) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Psychiatric/Mental Health Registered Nurse) — 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).

SONYA CANFIELD, RN, APN appears in the CMS NPPES registry as a Psychiatric/Mental Health Registered Nurse provider holding RN, APN credentials at 4301 W MARKHAM ST # 568, LITTLE ROCK, AR, 72205, with a listed phone of (501) 526-8200. NPI 1437478740 was issued on 05/26/2010. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CANFIELD 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 89 prescription claims written by this provider, covering N/A Medicare beneficiaries and totaling roughly $3K in drug spend. 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.

Psychiatric/Mental Health Registered Nurse is a mid-sized specialty nationwide, with 11,711 enrolled providers across 54 states and an average of 893 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 # 568
LITTLE ROCK, AR 72205

Provider Details

NPI 1437478740
Specialty Psychiatric/Mental Health Registered Nurse
Credentials RN, APN
Gender Female
NPI Issued 05/26/2010

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

89
Total Claims
$3K
Total Drug Cost
N/A
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
95
Total Day Supply
2,847
Brand Drug Cost
$0
Generic Drug Cost
$3K

Patient Demographics

Average Patient Age
53.3 years
Avg HCC Risk Score
0.64

Top Prescribed Drugs (Medicare Part D)

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

What SONYA CANFIELD, RN, APN 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
Quetiapine Fumarate
13
Hydroxyzine Pamoate
12
Lamotrigine
12
Lithium Carbonate
12
Sertraline Hcl
12
Clonazepam
11

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

Psychiatric/Mental Health Registered Nurse Overview

How SONYA CANFIELD, RN, APN fits within the Psychiatric/Mental Health Registered Nurse landscape nationally.

11,711
Psychiatric/Mental Health Registered Nurse Providers in US
54
States with Psychiatric/Mental Health Registered Nurse
893
Avg Claims per Provider

SONYA CANFIELD, RN, APN's 89 claims are below the specialty average of 893.

Nearby Psychiatric/Mental Health Registered Nurse Providers in Arkansas

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

Compare Psychiatric/Mental Health Registered Nurse nationally: see state-by-state distribution →

Frequently Asked Questions

What is SONYA CANFIELD, RN, APN's specialty?
SONYA CANFIELD, RN, APN specializes in Psychiatric/Mental Health Registered Nurse and practices in LITTLE ROCK, Arkansas. Credentials: RN, APN.
How much does SONYA CANFIELD, RN, APN prescribe under Medicare Part D?
In 2023, SONYA CANFIELD, RN, APN wrote 89 Medicare Part D claims totaling $3K in drug costs for N/A beneficiaries.
Where is SONYA CANFIELD, RN, APN located?
SONYA CANFIELD, RN, APN is located at 4301 W MARKHAM ST # 568, LITTLE ROCK, AR, 72205. Phone: (501) 526-8200.
What is SONYA CANFIELD, RN, APN's NPI number?
SONYA CANFIELD, RN, APN's National Provider Identifier (NPI) is 1437478740, issued on 05/26/2010.
How many Psychiatric/Mental Health Registered Nurse providers are there in the US?
There are 11,711 Psychiatric/Mental Health Registered Nurse providers across 54 states in the US. The average Psychiatric/Mental Health Registered Nurse provider writes 893 Medicare Part D claims per year.
What drugs does SONYA CANFIELD, RN, APN prescribe most often?
Based on 2023 Medicare Part D data, SONYA CANFIELD, RN, APN's most frequently prescribed drugs include Quetiapine Fumarate, Hydroxyzine Pamoate, Lamotrigine. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does SONYA CANFIELD, RN, APN accept Medicare?
SONYA CANFIELD, RN, APN appears in CMS Medicare data with 89 Part D claims and N/A Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify SONYA CANFIELD, RN, APN's credentials?
SONYA CANFIELD, RN, APN's NPI is 1437478740 with credentials RN, APN. 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