2026 NPPES data Sleep Medicine (Internal Medicine) Physician NPI 1942774088 PA-C
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ERICA WILLIAMS, PA-C

Sleep Medicine (Internal Medicine) Physician in SEARCY, 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
189
Medicare Part D claims · 43 beneficiaries · Sleep Medicine (Internal Medicine) Physician avg: 1K
Generic prescribing
79%
generic claims · 21% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$63.57
3 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

ERICA WILLIAMS, PA-C filed 189 Medicare Part D claims in 2023 as a Sleep Medicine (Internal Medicine) Physician in SEARCY, Arkansas, prescribing 79% generic.

189
Part D claims, 2023
79%
generic prescribing
$63.57
industry payments (Sunshine Act)

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.

ERICA WILLIAMS, PA-C's Medicare Part D volume vs every U.S. prescriber

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

189 35th percentile higher than 35% 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

Board-eligible specialty (heuristic — not verified)

ERICA WILLIAMS, PA-C practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about ERICA WILLIAMS, PA-C?

Quality data not reported

NPI registry status

Active

Issued 01/11/2019

NPI 1942774088

Primary specialty

Sleep Medicine (Internal Medicine) Physician

Niche

857 US NPIs in this specialty

Medicare Part D claims

189 86% vs specialty avg

2023 prescription claims

Specialty avg: 1,310

Specialty distribution in Arkansas

How Sleep Medicine (Internal Medicine) Physician compares to other specialties among Arkansas providers

Arkansas providers

Sleep Medicine (Internal Medicine) Physician share within Arkansas

1. Sleep Medicine (Internal Medicine) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Sleep Medicine (Internal Medicine) Physician share within Arkansas

Specialty board-certification context

Estimated specialty board-certified rate — Sleep Medicine (Internal Medicine) Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Sleep Medicine (Internal Medicine) Physician ABMS/AOA estimate

Est. board-certified rate (Sleep Medicine (Internal Medicine) Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Sleep Medicine (Internal Medicine) 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).

ERICA WILLIAMS, PA-C appears in the CMS NPPES registry as a Sleep Medicine (Internal Medicine) Physician provider holding PA-C credentials at 2900 HAWKINS DR, SEARCY, AR, 72143, with a listed phone of (501) 278-3007. NPI 1942774088 was issued on 01/11/2019. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what WILLIAMS 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 189 prescription claims written by this provider, covering 43 Medicare beneficiaries and totaling roughly $113K in drug spend, split 21% brand-name and 79% 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.

Sleep Medicine (Internal Medicine) Physician is a narrow specialty nationwide, with 857 enrolled providers across 52 states and an average of 1,310 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

2900 HAWKINS DR
SEARCY, AR 72143

Provider Details

NPI 1942774088
Specialty Sleep Medicine (Internal Medicine) Physician
Credentials PA-C
Gender Female
NPI Issued 01/11/2019

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 ERICA WILLIAMS, PA-C. Source: openpaymentsdata.cms.gov.

Total received

$64

Largest payer

GlaxoSmithKline, LLC.

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

ERICA WILLIAMS, PA-C — brand share 21.0%
Specialty average (est.)

21% brand-name claims vs 79% generic, on 189 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.

189
Total Claims
$113K
Total Drug Cost
43
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
271
Total Day Supply
7,999
Brand vs Generic
21% brand / 79% generic
Brand Drug Cost
$106K
Generic Drug Cost
$8K

Patient Demographics

Average Patient Age
65.8 years
Avg HCC Risk Score
1.36
Gender Split
60% female / 40% male
Age Distribution
<65: 14, 65-74: 20, 75-84: N/A, 85+: N/A

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Pramipexole Dihydrochloride
Pramipexole Di-Hcl
58
Trazodone Hcl
32

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

Sleep Medicine (Internal Medicine) Physician Overview

How ERICA WILLIAMS, PA-C fits within the Sleep Medicine (Internal Medicine) Physician landscape nationally.

857
Sleep Medicine (Internal Medicine) Physician Providers in US
52
States with Sleep Medicine (Internal Medicine) Physician
1,310
Avg Claims per Provider

ERICA WILLIAMS, PA-C's 189 claims are below the specialty average of 1,310.

Nearby Sleep Medicine (Internal Medicine) Physician Providers in Arkansas

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

Compare Sleep Medicine (Internal Medicine) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is ERICA WILLIAMS, PA-C's specialty?
ERICA WILLIAMS, PA-C specializes in Sleep Medicine (Internal Medicine) Physician and practices in SEARCY, Arkansas. Credentials: PA-C.
How much does ERICA WILLIAMS, PA-C prescribe under Medicare Part D?
In 2023, ERICA WILLIAMS, PA-C wrote 189 Medicare Part D claims totaling $113K in drug costs for 43 beneficiaries.
Where is ERICA WILLIAMS, PA-C located?
ERICA WILLIAMS, PA-C is located at 2900 HAWKINS DR, SEARCY, AR, 72143. Phone: (501) 278-3007.
What is ERICA WILLIAMS, PA-C's NPI number?
ERICA WILLIAMS, PA-C's National Provider Identifier (NPI) is 1942774088, issued on 01/11/2019.
Does ERICA WILLIAMS, PA-C prescribe more brand-name or generic drugs?
ERICA WILLIAMS, PA-C's prescribing is 21% brand-name and 79% generic drugs by claim count, with $106K in brand drug costs.
How many Sleep Medicine (Internal Medicine) Physician providers are there in the US?
There are 857 Sleep Medicine (Internal Medicine) Physician providers across 52 states in the US. The average Sleep Medicine (Internal Medicine) Physician provider writes 1,310 Medicare Part D claims per year.
What drugs does ERICA WILLIAMS, PA-C prescribe most often?
Based on 2023 Medicare Part D data, ERICA WILLIAMS, PA-C's most frequently prescribed drugs include Pramipexole Dihydrochloride, Trazodone Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ERICA WILLIAMS, PA-C accept Medicare?
ERICA WILLIAMS, PA-C appears in CMS Medicare data with 189 Part D claims and 43 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ERICA WILLIAMS, PA-C's credentials?
ERICA WILLIAMS, PA-C's NPI is 1942774088 with credentials PA-C. 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