2026 NPPES data Addiction (Substance Use Disorder) Counselor NPI 1366853582 CSAC
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CLAUDIA WILLIAMS, CSAC

Addiction (Substance Use Disorder) Counselor in CHESAPEAKE, Virginia. 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
27
Medicare Part D claims · Addiction (Substance Use Disorder) Counselor avg: 645

What the federal data shows

CLAUDIA WILLIAMS, CSAC filed 27 Medicare Part D claims in 2023 as a Addiction (Substance Use Disorder) Counselor in CHESAPEAKE, Virginia.

27
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.

CLAUDIA WILLIAMS, CSAC's Medicare Part D volume vs every U.S. prescriber

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

27 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 CLAUDIA WILLIAMS, CSAC?

Quality data not reported

NPI registry status

Active

Issued 05/09/2014

NPI 1366853582

Primary specialty

Addiction (Substance Use Disorder) Counselor

High-volume

109,141 US NPIs in this specialty

Medicare Part D claims

27 96% vs specialty avg

2023 prescription claims

Specialty avg: 645

Specialty distribution in Virginia

How Addiction (Substance Use Disorder) Counselor compares to other specialties among Virginia providers

Virginia providers

Addiction (Substance Use Disorder) Counselor share within Virginia

1. Addiction (Substance Use Disorder) Counselor42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Addiction (Substance Use Disorder) Counselor share within Virginia

Specialty board-certification context

Estimated specialty board-certified rate — Addiction (Substance Use Disorder) Counselor (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Addiction (Substance Use Disorder) Counselor ABMS/AOA estimate

Est. board-certified rate (Addiction (Substance Use Disorder) Counselor) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Addiction (Substance Use Disorder) Counselor) — 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).

CLAUDIA WILLIAMS, CSAC appears in the CMS NPPES registry as a Addiction (Substance Use Disorder) Counselor provider holding CSAC credentials at 3802 POPLAR HILL RD, CHESAPEAKE, VA, 23321, with a listed phone of (757) 239-0550. NPI 1366853582 was issued on 05/09/2014. 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 27 prescription claims written by this provider, covering N/A Medicare beneficiaries and totaling roughly $231 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.

Addiction (Substance Use Disorder) Counselor is a high-volume specialty nationwide, with 109,141 enrolled providers across 55 states and an average of 645 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

3802 POPLAR HILL RD
CHESAPEAKE, VA 23321

Provider Details

NPI 1366853582
Specialty Addiction (Substance Use Disorder) Counselor
Credentials CSAC
Gender Female
NPI Issued 05/09/2014

Medicare Part D Prescribing Data

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

27
Total Claims
$231
Total Drug Cost
N/A
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
27
Total Day Supply
737
Generic Drug Cost
$168

Patient Demographics

Average Patient Age
75.0 years
Avg HCC Risk Score
0.32

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Atorvastatin Calcium
13
Furosemide
13

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

Addiction (Substance Use Disorder) Counselor Overview

How CLAUDIA WILLIAMS, CSAC fits within the Addiction (Substance Use Disorder) Counselor landscape nationally.

109,141
Addiction (Substance Use Disorder) Counselor Providers in US
55
States with Addiction (Substance Use Disorder) Counselor
645
Avg Claims per Provider

CLAUDIA WILLIAMS, CSAC's 27 claims are below the specialty average of 645.

Nearby Addiction (Substance Use Disorder) Counselor Providers in Virginia

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

Compare Addiction (Substance Use Disorder) Counselor nationally: see state-by-state distribution →

Frequently Asked Questions

What is CLAUDIA WILLIAMS, CSAC's specialty?
CLAUDIA WILLIAMS, CSAC specializes in Addiction (Substance Use Disorder) Counselor and practices in CHESAPEAKE, Virginia. Credentials: CSAC.
How much does CLAUDIA WILLIAMS, CSAC prescribe under Medicare Part D?
In 2023, CLAUDIA WILLIAMS, CSAC wrote 27 Medicare Part D claims totaling $231 in drug costs for N/A beneficiaries.
Where is CLAUDIA WILLIAMS, CSAC located?
CLAUDIA WILLIAMS, CSAC is located at 3802 POPLAR HILL RD, CHESAPEAKE, VA, 23321. Phone: (757) 239-0550.
What is CLAUDIA WILLIAMS, CSAC's NPI number?
CLAUDIA WILLIAMS, CSAC's National Provider Identifier (NPI) is 1366853582, issued on 05/09/2014.
How many Addiction (Substance Use Disorder) Counselor providers are there in the US?
There are 109,141 Addiction (Substance Use Disorder) Counselor providers across 55 states in the US. The average Addiction (Substance Use Disorder) Counselor provider writes 645 Medicare Part D claims per year.
What drugs does CLAUDIA WILLIAMS, CSAC prescribe most often?
Based on 2023 Medicare Part D data, CLAUDIA WILLIAMS, CSAC's most frequently prescribed drugs include Atorvastatin Calcium, Furosemide. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does CLAUDIA WILLIAMS, CSAC accept Medicare?
CLAUDIA WILLIAMS, CSAC appears in CMS Medicare data with 27 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 CLAUDIA WILLIAMS, CSAC's credentials?
CLAUDIA WILLIAMS, CSAC's NPI is 1366853582 with credentials CSAC. 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