2026 NPPES data Critical Care Medicine Nurse Practitioner NPI 1225894264 AGACNP
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William Adcock, AGACNP

Critical Care Medicine Nurse Practitioner in Hattiesburg, Mississippi.

This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 1,410 in Critical Care Medicine Nurse Practitioner, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.

Federal data, no proprietary rating. We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Industry payments
$18.67
1 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

William Adcock, AGACNP is a Critical Care Medicine Nurse Practitioner in Hattiesburg, Mississippi, listed in the federal CMS National Provider Identifier registry.

$18.67
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.

What does the federal data show about William Adcock, AGACNP?

Quality data not reported

NPI registry status

Active

Issued 02/27/2024

NPI 1225894264

Primary specialty

Critical Care Medicine Nurse Practitioner

Niche

1,410 US NPIs in this specialty

Specialty distribution in Mississippi

How Critical Care Medicine Nurse Practitioner compares to other specialties among Mississippi providers

Mississippi providers
Family Nurse Practitioner - 8.8%Family Nurse Practitioner8.8%Mental Health Counselor - 8.1%Mental Health Counselor8.1%Pharmacist - 5.6%Pharmacist5.6%Student in an Organized Health Care Education/Training Program - 5%Student in an Organized Health Care Education/Training Program5%Physical Therapist - 4.2%Physical Therapist4.2%Speech-Language Pathologist - 3.7%Speech-Language Pathologist3.7%Critical Care Medicine Nurse Practitioner - 0%Critical Care Medicine Nurse Practitioner0%
Largest specialties in Mississippi (% of in-state providers)

Board certification

Not published by CMS

CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Critical Care Medicine Nurse Practitioner. Verify directly:

How MIPS and board certification work

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).

William Adcock, AGACNP appears in the CMS NPPES registry as a Critical Care Medicine Nurse Practitioner provider holding AGACNP credentials at 415 S 28TH AVE, Hattiesburg, MS, 39401, with a listed phone of (601) 268-5650. NPI 1225894264 was issued on 02/27/2024.

Medicare Part D prescribing data is not currently published for this NPI, which typically means the provider either wrote fewer than 11 Part D claims in the most recent reporting year, does not participate in Medicare, or practices in a specialty that rarely prescribes outpatient drugs. Absence of prescribing data is not a quality signal, many Critical Care Medicine Nurse Practitioner providers operate outside Part D entirely.

Critical Care Medicine Nurse Practitioner is a narrow specialty nationwide, with 1,410 enrolled providers across 50 states and an average of 426 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

415 S 28TH AVE
Hattiesburg, MS 39401

Provider Details

NPI 1225894264
Specialty Critical Care Medicine Nurse Practitioner
Credentials AGACNP
Gender Male
NPI Issued 02/27/2024

Hospital and facility affiliations

Facilities where William Adcock, AGACNP 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.

Hattiesburg Clinic PA
Hattiesburg, MS

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

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 William Adcock, AGACNP. Source: openpaymentsdata.cms.gov.

Total received

$19

Largest payer

Merck Sharp & Dohme 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.

Critical Care Medicine Nurse Practitioner Overview

How William Adcock, AGACNP fits within the Critical Care Medicine Nurse Practitioner landscape nationally.

1,410
Critical Care Medicine Nurse Practitioner Providers in US
50
States with Critical Care Medicine Nurse Practitioner
426
Avg Claims per Provider

Nearby Critical Care Medicine Nurse Practitioner Providers in Mississippi

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

Compare Critical Care Medicine Nurse Practitioner nationally: see state-by-state distribution →

Before you book an appointment

Use this federal record as your verification checklist, not as a recommendation.

  • Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
  • Check the active license and any disciplinary history with the Mississippi medical board, federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Critical Care Medicine Nurse Practitioner peer on Medicare volume and prescribing patterns. Compare providers

Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.

Frequently Asked Questions

What is William Adcock, AGACNP's specialty?
William Adcock, AGACNP specializes in Critical Care Medicine Nurse Practitioner and practices in Hattiesburg, Mississippi. Credentials: AGACNP.
Where is William Adcock, AGACNP located?
William Adcock, AGACNP is located at 415 S 28TH AVE, Hattiesburg, MS, 39401. Phone: (601) 268-5650.
What is William Adcock, AGACNP's NPI number?
William Adcock, AGACNP's National Provider Identifier (NPI) is 1225894264, issued on 02/27/2024.
How many Critical Care Medicine Nurse Practitioner providers are there in the US?
There are 1,410 Critical Care Medicine Nurse Practitioner providers across 50 states in the US. The average Critical Care Medicine Nurse Practitioner provider writes 426 Medicare Part D claims per year.
Does William Adcock, AGACNP accept Medicare?
William Adcock, AGACNP appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify William Adcock, AGACNP's credentials?
William Adcock, AGACNP's NPI is 1225894264 with credentials AGACNP. 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

View source datasets and methodology notes
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.
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

Compiled from official public sources by the PlainDoctor editorial team.