2026 NPPES data Anatomic Pathology & Clinical Pathology Physician NPI 1598744393 DO
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JOHN WILLIAMS, DO

Anatomic Pathology & Clinical Pathology Physician in GULFPORT, Florida. 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
12
Medicare Part D claims · Anatomic Pathology & Clinical Pathology Physician avg: 284

What the federal data shows

JOHN WILLIAMS, DO filed 12 Medicare Part D claims in 2023 as a Anatomic Pathology & Clinical Pathology Physician in GULFPORT, Florida.

12
Part D claims, 2023
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.

JOHN WILLIAMS, DO's Medicare Part D volume vs every U.S. prescriber

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

12 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

Board certification likely (heuristic — not verified)

JOHN WILLIAMS, DO practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 2 hospital affiliations — 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 JOHN WILLIAMS, DO?

Quality data not reported

NPI registry status

Active

Issued 01/11/2006

NPI 1598744393

Primary specialty

Anatomic Pathology & Clinical Pathology Physician

Mid-sized

13,692 US NPIs in this specialty

Medicare Part D claims

12 96% vs specialty avg

2023 prescription claims

Specialty avg: 284

Specialty distribution in Florida

How Anatomic Pathology & Clinical Pathology Physician compares to other specialties among Florida providers

Florida providers

Anatomic Pathology & Clinical Pathology Physician share within Florida

1. Anatomic Pathology & Clinical Pathology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Anatomic Pathology & Clinical Pathology Physician share within Florida

Specialty board-certification context

Estimated specialty board-certified rate — Anatomic Pathology & Clinical Pathology Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Anatomic Pathology & Clinical Pathology Physician ABMS/AOA estimate

Est. board-certified rate (Anatomic Pathology & Clinical Pathology Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Anatomic Pathology & Clinical Pathology 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).

JOHN WILLIAMS, DO appears in the CMS NPPES registry as a Anatomic Pathology & Clinical Pathology Physician provider holding DO credentials at 2821 SEABREEZE DR S, GULFPORT, FL, 33707, with a listed phone of (727) 667-2074. NPI 1598744393 was issued on 01/11/2006. 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 12 prescription claims written by this provider, covering N/A Medicare beneficiaries and totaling roughly $345 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.

Anatomic Pathology & Clinical Pathology Physician is a mid-sized specialty nationwide, with 13,692 enrolled providers across 55 states and an average of 284 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

2821 SEABREEZE DR S
GULFPORT, FL 33707

Provider Details

NPI 1598744393
Specialty Anatomic Pathology & Clinical Pathology Physician
Credentials DO
Gender Male
NPI Issued 01/11/2006

Hospital and facility affiliations

Facilities where JOHN WILLIAMS, DO 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.

SURGICAL PATHOLOGY LABORATORIES PA
PINELLAS PARK, FL
WEST CENTRAL GASTROENTEROLOGY LLP
ST PETERSBURG, FL

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

License & disciplinary context — Florida FLDOH 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~75K Florida medical licensees in 2023 — they are NOT specific to JOHN WILLIAMS, DO. To verify JOHN WILLIAMS, DO's current license status, search the FLDOH public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

480
Total board actions, Florida 2023
Across 467 cases
6.40
Actions per 1,000 licensees
Florida statewide rate
monetary fine
Most common action type
138 cases

FLDOH publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Florida disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Medicare Part D Prescribing Data

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

12
Total Claims
$345
Total Drug Cost
N/A
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
26
Total Day Supply
654
Generic Drug Cost
$229

Patient Demographics

Average Patient Age
72.3 years
Avg HCC Risk Score
0.60

Anatomic Pathology & Clinical Pathology Physician Overview

How JOHN WILLIAMS, DO fits within the Anatomic Pathology & Clinical Pathology Physician landscape nationally.

13,692
Anatomic Pathology & Clinical Pathology Physician Providers in US
55
States with Anatomic Pathology & Clinical Pathology Physician
284
Avg Claims per Provider

JOHN WILLIAMS, DO's 12 claims are below the specialty average of 284.

Nearby Anatomic Pathology & Clinical Pathology Physician Providers in Florida

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

Compare Anatomic Pathology & Clinical Pathology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is JOHN WILLIAMS, DO's specialty?
JOHN WILLIAMS, DO specializes in Anatomic Pathology & Clinical Pathology Physician and practices in GULFPORT, Florida. Credentials: DO.
How much does JOHN WILLIAMS, DO prescribe under Medicare Part D?
In 2023, JOHN WILLIAMS, DO wrote 12 Medicare Part D claims totaling $345 in drug costs for N/A beneficiaries.
Where is JOHN WILLIAMS, DO located?
JOHN WILLIAMS, DO is located at 2821 SEABREEZE DR S, GULFPORT, FL, 33707. Phone: (727) 667-2074.
What is JOHN WILLIAMS, DO's NPI number?
JOHN WILLIAMS, DO's National Provider Identifier (NPI) is 1598744393, issued on 01/11/2006.
How many Anatomic Pathology & Clinical Pathology Physician providers are there in the US?
There are 13,692 Anatomic Pathology & Clinical Pathology Physician providers across 55 states in the US. The average Anatomic Pathology & Clinical Pathology Physician provider writes 284 Medicare Part D claims per year.
Does JOHN WILLIAMS, DO accept Medicare?
JOHN WILLIAMS, DO appears in CMS Medicare data with 12 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 JOHN WILLIAMS, DO's credentials?
JOHN WILLIAMS, DO's NPI is 1598744393 with credentials DO. 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