2026 NPPES data Anatomic Pathology Physician NPI 1891774246 M.D.
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ELDON MCCLAIN, M.D.

Anatomic Pathology Physician in BILOXI, Mississippi. 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.
What the federal data reveals: ELDON MCCLAIN, M.D. is a Anatomic Pathology Physician ([object Object]) practicing in BILOXI, Mississippi .

What stands out: ELDON MCCLAIN, M.D. specializes in Anatomic Pathology Physician and practices in BILOXI, Mississippi, listed in the federal CMS National Provider Identifier registry. Every detail on this page comes straight from federal CMS records, with no proprietary rating applied.

Board-eligible specialty (heuristic — not verified)

ELDON MCCLAIN, M.D. 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).

ELDON MCCLAIN, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 01/13/2006

NPI 1891774246

Primary specialty

Anatomic Pathology Physician

Niche

2,597 US NPIs in this specialty

Specialty distribution in Mississippi

How Anatomic Pathology Physician compares to other specialties among Mississippi providers

Mississippi providers

Anatomic Pathology Physician share within Mississippi

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

Specialty board-certification context

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

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

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

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

ELDON MCCLAIN, M.D. is a Anatomic Pathology Physician provider practicing in BILOXI, Mississippi, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1891774246. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

ELDON MCCLAIN, M.D. appears in the CMS NPPES registry as a Anatomic Pathology Physician provider holding M.D. credentials at 150 REYNOIR ST, BILOXI, MS, 39530, with a listed phone of (228) 432-1571. NPI 1891774246 was issued on 01/13/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MCCLAIN 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 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 Anatomic Pathology Physician providers operate outside Part D entirely.

Anatomic Pathology Physician is a narrow specialty nationwide, with 2,597 enrolled providers across 54 states and an average of 214 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

150 REYNOIR ST
BILOXI, MS 39530

Provider Details

NPI 1891774246
Specialty Anatomic Pathology Physician
Credentials M.D.
Gender Male
NPI Issued 01/13/2006

Anatomic Pathology Physician Overview

How ELDON MCCLAIN, M.D. fits within the Anatomic Pathology Physician landscape nationally.

2,597
Anatomic Pathology Physician Providers in US
54
States with Anatomic Pathology Physician
214
Avg Claims per Provider

Nearby Anatomic Pathology Physician Providers in Mississippi

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

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

Frequently Asked Questions

What is ELDON MCCLAIN, M.D.'s specialty?
ELDON MCCLAIN, M.D. specializes in Anatomic Pathology Physician and practices in BILOXI, Mississippi. Credentials: M.D..
Where is ELDON MCCLAIN, M.D. located?
ELDON MCCLAIN, M.D. is located at 150 REYNOIR ST, BILOXI, MS, 39530. Phone: (228) 432-1571.
What is ELDON MCCLAIN, M.D.'s NPI number?
ELDON MCCLAIN, M.D.'s National Provider Identifier (NPI) is 1891774246, issued on 01/13/2006.
How many Anatomic Pathology Physician providers are there in the US?
There are 2,597 Anatomic Pathology Physician providers across 54 states in the US. The average Anatomic Pathology Physician provider writes 214 Medicare Part D claims per year.
Does ELDON MCCLAIN, M.D. accept Medicare?
ELDON MCCLAIN, M.D. appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ELDON MCCLAIN, M.D.'s credentials?
ELDON MCCLAIN, M.D.'s NPI is 1891774246 with credentials M.D.. 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.
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