2026 NPPES data Peer Specialist NPI 1073102463 PSS
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WILLIAM ANDERSON, PSS

Peer Specialist in LOUISA, Kentucky. 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: WILLIAM ANDERSON, PSS is a Peer Specialist ([object Object]) practicing in LOUISA, Kentucky .

What stands out: WILLIAM ANDERSON, PSS specializes in Peer Specialist and practices in LOUISA, Kentucky, 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.

WILLIAM ANDERSON, PSS at a glance

Quality data not reported

NPI registry status

Active

Issued 01/11/2021

NPI 1073102463

Primary specialty

Peer Specialist

Mid-sized

28,315 US NPIs in this specialty

Specialty distribution in Kentucky

How Peer Specialist compares to other specialties among Kentucky providers

Kentucky providers

Peer Specialist share within Kentucky

1. Peer Specialist42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Peer Specialist share within Kentucky

Specialty board-certification context

Estimated specialty board-certified rate — Peer Specialist (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Peer Specialist ABMS/AOA estimate

Est. board-certified rate (Peer Specialist) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Peer Specialist) — 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).

WILLIAM ANDERSON, PSS is a Peer Specialist provider practicing in LOUISA, Kentucky, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: PSS. NPI: 1073102463. 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.

WILLIAM ANDERSON, PSS appears in the CMS NPPES registry as a Peer Specialist provider holding PSS credentials at 125 S MAIN CROSS ST, LOUISA, KY, 41230, with a listed phone of (606) 639-0938. NPI 1073102463 was issued on 01/11/2021. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ANDERSON 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 Peer Specialist providers operate outside Part D entirely.

Peer Specialist is a mid-sized specialty nationwide, with 28,315 enrolled providers across 51 states and an average of 95 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

125 S MAIN CROSS ST
LOUISA, KY 41230

Provider Details

NPI 1073102463
Specialty Peer Specialist
Credentials PSS
Gender Male
NPI Issued 01/11/2021

Peer Specialist Overview

How WILLIAM ANDERSON, PSS fits within the Peer Specialist landscape nationally.

28,315
Peer Specialist Providers in US
51
States with Peer Specialist
95
Avg Claims per Provider

Nearby Peer Specialist Providers in Kentucky

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

Compare Peer Specialist nationally: see state-by-state distribution →

Frequently Asked Questions

What is WILLIAM ANDERSON, PSS's specialty?
WILLIAM ANDERSON, PSS specializes in Peer Specialist and practices in LOUISA, Kentucky. Credentials: PSS.
Where is WILLIAM ANDERSON, PSS located?
WILLIAM ANDERSON, PSS is located at 125 S MAIN CROSS ST, LOUISA, KY, 41230. Phone: (606) 639-0938.
What is WILLIAM ANDERSON, PSS's NPI number?
WILLIAM ANDERSON, PSS's National Provider Identifier (NPI) is 1073102463, issued on 01/11/2021.
How many Peer Specialist providers are there in the US?
There are 28,315 Peer Specialist providers across 51 states in the US. The average Peer Specialist provider writes 95 Medicare Part D claims per year.
Does WILLIAM ANDERSON, PSS accept Medicare?
WILLIAM ANDERSON, PSS appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify WILLIAM ANDERSON, PSS's credentials?
WILLIAM ANDERSON, PSS's NPI is 1073102463 with credentials PSS. 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