2026 NPPES data Endodontics NPI 1851445845 DDS
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WILLIAM POWELL, DDS

Endodontics in KNOXVILLE, Tennessee. 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.
Industry payments
$111.55
1 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

WILLIAM POWELL, DDS is a Endodontics in KNOXVILLE, Tennessee, listed in the federal CMS National Provider Identifier registry.

$111.55
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 POWELL, DDS?

Quality data not reported

NPI registry status

Active

Issued 01/23/2007

NPI 1851445845

Primary specialty

Endodontics

Mid-sized

5,856 US NPIs in this specialty

Specialty distribution in Tennessee

How Endodontics compares to other specialties among Tennessee providers

Tennessee providers

Endodontics share within Tennessee

1. Endodontics42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Endodontics share within Tennessee

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Endodontics) — 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 POWELL, DDS appears in the CMS NPPES registry as a Endodontics provider holding DDS credentials at 103 CONCORD ST, KNOXVILLE, TN, 37919, with a listed phone of (865) 637-7983. NPI 1851445845 was issued on 01/23/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what POWELL 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 Endodontics providers operate outside Part D entirely.

Endodontics is a mid-sized specialty nationwide, with 5,856 enrolled providers across 53 states and an average of 116 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

103 CONCORD ST
KNOXVILLE, TN 37919

Provider Details

NPI 1851445845
Specialty Endodontics
Credentials DDS
Gender Male
NPI Issued 01/23/2007

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 POWELL, DDS. Source: openpaymentsdata.cms.gov.

Total received

$112

Largest payer

Benco Dental Supply Co.

Most common payment type

Honoraria

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.

Endodontics Overview

How WILLIAM POWELL, DDS fits within the Endodontics landscape nationally.

5,856
Endodontics Providers in US
53
States with Endodontics
116
Avg Claims per Provider

Nearby Endodontics Providers in Tennessee

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

Compare Endodontics nationally: see state-by-state distribution →

Frequently Asked Questions

What is WILLIAM POWELL, DDS's specialty?
WILLIAM POWELL, DDS specializes in Endodontics and practices in KNOXVILLE, Tennessee. Credentials: DDS.
Where is WILLIAM POWELL, DDS located?
WILLIAM POWELL, DDS is located at 103 CONCORD ST, KNOXVILLE, TN, 37919. Phone: (865) 637-7983.
What is WILLIAM POWELL, DDS's NPI number?
WILLIAM POWELL, DDS's National Provider Identifier (NPI) is 1851445845, issued on 01/23/2007.
How many Endodontics providers are there in the US?
There are 5,856 Endodontics providers across 53 states in the US. The average Endodontics provider writes 116 Medicare Part D claims per year.
Does WILLIAM POWELL, DDS accept Medicare?
WILLIAM POWELL, DDS appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify WILLIAM POWELL, DDS's credentials?
WILLIAM POWELL, DDS's NPI is 1851445845 with credentials DDS. 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