2026 NPPES data Addiction Medicine (Internal Medicine) Physician NPI 1003957663 MD
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WILLIAM STEWART, MD

Addiction Medicine (Internal Medicine) Physician in FRANKLIN, 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.
Prescribing volume
86
Medicare Part D claims · 12 beneficiaries · Addiction Medicine (Internal Medicine) Physician avg: 1K

What the federal data shows

WILLIAM STEWART, MD filed 86 Medicare Part D claims in 2023 as a Addiction Medicine (Internal Medicine) Physician in FRANKLIN, Tennessee.

86
Part D claims, 2023

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.

WILLIAM STEWART, MD's Medicare Part D volume vs every U.S. prescriber

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

86 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-eligible specialty (heuristic — not verified)

WILLIAM STEWART, MD 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).

What does the federal data show about WILLIAM STEWART, MD?

Quality data not reported

NPI registry status

Active

Issued 02/08/2007

NPI 1003957663

Primary specialty

Addiction Medicine (Internal Medicine) Physician

Niche

553 US NPIs in this specialty

Medicare Part D claims

86 94% vs specialty avg

2023 prescription claims

Specialty avg: 1,403

Specialty distribution in Tennessee

How Addiction Medicine (Internal Medicine) Physician compares to other specialties among Tennessee providers

Tennessee providers

Addiction Medicine (Internal Medicine) Physician share within Tennessee

1. Addiction Medicine (Internal Medicine) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Addiction Medicine (Internal Medicine) Physician share within Tennessee

Specialty board-certification context

Estimated specialty board-certified rate — Addiction Medicine (Internal Medicine) Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Addiction Medicine (Internal Medicine) Physician ABMS/AOA estimate

Est. board-certified rate (Addiction Medicine (Internal Medicine) Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Addiction Medicine (Internal Medicine) 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).

WILLIAM STEWART, MD appears in the CMS NPPES registry as a Addiction Medicine (Internal Medicine) Physician provider holding MD credentials at 1881 GENERAL GEORGE PATTON DR, FRANKLIN, TN, 37067, with a listed phone of (615) 829-5700. NPI 1003957663 was issued on 02/08/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what STEWART 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 86 prescription claims written by this provider, covering 12 Medicare beneficiaries and totaling roughly $15K 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.

Addiction Medicine (Internal Medicine) Physician is a narrow specialty nationwide, with 553 enrolled providers across 46 states and an average of 1,403 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

1881 GENERAL GEORGE PATTON DR
FRANKLIN, TN 37067

Provider Details

NPI 1003957663
Specialty Addiction Medicine (Internal Medicine) Physician
Credentials MD
Gender Male
NPI Issued 02/08/2007

Medicare Part D Prescribing Data

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

86
Total Claims
$15K
Total Drug Cost
12
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
86
Total Day Supply
2,421
Generic Drug Cost
$14K

Patient Demographics

Average Patient Age
54.4 years
Avg HCC Risk Score
0.74

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What WILLIAM STEWART, MD prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Buprenorphine-Naloxone
Buprenorphine Hcl/Naloxone Hcl
37
Clonazepam
11
Gabapentin
11

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Addiction Medicine (Internal Medicine) Physician Overview

How WILLIAM STEWART, MD fits within the Addiction Medicine (Internal Medicine) Physician landscape nationally.

553
Addiction Medicine (Internal Medicine) Physician Providers in US
46
States with Addiction Medicine (Internal Medicine) Physician
1,403
Avg Claims per Provider

WILLIAM STEWART, MD's 86 claims are below the specialty average of 1,403.

Nearby Addiction Medicine (Internal Medicine) Physician Providers in Tennessee

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

Compare Addiction Medicine (Internal Medicine) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is WILLIAM STEWART, MD's specialty?
WILLIAM STEWART, MD specializes in Addiction Medicine (Internal Medicine) Physician and practices in FRANKLIN, Tennessee. Credentials: MD.
How much does WILLIAM STEWART, MD prescribe under Medicare Part D?
In 2023, WILLIAM STEWART, MD wrote 86 Medicare Part D claims totaling $15K in drug costs for 12 beneficiaries.
Where is WILLIAM STEWART, MD located?
WILLIAM STEWART, MD is located at 1881 GENERAL GEORGE PATTON DR, FRANKLIN, TN, 37067. Phone: (615) 829-5700.
What is WILLIAM STEWART, MD's NPI number?
WILLIAM STEWART, MD's National Provider Identifier (NPI) is 1003957663, issued on 02/08/2007.
How many Addiction Medicine (Internal Medicine) Physician providers are there in the US?
There are 553 Addiction Medicine (Internal Medicine) Physician providers across 46 states in the US. The average Addiction Medicine (Internal Medicine) Physician provider writes 1,403 Medicare Part D claims per year.
What drugs does WILLIAM STEWART, MD prescribe most often?
Based on 2023 Medicare Part D data, WILLIAM STEWART, MD's most frequently prescribed drugs include Buprenorphine-Naloxone, Clonazepam, Gabapentin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does WILLIAM STEWART, MD accept Medicare?
WILLIAM STEWART, MD appears in CMS Medicare data with 86 Part D claims and 12 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify WILLIAM STEWART, MD's credentials?
WILLIAM STEWART, MD's NPI is 1003957663 with credentials MD. 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