2026 NPPES data Emergency Medicine Physician NPI 1063450237 D.O.
Verify on CMS →

WILLIAM BARTZ, D.O.

Emergency Medicine Physician in SELMER, 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
974
Medicare Part D claims · 170 beneficiaries · Emergency Medicine Physician avg: 352
Industry payments
$27.54
2 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: WILLIAM BARTZ, D.O. is a Emergency Medicine Physician ([object Object]) practicing in SELMER, Tennessee with a Medicare Part D prescribing footprint of 974 claims across 170 beneficiaries . Industry payments of $27.54 across 2 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: WILLIAM BARTZ, D.O. filed 974 Medicare Part D claims in 2023 across SELMER, Tennessee. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board-eligible specialty (heuristic — not verified)

WILLIAM BARTZ, D.O. 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).

WILLIAM BARTZ, D.O. at a glance

Quality data not reported

NPI registry status

Active

Issued 06/02/2006

NPI 1063450237

Primary specialty

Emergency Medicine Physician

High-volume

64,398 US NPIs in this specialty

Medicare Part D claims

974 177% vs specialty avg

2023 prescription claims

Specialty avg: 352

Specialty distribution in Tennessee

How Emergency Medicine Physician compares to other specialties among Tennessee providers

Tennessee providers

Emergency Medicine Physician share within Tennessee

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

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Emergency 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 BARTZ, D.O. is a Emergency Medicine Physician provider practicing in SELMER, Tennessee, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: D.O.. NPI: 1063450237. 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 BARTZ, D.O. appears in the CMS NPPES registry as a Emergency Medicine Physician provider holding D.O. credentials at 104 W COURT AVE, SELMER, TN, 38375, with a listed phone of (731) 437-2720. NPI 1063450237 was issued on 06/02/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BARTZ 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 974 prescription claims written by this provider, covering 170 Medicare beneficiaries and totaling roughly $46K in drug spend, with an opioid prescribing rate of 1.6%. 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.

Emergency Medicine Physician is a high-volume specialty nationwide, with 64,398 enrolled providers across 56 states and an average of 352 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

104 W COURT AVE
SELMER, TN 38375

Provider Details

NPI 1063450237
Specialty Emergency Medicine Physician
Credentials D.O.
Gender Male
NPI Issued 06/02/2006

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 BARTZ, D.O.. Source: openpaymentsdata.cms.gov.

Total received

$28

Largest payer

AstraZeneca Pharmaceuticals LP

Most common payment type

Food and Beverage

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.

Medicare Part D Prescribing Data

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

974
Total Claims
$46K
Total Drug Cost
170
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,744
Total Day Supply
44,380
Generic Drug Cost
$18K
Opioid Claims
16 (1.6% rate)
Antibiotic Claims
105

Patient Demographics

Average Patient Age
70.7 years
Avg HCC Risk Score
1.05
Gender Split
59% female / 41% male
Age Distribution
<65: 29, 65-74: 78, 75-84: 50, 85+: 13

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Buprenorphine-Naloxone
Buprenorphine Hcl/Naloxone Hcl
66
Ciprofloxacin Hcl
45
Prednisone
44
Fluconazole
32
Gabapentin
30
Omeprazole
28
Montelukast Sodium
23
Doxycycline Hyclate
22
Azithromycin
21
Simvastatin
21

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

Emergency Medicine Physician Overview

How WILLIAM BARTZ, D.O. fits within the Emergency Medicine Physician landscape nationally.

64,398
Emergency Medicine Physician Providers in US
56
States with Emergency Medicine Physician
352
Avg Claims per Provider

WILLIAM BARTZ, D.O.'s 974 claims are above the specialty average of 352.

Nearby Emergency Medicine Physician Providers in Tennessee

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

Compare Emergency Medicine Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is WILLIAM BARTZ, D.O.'s specialty?
WILLIAM BARTZ, D.O. specializes in Emergency Medicine Physician and practices in SELMER, Tennessee. Credentials: D.O..
How much does WILLIAM BARTZ, D.O. prescribe under Medicare Part D?
In 2023, WILLIAM BARTZ, D.O. wrote 974 Medicare Part D claims totaling $46K in drug costs for 170 beneficiaries.
Where is WILLIAM BARTZ, D.O. located?
WILLIAM BARTZ, D.O. is located at 104 W COURT AVE, SELMER, TN, 38375. Phone: (731) 437-2720.
What is WILLIAM BARTZ, D.O.'s NPI number?
WILLIAM BARTZ, D.O.'s National Provider Identifier (NPI) is 1063450237, issued on 06/02/2006.
Does WILLIAM BARTZ, D.O. prescribe opioids?
Yes, WILLIAM BARTZ, D.O. had 16 opioid claims in 2023 with an opioid prescribing rate of 1.6%.
How many Emergency Medicine Physician providers are there in the US?
There are 64,398 Emergency Medicine Physician providers across 56 states in the US. The average Emergency Medicine Physician provider writes 352 Medicare Part D claims per year.
What drugs does WILLIAM BARTZ, D.O. prescribe most often?
Based on 2023 Medicare Part D data, WILLIAM BARTZ, D.O.'s most frequently prescribed drugs include Buprenorphine-Naloxone, Ciprofloxacin Hcl, Prednisone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does WILLIAM BARTZ, D.O. accept Medicare?
WILLIAM BARTZ, D.O. appears in CMS Medicare data with 974 Part D claims and 170 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify WILLIAM BARTZ, D.O.'s credentials?
WILLIAM BARTZ, D.O.'s NPI is 1063450237 with credentials D.O.. 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