2026 NPPES data General Practice Dentistry NPI 1801463286 DMD
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ISAAC WORKMAN, DMD

General Practice Dentistry in MARTIN, 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
103
Medicare Part D claims · 64 beneficiaries · General Practice Dentistry avg: 82
Industry payments
$10.2
1 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

ISAAC WORKMAN, DMD filed 103 Medicare Part D claims in 2023 as a General Practice Dentistry in MARTIN, Tennessee.

103
Part D claims, 2023
$10.2
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.

ISAAC WORKMAN, DMD's Medicare Part D volume vs every U.S. prescriber

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

103 35th percentile higher than 35% 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

What does the federal data show about ISAAC WORKMAN, DMD?

Quality data not reported

NPI registry status

Active

Issued 06/05/2021

NPI 1801463286

Primary specialty

General Practice Dentistry

High-volume

121,627 US NPIs in this specialty

Medicare Part D claims

103 26% vs specialty avg

2023 prescription claims

Specialty avg: 82

Specialty distribution in Tennessee

How General Practice Dentistry compares to other specialties among Tennessee providers

Tennessee providers

General Practice Dentistry share within Tennessee

1. General Practice Dentistry42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
General Practice Dentistry share within Tennessee

Specialty board-certification context

Estimated specialty board-certified rate — General Practice Dentistry (ABMS / AOA reference)

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

Est. board-certified rate (General Practice Dentistry) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (General Practice Dentistry) — 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).

ISAAC WORKMAN, DMD appears in the CMS NPPES registry as a General Practice Dentistry provider holding DMD credentials at 113 KENNEDY DRIVE, MARTIN, TN, 38237, with a listed phone of (731) 587-4742. NPI 1801463286 was issued on 06/05/2021. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what WORKMAN 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 103 prescription claims written by this provider, covering 64 Medicare beneficiaries and totaling roughly $712 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.

General Practice Dentistry is a high-volume specialty nationwide, with 121,627 enrolled providers across 56 states and an average of 82 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

113 KENNEDY DRIVE
MARTIN, TN 38237

Provider Details

NPI 1801463286
Specialty General Practice Dentistry
Credentials DMD
Gender Male
NPI Issued 06/05/2021

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 ISAAC WORKMAN, DMD. Source: openpaymentsdata.cms.gov.

Total received

$10

Largest payer

Ultradent Products Inc

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.

103
Total Claims
$712
Total Drug Cost
64
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
103
Total Day Supply
623
Brand Drug Cost
$0
Generic Drug Cost
$712
Antibiotic Claims
85

Patient Demographics

Average Patient Age
72.1 years
Avg HCC Risk Score
1.13
Gender Split
67% female / 33% male

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Amoxicillin
53
Clindamycin Hcl
18

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

General Practice Dentistry Overview

How ISAAC WORKMAN, DMD fits within the General Practice Dentistry landscape nationally.

121,627
General Practice Dentistry Providers in US
56
States with General Practice Dentistry
82
Avg Claims per Provider

ISAAC WORKMAN, DMD's 103 claims are above the specialty average of 82.

Nearby General Practice Dentistry Providers in Tennessee

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

Compare General Practice Dentistry nationally: see state-by-state distribution →

Frequently Asked Questions

What is ISAAC WORKMAN, DMD's specialty?
ISAAC WORKMAN, DMD specializes in General Practice Dentistry and practices in MARTIN, Tennessee. Credentials: DMD.
How much does ISAAC WORKMAN, DMD prescribe under Medicare Part D?
In 2023, ISAAC WORKMAN, DMD wrote 103 Medicare Part D claims totaling $712 in drug costs for 64 beneficiaries.
Where is ISAAC WORKMAN, DMD located?
ISAAC WORKMAN, DMD is located at 113 KENNEDY DRIVE, MARTIN, TN, 38237. Phone: (731) 587-4742.
What is ISAAC WORKMAN, DMD's NPI number?
ISAAC WORKMAN, DMD's National Provider Identifier (NPI) is 1801463286, issued on 06/05/2021.
How many General Practice Dentistry providers are there in the US?
There are 121,627 General Practice Dentistry providers across 56 states in the US. The average General Practice Dentistry provider writes 82 Medicare Part D claims per year.
What drugs does ISAAC WORKMAN, DMD prescribe most often?
Based on 2023 Medicare Part D data, ISAAC WORKMAN, DMD's most frequently prescribed drugs include Amoxicillin, Clindamycin Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ISAAC WORKMAN, DMD accept Medicare?
ISAAC WORKMAN, DMD appears in CMS Medicare data with 103 Part D claims and 64 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ISAAC WORKMAN, DMD's credentials?
ISAAC WORKMAN, DMD's NPI is 1801463286 with credentials DMD. 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