2026 NPPES data Family Medicine Physician NPI 1295269348 MD
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JOSHUA WILLIAMS, MD

Family Medicine Physician in LAMAR, Missouri. 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
6K
Medicare Part D claims · 319 beneficiaries · Family Medicine Physician avg: 3K
Generic prescribing
86%
generic claims · 14% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$346.53
24 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

JOSHUA WILLIAMS, MD filed 5,653 Medicare Part D claims in 2023 as a Family Medicine Physician in LAMAR, Missouri, prescribing 86% generic.

6K
Part D claims, 2023
86%
generic prescribing
Likely
board-certified (heuristic)

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.

JOSHUA WILLIAMS, MD's Medicare Part D volume vs every U.S. prescriber

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

5,653 Top 5% higher than 95% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). Below this entry. 2,000–2,200: 213,991 prescribers (16%). This entry sits in this band. 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 certification likely (heuristic — not verified)

JOSHUA WILLIAMS, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 3 hospital affiliations — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about JOSHUA WILLIAMS, MD?

Quality data not reported

NPI registry status

Active

Issued 04/16/2017

NPI 1295269348

Primary specialty

Family Medicine Physician

High-volume

147,640 US NPIs in this specialty

Medicare Part D claims

5,653 65% vs specialty avg

2023 prescription claims

Specialty avg: 3,418

Specialty distribution in Missouri

How Family Medicine Physician compares to other specialties among Missouri providers

Missouri providers

Family Medicine Physician share within Missouri

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

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Family 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).

JOSHUA WILLIAMS, MD is a Family Medicine Physician provider practicing in LAMAR, Missouri, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1295269348. 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.

JOSHUA WILLIAMS, MD appears in the CMS NPPES registry as a Family Medicine Physician provider holding MD credentials at 29 NW 1ST LN, LAMAR, MO, 64759, with a listed phone of (417) 681-5100. NPI 1295269348 was issued on 04/16/2017. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what WILLIAMS 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 5,653 prescription claims written by this provider, covering 319 Medicare beneficiaries and totaling roughly $576K in drug spend, split 14% brand-name and 86% generic by claim count, with an opioid prescribing rate of 5.4%. 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.

Family Medicine Physician is a high-volume specialty nationwide, with 147,640 enrolled providers across 56 states and an average of 3,418 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

29 NW 1ST LN
LAMAR, MO 64759

Provider Details

NPI 1295269348
Specialty Family Medicine Physician
Credentials MD
Gender Male
NPI Issued 04/16/2017

Hospital and facility affiliations

Facilities where JOSHUA WILLIAMS, MD bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

BARTON COUNTY MEMORIAL HOSPITAL
LAMAR, MO
CBCH LLC
LAMAR, MO
COX BARTON COUNTY HOSPITAL
LAMAR, MO
Critical Access Hospitals
CMS CCN: 261325

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

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 JOSHUA WILLIAMS, MD. Source: openpaymentsdata.cms.gov.

Total received

$347

Largest payer

Novo Nordisk 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.

Brand vs generic prescribing mix · Typical

JOSHUA WILLIAMS, MD — brand share 14.0%
Specialty average (est.)

14% brand-name claims vs 86% generic, on 5,653 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

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

5,653
Total Claims
$576K
Total Drug Cost
319
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
11,110
Total Day Supply
322,452
Brand vs Generic
14% brand / 86% generic
Brand Drug Cost
$472K
Generic Drug Cost
$100K
Opioid Claims
304 (5.4% rate)
Antibiotic Claims
178

Patient Demographics

Average Patient Age
72.5 years
Avg HCC Risk Score
1.67
Gender Split
56% female / 44% male
Age Distribution
<65: 59, 65-74: 116, 75-84: 111, 85+: 33

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Atorvastatin Calcium
312
Levothyroxine Sodium
221
Amlodipine Besylate
172
Lisinopril
151
Gabapentin
125
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
114
Pantoprazole Sodium
111
Albuterol Sulfate Hfa
Albuterol Sulfate
105
Omeprazole
104
Losartan Potassium
100

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

Family Medicine Physician Overview

How JOSHUA WILLIAMS, MD fits within the Family Medicine Physician landscape nationally.

147,640
Family Medicine Physician Providers in US
56
States with Family Medicine Physician
3,418
Avg Claims per Provider

JOSHUA WILLIAMS, MD's 5,653 claims are above the specialty average of 3,418.

Nearby Family Medicine Physician Providers in Missouri

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

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

Frequently Asked Questions

What is JOSHUA WILLIAMS, MD's specialty?
JOSHUA WILLIAMS, MD specializes in Family Medicine Physician and practices in LAMAR, Missouri. Credentials: MD.
How much does JOSHUA WILLIAMS, MD prescribe under Medicare Part D?
In 2023, JOSHUA WILLIAMS, MD wrote 5,653 Medicare Part D claims totaling $576K in drug costs for 319 beneficiaries.
Where is JOSHUA WILLIAMS, MD located?
JOSHUA WILLIAMS, MD is located at 29 NW 1ST LN, LAMAR, MO, 64759. Phone: (417) 681-5100.
What is JOSHUA WILLIAMS, MD's NPI number?
JOSHUA WILLIAMS, MD's National Provider Identifier (NPI) is 1295269348, issued on 04/16/2017.
Does JOSHUA WILLIAMS, MD prescribe more brand-name or generic drugs?
JOSHUA WILLIAMS, MD's prescribing is 14% brand-name and 86% generic drugs by claim count, with $472K in brand drug costs.
Does JOSHUA WILLIAMS, MD prescribe opioids?
Yes, JOSHUA WILLIAMS, MD had 304 opioid claims in 2023 with an opioid prescribing rate of 5.4%.
How many Family Medicine Physician providers are there in the US?
There are 147,640 Family Medicine Physician providers across 56 states in the US. The average Family Medicine Physician provider writes 3,418 Medicare Part D claims per year.
What drugs does JOSHUA WILLIAMS, MD prescribe most often?
Based on 2023 Medicare Part D data, JOSHUA WILLIAMS, MD's most frequently prescribed drugs include Atorvastatin Calcium, Levothyroxine Sodium, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does JOSHUA WILLIAMS, MD accept Medicare?
JOSHUA WILLIAMS, MD appears in CMS Medicare data with 5,653 Part D claims and 319 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JOSHUA WILLIAMS, MD's credentials?
JOSHUA WILLIAMS, MD's NPI is 1295269348 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