Dr. Dillon MacKenzie Gasper, MD

  • Clinton, MO
  • General surgeon
NPI1891258158PAC ID1456740547
Part D claims, 2024
32
Hospital affiliations
1
Industry payments
$6,345
Medical group
1
State license
1
Practice address
1600 N 2nd St, Clinton, MO 64735
Practice phone
Call (660) 885-5511
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Golden Valley Memorial Healthcare

Hospital · Clinton, Missouri

See all 2 affiliations

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Dr. Dillon MacKenzie Gasper is a general surgeon in Clinton, Missouri

Dr. Gasper practices at Golden Valley Memorial Healthcare in Clinton, Missouri, part of Golden Valley Memorial Healthcare.

Dr. Gasper's NPI, 1891258158, was assigned on April 12, 2019. Dr. Gasper graduated from University of Washington School of Medicine in 2019. Dr. Gasper holds Arizona license R77324.

NPI and contact details
Medicare PAC ID
1456740547
NPI enumeration date
April 12, 2019
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(660) 885-5511
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
33
Medical school graduation
2019

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Dillon MacKenzie Gasper practices at Golden Valley Memorial Healthcare in Clinton, Missouri

Dr. Gasper's primary practice is Golden Valley Memorial Healthcare, at 1600 N 2nd St, Clinton, MO 64735 in Henry County. The practice phone is (660) 885-5511.

Source: Dmand AI Affiliation Data

Dr. Dillon MacKenzie Gasper is affiliated with 1 site of care and 1 medical group

Dr. Gasper's primary practice is Golden Valley Memorial Healthcare in Clinton, Missouri, part of Golden Valley Memorial Healthcare. The medical group on file is Golden Valley Memorial Healthcare. Dr. Gasper's employer is on file too: a hospital.

See all 2 affiliations for Dr. Gasper

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Dillon MacKenzie Gasper's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Gasper practices. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Golden Valley Memorial HealthcareAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Dillon MacKenzie Gasper is one of 593 general surgeons in Missouri

Surgery is Dr. Gasper's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Gasper is licensed in Arizona.

Specialties and state licenses

  • Surgery, ArizonaPrimaryLicense R77324 · taxonomy 208600000X

General surgeons near Dr. Gasper

Counts of general surgeons with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Dillon MacKenzie Gasper's patients have a median age of 62

Across all payers, Dmand AI patient panel data puts Dr. Gasper's median patient age at 62, with 54% women.

Dr. Gasper's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 62

Patient panel by sex, all payers

  • Women54%
  • Men46%

Source: Dmand AI Patient Panel Data

Dr. Dillon MacKenzie Gasper wrote 32 Medicare Part D claims in 2024

In 2024, Dr. Gasper wrote 32 Medicare Part D claims for 20 patients. 94% of them were for generic drugs. CMS names the drug for 13 of them, across 1 drug with 11 or more claims each, at $18 in total drug cost. In 2023, CMS named 41 claims across 2 drugs.

Part D claims, 202432
Drugs named by CMS1
Total drug cost$18
Part D patients20

Dr. Gasper's Part D claims by kind of drug, 2024

  • Generic30 claims94%
  • Brand-name and other2 claims6%

Dr. Gasper's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Drug classes CMS tracks in Dr. Gasper's Part D claims, 2024

  • Opioids47%15 of 32 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 412024: 1368%

Drugs named by CMS: 1 in 2024, 2 in 2023.

See all prescribing by Dr. Gasper

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

Dr. Dillon MacKenzie Gasper ranks in the 60th percentile for upper gastrointestinal (gi) endoscopy for acid reflux in Medicare

Dr. Gasper accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 41 procedures of upper gastrointestinal (gi) endoscopy for acid reflux by Dr. Gasper, more than 60% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes

Where Dr. Gasper ranks in Medicare procedure volume

Upper gastrointestinal (GI) endoscopy for acid reflux
60th percentile41 procedures

CMS ranks each clinician against every clinician it reports for the same procedure category.

Colonoscopy: 1 to 10 procedures (CMS shows small counts as a range)

Hernia repair (minimally invasive): 1 to 10 procedures (CMS shows small counts as a range)

Mastectomy: 1 to 10 procedures (CMS shows small counts as a range)

Melanoma (skin cancer) excision: 1 to 10 procedures (CMS shows small counts as a range)

Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)

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Dr. Dillon MacKenzie Gasper received $6,345 in industry payments from 2022 to 2025

CMS Open Payments shows 25 general payments to Dr. Gasper from 10 drug and device companies from 2022 to 2025. Education make up the largest share, 71% of the total. Intuitive Surgical, Inc. paid the most, $4,960.

General payments to Dr. Gasper by program year, 2022 to 2025

General payments to Dr. Gasper by kind, 2022 to 2025

$6.3Kin total
  • Education$4,50071%
  • Food and beverage$1,50724%
  • Travel and lodging$3375%

Companies that paid Dr. Gasper the most, 2022 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Gasper

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Dillon MacKenzie Gasper graduated from University of Washington School of Medicine

Dr. Gasper graduated from University of Washington School of Medicine in 2019.

  1. Medical schoolUniversity of Washington School of Medicine

Source: Dmand AI Professional Profile Data

Sources for Dr. Dillon MacKenzie Gasper's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare patients and the all-payer patient panelDmand AI Patient Panel Data
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Dillon MacKenzie Gasper

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Dillon MacKenzie Gasper's NPI number?

Dr. Dillon MacKenzie Gasper's NPI number is 1891258158. It was assigned on April 12, 2019, and it is active in the NPI Registry.

What kind of doctor is Dr. Dillon MacKenzie Gasper?

Dr. Dillon MacKenzie Gasper is a general surgeon in Clinton, Missouri. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).

Where does Dr. Dillon MacKenzie Gasper practice?

Dr. Gasper practices at 1600 N 2nd St, Clinton, MO 64735. Dr. Gasper's primary practice is Golden Valley Memorial Healthcare in Clinton, Missouri, part of Golden Valley Memorial Healthcare.

What is Dr. Dillon MacKenzie Gasper's office phone number?

The practice phone on file for Dr. Gasper is (660) 885-5511.

What is Dr. Dillon MacKenzie Gasper's medical license number?

Dr. Gasper holds Arizona license R77324.

Which hospitals is Dr. Dillon MacKenzie Gasper affiliated with?

Dr. Gasper practices at Golden Valley Memorial Healthcare in Clinton, Missouri.

What medical group is Dr. Dillon MacKenzie Gasper part of?

Dr. Gasper is linked to Golden Valley Memorial Healthcare.

Does Dr. Dillon MacKenzie Gasper accept Medicare?

Yes. CMS lists Dr. Gasper as accepting Medicare assignment.

Where did Dr. Dillon MacKenzie Gasper go to medical school?

Dr. Gasper graduated from University of Washington School of Medicine in 2019.

What drugs does Dr. Dillon MacKenzie Gasper prescribe most?

In 2024 Medicare Part D data, Dr. Gasper's most prescribed drugs by claims were Oxycodone HCl.

Has Dr. Dillon MacKenzie Gasper received payments from drug or device companies?

CMS Open Payments shows $6,345 in general payments to Dr. Gasper from 10 companies from 2022 to 2025. The largest total came from Intuitive Surgical, Inc.

How long has Dr. Dillon MacKenzie Gasper been practicing?

Dr. Gasper graduated from medical school in 2019, 7 years ago.

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