Dr. Larry D. Deffenbaugh, DO
- Medicare services, 2024
- 56
- Medicare patients, 2024
- 66
- Part D claims, 2024
- 93
- Hospital affiliations
- 1
- Industry payments
- $3,350
- Practice address
- 3125 Dr Russell Smith Way, Carthage, MO 64836
- Practice phone
- Call (417) 358-8121
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Deffenbaugh's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Larry D. Deffenbaugh is a gastroenterologist in Carthage, Missouri
Dr. Deffenbaugh practices at Mercy Hospital Carthage in Carthage, Missouri, part of Mercy.
Dr. Deffenbaugh's NPI, 1447290622, was assigned on June 7, 2006. Dr. Deffenbaugh graduated from University of Kansas School of Med (KC/Wich/Sal) in 1974. Dr. Deffenbaugh holds Missouri license R6321.
- NPI
- 1447290622NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5496890782
- NPI enumeration date
- June 7, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (417) 358-8121
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 78
- Medical school graduation
- 1974
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Larry D. Deffenbaugh practices at Mercy Hospital Carthage in Carthage, Missouri
Dr. Deffenbaugh's primary practice is Mercy Hospital Carthage, at 3125 Dr Russell Smith Way, Carthage, MO 64836 in Jasper County. The practice phone is (417) 358-8121.
- Mercy Hospital Carthage3125 Dr Russell Smith Way, Carthage, MO 64836 · Jasper CountyPhone(417) 358-8121
Source: Dmand AI Affiliation Data
Dr. Larry D. Deffenbaugh is affiliated with 2 sites of care and 1 medical group
Dr. Deffenbaugh's primary practice is Mercy Hospital Carthage in Carthage, Missouri, part of Mercy. The medical group on file is Mercy Hospital Columbus. Dmand AI also links Dr. Deffenbaugh to 1 more physician office, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Larry D. Deffenbaugh's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Deffenbaugh practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mercy Hospital Carthage | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dmand AI maps EHR vendors, IT decision makers and buying committees across Mercy and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Larry D. Deffenbaugh is one of 329 gastroenterologists in Missouri
Gastroenterology is Dr. Deffenbaugh's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Deffenbaugh is licensed in Missouri.
Specialties and state licenses
- Gastroenterology, MissouriPrimary
Gastroenterologists near Dr. Deffenbaugh
Counts of gastroenterologists 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. Larry D. Deffenbaugh billed Medicare for 56 services in 2024
CMS data shows 56 Medicare services from Dr. Deffenbaugh across 2 procedure codes in 2024, for 66 Medicare patients. Medicare paid $10,020 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Deffenbaugh's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Other services
- 2023: 692024: 3155%
- Surgery
- 2023: 872024: 2571%
- Office and hospital visits
- 2023: 1142024: 0100%
Dr. Deffenbaugh compared with the Missouri median for gastroenterologists, 2024
- Dr. Deffenbaugh
- Missouri median
- Medicare services
- 56vs 41687% below
- Medicare patients
- 66vs 29678% below
- Part D claims
- 58vs 43487% below
Medians across 337 gastroenterologists in Missouri with Dmand AI profiles that report each measure.
Dr. Deffenbaugh's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Deffenbaugh?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Deffenbaugh and other gastroenterologists in Missouri.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Larry D. Deffenbaugh treated 66 Medicare patients in 2024, average age 72
CMS counts 66 Medicare patients who saw Dr. Deffenbaugh in 2024. The largest group is 65 to 74, with 43 patients. 75% of them have high blood pressure, and 62% have high cholesterol. Their average risk score is 0.82, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Deffenbaugh's median patient age at 69, with 50% women.
Dr. Deffenbaugh's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Deffenbaugh's Medicare patients by sex, 2024
- Women3248%
- Men3452%
Chronic conditions among Dr. Deffenbaugh's Medicare patients, 2024
- High blood pressure75%
- High cholesterol62%
- Arthritis50%
- Diabetes32%
- Ischemic heart disease21%
Share of Medicare patients with each condition. A patient can have several.
Dr. Deffenbaugh's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women50%
- Men50%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Larry D. Deffenbaugh wrote 93 Medicare Part D claims in 2024
In 2024, Dr. Deffenbaugh wrote 93 Medicare Part D claims for 78 patients. 63% of them were for generic drugs. CMS names the drug for 58 of them, across 2 drugs with 11 or more claims each, at $881 in total drug cost. In 2023, CMS named 637 claims across 19 drugs.
Dr. Deffenbaugh's Part D claims by kind of drug, 2024
- Generic59 claims63%
- Brand-name34 claims37%
Dr. Deffenbaugh'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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 6372024: 5891%
Drugs named by CMS: 2 in 2024, 19 in 2023.
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. Larry D. Deffenbaugh ranks in the 56th percentile for colonoscopy in Medicare
Dr. Deffenbaugh accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 35 procedures of colonoscopy by Dr. Deffenbaugh, more than 56% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Deffenbaugh ranks in Medicare procedure volume
- Colonoscopy
- 56th percentile35 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Larry D. Deffenbaugh received $3,350 in industry payments from 2016 to 2023
CMS Open Payments shows 203 general payments to Dr. Deffenbaugh from 23 drug and device companies from 2016 to 2023. Food and beverage make up the largest share, 98% of the total. Abbvie Inc. paid the most, $738.
General payments to Dr. Deffenbaugh by program year, 2016 to 2023
General payments to Dr. Deffenbaugh by kind, 2016 to 2023
- Food and beverage$3,28698%
- Education$642%
Companies that paid Dr. Deffenbaugh the most, 2016 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Larry D. Deffenbaugh graduated from University of Kansas School of Med (KC/Wich/Sal)
Dr. Deffenbaugh graduated from University of Kansas School of Med (KC/Wich/Sal) in 1974.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Larry D. Deffenbaugh's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare 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 percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Larry D. Deffenbaugh
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. Larry D. Deffenbaugh's NPI number?
Dr. Larry D. Deffenbaugh's NPI number is 1447290622. It was assigned on June 7, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Larry D. Deffenbaugh?
Dr. Larry D. Deffenbaugh is a gastroenterologist in Carthage, Missouri. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Larry D. Deffenbaugh practice?
Dr. Deffenbaugh practices at 3125 Dr Russell Smith Way, Carthage, MO 64836. Dr. Deffenbaugh's primary practice is Mercy Hospital Carthage in Carthage, Missouri, part of Mercy. Dmand AI also links Dr. Deffenbaugh to 1 physician office.
What is Dr. Larry D. Deffenbaugh's office phone number?
The practice phone on file for Dr. Deffenbaugh is (417) 358-8121.
What is Dr. Larry D. Deffenbaugh's medical license number?
Dr. Deffenbaugh holds Missouri license R6321.
Which hospitals is Dr. Larry D. Deffenbaugh affiliated with?
Dr. Deffenbaugh practices at Mercy Hospital Carthage in Carthage, Missouri.
What medical group is Dr. Larry D. Deffenbaugh part of?
Dr. Deffenbaugh is linked to Mercy Hospital Columbus.
Does Dr. Larry D. Deffenbaugh accept Medicare?
Yes. CMS data shows Dr. Deffenbaugh billed Medicare for 56 services in 2024, and Dr. Deffenbaugh accepts Medicare assignment.
How many Medicare patients does Dr. Larry D. Deffenbaugh see?
CMS counts 66 Medicare patients who saw Dr. Deffenbaugh in 2024, with an average age of 72.
What services does Dr. Larry D. Deffenbaugh bill to Medicare?
In 2024, Dr. Deffenbaugh's most billed Medicare services were medicare service (G0121) and surgery: digestive system (45385).
Show 4 more questionsShow fewer questions
Where did Dr. Larry D. Deffenbaugh go to medical school?
Dr. Deffenbaugh graduated from University of Kansas School of Med (KC/Wich/Sal) in 1974.
What drugs does Dr. Larry D. Deffenbaugh prescribe most?
In 2024 Medicare Part D data, Dr. Deffenbaugh's most prescribed drugs by claims were Peg-3350 And Electrolytes and Gavilyte-G.
Has Dr. Larry D. Deffenbaugh received payments from drug or device companies?
CMS Open Payments shows $3,350 in general payments to Dr. Deffenbaugh from 23 companies from 2016 to 2023. The largest total came from Abbvie Inc.
How long has Dr. Larry D. Deffenbaugh been practicing?
Dr. Deffenbaugh graduated from medical school in 1974, 52 years ago.
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