Dr. John J. Callaghan, MD
- Medicare services, 2017
- 675
- Part D claims, 2017
- 15
- Hospital affiliations
- 1
- Industry payments
- $36.6M
- State license
- 1
- Practice address
- 1002 South Lincoln Street, Knoxville, IA 50138
- Practice phone
- Call (641) 842-2151
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Callaghan'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. John J. Callaghan is an orthopedic surgeon in Knoxville, Iowa
Dr. Callaghan practices at Knoxville Hospital & Clinics in Knoxville, Iowa, part of Knoxville Hospital & Clinics.
Dr. Callaghan's NPI, 1154316636, was assigned on September 12, 2005. Dr. Callaghan holds Iowa license 21696.
- NPI
- 1154316636NPI Registry (opens in a new tab)
- NPI enumeration date
- September 12, 2005
- NPI status
- Active
- Practice phone
- (641) 842-2151
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. John J. Callaghan practices at Knoxville Hospital & Clinics in Knoxville, Iowa
Dr. Callaghan's primary practice is Knoxville Hospital & Clinics, at 1002 South Lincoln Street, Knoxville, IA 50138 in Marion County. The practice phone is (641) 842-2151.
- Knoxville Hospital & Clinics1002 South Lincoln Street, Knoxville, IA 50138 · Marion CountyPhone(641) 842-2151
Source: Dmand AI Affiliation Data
Dr. John J. Callaghan is affiliated with 1 site of care
Dr. Callaghan's primary practice is Knoxville Hospital & Clinics in Knoxville, Iowa, part of Knoxville Hospital & Clinics.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. John J. Callaghan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Callaghan practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Knoxville Hospital & Clinics | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Knoxville Hospital & Clinics and 6.2K+ hospitals, with verified contacts in the same login.
Dr. John J. Callaghan is one of 219 orthopedic surgeons in Iowa
Orthopaedic surgery is Dr. Callaghan's primary specialty in the NPI Registry, under taxonomy code 207X00000X. Dr. Callaghan is licensed in Iowa.
Specialties and state licenses
- Orthopaedic surgery, IowaPrimary
Orthopedic surgeons near Dr. Callaghan
Counts of orthopedic 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. John J. Callaghan billed Medicare for 675 services in 2017
CMS data shows 675 Medicare services from Dr. Callaghan across 9 procedure codes in 2017. Medicare paid $87,069 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Callaghan's Medicare services by type, 2016 to 2017
- 2016
- 2017
- Office and hospital visits
- 2016: 6172017: 5599%
- Surgery
- 2016: 1362017: 11615%
Dr. Callaghan compared with the Iowa median for orthopedic surgeons, 2017
- Dr. Callaghan
- Iowa median
- Medicare services
- 675vs 1,02634% below
- Part D claims
- 15vs 10085% below
Medians across 221 orthopedic surgeons in Iowa with Dmand AI profiles that report each measure.
Dr. Callaghan's most billed Medicare procedure codes, 2017
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. Callaghan?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Callaghan and other orthopedic surgeons in Iowa.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John J. Callaghan's patients have a median age of 5
Across all payers, Dmand AI patient panel data puts Dr. Callaghan's median patient age at 5, with 50% women.
Dr. Callaghan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 5
Patient panel by sex, all payers
- Women50%
- Men50%
Source: Dmand AI Patient Panel Data
Dr. John J. Callaghan wrote 15 Medicare Part D claims in 2017
In 2017, Dr. Callaghan wrote 15 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $30 in total drug cost. In 2016, CMS named 59 claims across 4 drugs.
Dr. Callaghan's most prescribed drugs by claims, 2017
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, 2016 to 2017
- 2016
- 2017
- Claims for drugs CMS names
- 2016: 592017: 1575%
Drugs named by CMS: 1 in 2017, 4 in 2016.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. John J. Callaghan received $36,571,244 in industry payments from 2016 to 2025
CMS Open Payments shows 368 general payments to Dr. Callaghan from 7 drug and device companies from 2016 to 2025. Royalties and licenses make up the largest share, 99% of the total. DePuy Synthes Sales Inc. paid the most, $36,455,919.
General payments to Dr. Callaghan by program year, 2016 to 2025
General payments to Dr. Callaghan by kind, 2016 to 2025
- Royalties and licenses$36,191,69899%
- Consulting fees$329,3091%
- Travel and lodging$47,0670%
- Food and beverage$3,1700%
Companies that paid Dr. Callaghan the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. John J. Callaghan'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 Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. John J. Callaghan
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. John J. Callaghan's NPI number?
Dr. John J. Callaghan's NPI number is 1154316636. It was assigned on September 12, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. John J. Callaghan?
Dr. John J. Callaghan is an orthopedic surgeon in Knoxville, Iowa. The primary specialty in the NPI Registry is Orthopaedic Surgery Physician (taxonomy code 207X00000X).
Where does Dr. John J. Callaghan practice?
Dr. Callaghan practices at 1002 South Lincoln Street, Knoxville, IA 50138. Dr. Callaghan's primary practice is Knoxville Hospital & Clinics in Knoxville, Iowa, part of Knoxville Hospital & Clinics.
What is Dr. John J. Callaghan's office phone number?
The practice phone on file for Dr. Callaghan is (641) 842-2151.
What is Dr. John J. Callaghan's medical license number?
Dr. Callaghan holds Iowa license 21696.
Which hospitals is Dr. John J. Callaghan affiliated with?
Dr. Callaghan practices at Knoxville Hospital & Clinics in Knoxville, Iowa.
Does Dr. John J. Callaghan accept Medicare?
Yes. CMS data shows Dr. Callaghan billed Medicare for 675 services in 2017.
What services does Dr. John J. Callaghan bill to Medicare?
In 2017, Dr. Callaghan's most billed Medicare services were office visit, established patient (99213), office visit, established patient (99214) and surgery: bones and joints (20610).
What drugs does Dr. John J. Callaghan prescribe most?
In 2017 Medicare Part D data, Dr. Callaghan's most prescribed drugs by claims were Amoxicillin.
Has Dr. John J. Callaghan received payments from drug or device companies?
CMS Open Payments shows $36,571,244 in general payments to Dr. Callaghan from 7 companies from 2016 to 2025. The largest total came from DePuy Synthes Sales Inc.
How long has Dr. John J. Callaghan been practicing?
Dr. Callaghan's NPI was assigned in 2005.
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