J Gen Intern Med
Black PeopleGlomerular Filtration Rate
Dr. Duncan B. Johnstone, MD, PhD
NPI1225041544PAC ID4789685827
- Medicare services, 2024
- 455
- Medicare patients, 2024
- 205
- Part D claims, 2024
- 293
- Publications
- 13
- MIPS score, 2024
- 93
- Practice address
- 2790 Clay Edwards Dr, Kansas City, MO 64116
- Practice phone
- Call (816) 781-4422
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Liberty Dialysis
Kansas City, Missouri
Find Dr. Johnstone's professional email, personal email and mobile number
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Dr. Duncan B. Johnstone is a nephrologist in Kansas City, Missouri
Dr. Johnstone practices at Liberty Dialysis in Kansas City, Missouri.
Dr. Johnstone's NPI, 1225041544, was assigned on August 15, 2006. Dr. Johnstone graduated from University of Washington School of Medicine in 2001. Dr. Johnstone holds Kansas license 04-47576.
NPI and contact details
- NPI
- 1225041544NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4789685827
- NPI enumeration date
- August 15, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (816) 781-4422
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 51
- Medical school graduation
- 2001
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Duncan B. Johnstone practices at Liberty Dialysis in Kansas City, Missouri
Dr. Johnstone's primary practice is Liberty Dialysis, at 2790 Clay Edwards Dr, Kansas City, MO 64116 in Clay County. The practice phone is (816) 781-4422.
- Liberty Dialysis2790 Clay Edwards Dr, Kansas City, MO 64116 · Clay CountyPhone(816) 781-4422
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Duncan B. Johnstone is affiliated with 4 sites of care and 2 medical groups
Dr. Johnstone's primary practice is Liberty Dialysis in Kansas City, Missouri. Dr. Johnstone is also affiliated with The University of Kansas Hospital. The medical group on file is Kansas University Physicians. Dmand AI also links Dr. Johnstone to 1 more hospital, 1 group practice or clinic and 1 medical group, each named with a free account.
Liberty DialysisPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Duncan B. Johnstone's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Johnstone practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Liberty Dialysis | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Duncan B. Johnstone is one of 249 nephrologists in Missouri
Nephrology is Dr. Johnstone's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dmand AI has Dr. Johnstone's licenses on file in 2 states: Kansas and Pennsylvania.
Specialties and state licenses
- Nephrology, KansasPrimary
- Pennsylvania license
Nephrologists near Dr. Johnstone
Counts of nephrologists 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. Duncan B. Johnstone billed Medicare for 455 services in 2024
CMS data shows 455 Medicare services from Dr. Johnstone across 12 procedure codes in 2024, for 205 Medicare patients. Medicare paid $46,110 for them.
Medicare services, 2024455
Medicare patients205
Paid by Medicare$46,110
Procedure codes12
Dr. Johnstone's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3422024: 38813%
- Tests and treatments
- 2023: 852024: 4745%
- Other services
- 2023: 02024: 20
Where Dr. Johnstone's Medicare services took place, 2024
- In an office317%
- In a facility42493%
Dr. Johnstone compared with the Missouri median for nephrologists, 2024
- Dr. Johnstone
- Missouri median
- Medicare services
- 455vs 85747% below
- Medicare patients
- 205vs 27124% below
- Part D claims
- 193vs 77975% below
Medians across 240 nephrologists in Missouri with Dmand AI profiles that report each measure.
Dr. Johnstone'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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Johnstone and other nephrologists in Missouri.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Duncan B. Johnstone treated 205 Medicare patients in 2024, average age 69
CMS counts 205 Medicare patients who saw Dr. Johnstone in 2024. The largest group is 65 to 74, with 84 patients. 75% of them have chronic kidney disease, and 75% have high blood pressure. 24% are also on Medicaid. Their average risk score is 5.19, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Johnstone's median patient age at 72, with 48% women.
Medicare patients, 2024205
Average age69
Average risk score5.19
Also on Medicaid24%
Dr. Johnstone's Medicare patients by age, 2024
Dr. Johnstone's Medicare patients by sex, 2024
- Women8642%
- Men11958%
Chronic conditions among Dr. Johnstone's Medicare patients, 2024
- Chronic kidney disease75%
- High blood pressure75%
- High cholesterol75%
- Diabetes63%
- Arthritis61%
- Ischemic heart disease57%
- Heart failure51%
- Mood disorders38%
Share of Medicare patients with each condition. A patient can have several.
Dr. Johnstone's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 72
Patient panel by sex, all payers
- Women48%
- Men52%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Duncan B. Johnstone wrote 293 Medicare Part D claims in 2024
In 2024, Dr. Johnstone wrote 293 Medicare Part D claims for 77 patients. 87% of them were for generic drugs. CMS names the drug for 193 of them, across 9 drugs with 11 or more claims each, at $13,475 in total drug cost. In 2023, CMS named 204 claims across 11 drugs.
Part D claims, 2024293
Drugs named by CMS9
Total drug cost$13,475
Part D patients77
Dr. Johnstone's Part D claims by kind of drug, 2024
- Generic255 claims87%
- Brand-name38 claims13%
Dr. Johnstone'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: 2042024: 1935%
Drugs named by CMS: 9 in 2024, 11 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. Duncan B. Johnstone scored 93 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 93 out of 100 for Dr. Johnstone for performance year 2024, reported through an alternative payment model (APM). Dr. Johnstone accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Johnstone as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Johnstone's MIPS scores, performance year 2024
- 93of 100Final score
- 77of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Duncan B. Johnstone has 13 publications on record
Dmand AI links 13 papers to Dr. Johnstone, published from 2011 to 2022. 2011 was the busiest year, with 3. The most frequent topics are Podocytes, Glomerulosclerosis, Focal Segmental and Cell Line. Dr. Johnstone has published most often in PLoS One. Dr. Johnstone's most frequent co-authors are Laura H. Mariani, MD, John R. Sedor, MD and Puneet Garg, MD.
Papers13
Years published2011 to 2022
Dr. Johnstone's papers by year, 2011 to 2022
Topics Dr. Johnstone writes about most
- Podocytes
- Glomerulosclerosis, Focal Segmental
- Cell Line
- Kidney Diseases
- Kidney Glomerulus
- Mice, Inbred C57BL
- Mice, Knockout
- Disease Models, Animal
Dr. Johnstone's most frequent co-authors
Recent publications by Dr. Johnstone
BiopsyGlomerulonephritis, IGAGlomerulonephritis, Membranous
Dis Model Mech
AutoantibodiesAutoantigensAutoimmunity
AcidosisAnion Exchange Protein 1, ErythrocyteHomeostasis
See who Dr. Johnstone researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Johnstone works with, so you can find a warm path to the right nephrologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Duncan B. Johnstone received $4,137 in industry payments from 2016 to 2019
CMS Open Payments shows 11 general payments to Dr. Johnstone from 1 drug or device company from 2016 to 2019. Consulting fees make up the largest share, 73% of the total. Travere Therapeutics, Inc. paid the most, $4,137. It also lists 1 research payment totaling $48 in 2016.
General payments to Dr. Johnstone by program year, 2016 to 2019
General payments to Dr. Johnstone by kind, 2016 to 2019
$4.1Kin total
- Consulting fees$3,00073%
- Travel and lodging$83720%
- Food and beverage$3007%
Companies that paid Dr. Johnstone the most, 2016 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Duncan B. Johnstone graduated from University of Washington School of Medicine
Dr. Johnstone graduated from University of Washington School of Medicine in 2001.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Duncan B. Johnstone'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. Duncan B. Johnstone
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. Duncan B. Johnstone's NPI number?
Dr. Duncan B. Johnstone's NPI number is 1225041544. It was assigned on August 15, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Duncan B. Johnstone?
Dr. Duncan B. Johnstone is a nephrologist in Kansas City, Missouri. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).
Where does Dr. Duncan B. Johnstone practice?
Dr. Johnstone practices at 2790 Clay Edwards Dr, Kansas City, MO 64116. Dr. Johnstone's primary practice is Liberty Dialysis in Kansas City, Missouri. Dmand AI also links Dr. Johnstone to 1 hospital, 1 group practice or clinic and 1 medical group.
What is Dr. Duncan B. Johnstone's office phone number?
The practice phone on file for Dr. Johnstone is (816) 781-4422.
What is Dr. Duncan B. Johnstone's medical license number?
Dr. Johnstone holds Kansas license 04-47576, one of the licenses on file in 2 states.
Which states has Dr. Duncan B. Johnstone been licensed in?
Dmand AI has state licenses on file for Dr. Johnstone in Kansas and Pennsylvania.
Which hospitals is Dr. Duncan B. Johnstone affiliated with?
Dr. Johnstone is affiliated with The University of Kansas Hospital. Dmand AI links Dr. Johnstone to 1 more hospital.
What medical group is Dr. Duncan B. Johnstone part of?
Dr. Johnstone is linked to Kansas University Physicians. Dmand AI links Dr. Johnstone to 1 more medical group.
Does Dr. Duncan B. Johnstone accept Medicare?
Yes. CMS data shows Dr. Johnstone billed Medicare for 455 services in 2024, and Dr. Johnstone accepts Medicare assignment.
Does Dr. Duncan B. Johnstone offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Johnstone as offering telehealth services.
Show 9 more questionsShow fewer questions
What is Dr. Duncan B. Johnstone's MIPS score?
Dr. Johnstone's MIPS final score for performance year 2024 is 93 out of 100, reported through an alternative payment model (APM).
How many Medicare patients does Dr. Duncan B. Johnstone see?
CMS counts 205 Medicare patients who saw Dr. Johnstone in 2024, with an average age of 69.
What services does Dr. Duncan B. Johnstone bill to Medicare?
In 2024, Dr. Johnstone's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99232) and office visit, established patient (99215).
Where did Dr. Duncan B. Johnstone go to medical school?
Dr. Johnstone graduated from University of Washington School of Medicine in 2001.
What drugs does Dr. Duncan B. Johnstone prescribe most?
In 2024 Medicare Part D data, Dr. Johnstone's most prescribed drugs by claims were Famotidine, Amlodipine Besylate and Losartan Potassium.
Has Dr. Duncan B. Johnstone received payments from drug or device companies?
CMS Open Payments shows $4,137 in general payments to Dr. Johnstone from 1 company from 2016 to 2019. The largest total came from Travere Therapeutics, Inc.
How long has Dr. Duncan B. Johnstone been practicing?
Dr. Johnstone graduated from medical school in 2001, 25 years ago.
Does Dr. Duncan B. Johnstone do research?
Dmand AI links 13 publications to Dr. Johnstone, published from 2011 to 2022.
Who does Dr. Duncan B. Johnstone publish with?
Dr. Johnstone's most frequent co-authors are Laura H. Mariani, MD (2 shared papers), John R. Sedor, MD (2 shared papers) and Puneet Garg, MD (1 shared paper).
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