Dr. Benjamin Duane Humphreys, MD
- Medicare services, 2024
- 101
- Medicare patients, 2024
- 59
- Part D claims, 2024
- 231
- Publications
- 179
- MIPS score, 2024
- 84
- Practice address
- One Barnes-Jewish Hospital Plaza, Saint Louis, MO 63110
- Practice phone
- Call (314) 747-3000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Humphreys' professional email, personal email and mobile number
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Dr. Benjamin Duane Humphreys is a nephrologist in Saint Louis, Missouri
Dr. Humphreys practices at Barnes-Jewish Hospital in Saint Louis, Missouri, part of BJC Health.
Dr. Humphreys' NPI, 1497798169, was assigned on June 13, 2006. Dr. Humphreys graduated from Clvlnd Clinic Lerner College of Med of Case Wstn Rsv University in 2000. Dr. Humphreys holds Missouri license 2015012964.
- NPI
- 1497798169NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8820014624
- NPI enumeration date
- June 13, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (314) 747-3000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 52
- Medical school graduation
- 2000
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Benjamin Duane Humphreys practices at 2 locations in Saint Louis, Missouri
Dr. Humphreys' primary practice is Barnes-Jewish Hospital, at One Barnes-Jewish Hospital Plaza, Saint Louis, MO 63110 in St. Louis City. The practice phone is (314) 747-3000. Dr. Humphreys also practices at Barnes-Jewish Hospital, 1 Barnes Jewish Hospital Plz, Saint Louis, MO 63110.
- Barnes-Jewish HospitalPrimaryOne Barnes-Jewish Hospital Plaza, Saint Louis, MO 63110 · St. Louis CityPhone(314) 747-3000
- Barnes-Jewish Hospital1 Barnes Jewish Hospital Plz, Saint Louis, MO 63110 · Saint Louis CityPhone(314) 747-3000
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Dr. Benjamin Duane Humphreys is affiliated with 2 sites of care and 1 medical group
Dr. Humphreys' primary practice is Barnes-Jewish Hospital in Saint Louis, Missouri, part of BJC Health. The medical group on file is WashU Medicine Psychiatry. Dmand AI also links Dr. Humphreys to 1 more group practice or clinic, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Benjamin Duane Humphreys' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Humphreys practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Barnes-Jewish Hospital | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Benjamin Duane Humphreys is one of 249 nephrologists in Missouri
Nephrology is Dr. Humphreys' primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dr. Humphreys is licensed in Missouri.
Specialties and state licenses
- Nephrology, MissouriPrimary
Nephrologists near Dr. Humphreys
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. Benjamin Duane Humphreys billed Medicare for 101 services in 2024
CMS data shows 101 Medicare services from Dr. Humphreys across 4 procedure codes in 2024, for 59 Medicare patients. Medicare paid $8,262 for them.
Dr. Humphreys' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 442024: 101130%
Where Dr. Humphreys' Medicare services took place, 2024
- In an office3939%
- In a facility6261%
Dr. Humphreys compared with the Missouri median for nephrologists, 2024
- Dr. Humphreys
- Missouri median
- Medicare services
- 101vs 85788% below
- Medicare patients
- 59vs 27178% below
- Part D claims
- 161vs 77979% below
Medians across 240 nephrologists in Missouri with Dmand AI profiles that report each measure.
Dr. Humphreys' 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. Humphreys and other nephrologists in Missouri.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Benjamin Duane Humphreys treated 59 Medicare patients in 2024, average age 70
CMS counts 59 Medicare patients who saw Dr. Humphreys in 2024. The largest group is 65 to 74, with 26 patients. 75% of them have chronic kidney disease, and 75% have high blood pressure. 22% are also on Medicaid. Their average risk score is 4.02, 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. Humphreys' median patient age at 72, with 52% women.
Dr. Humphreys' Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Humphreys' Medicare patients by sex, 2024
- Women2746%
- Men3254%
Chronic conditions among Dr. Humphreys' Medicare patients, 2024
- Chronic kidney disease75%
- High blood pressure75%
- High cholesterol75%
- Diabetes56%
- Arthritis51%
- Ischemic heart disease49%
- Heart failure42%
- Cancer37%
Share of Medicare patients with each condition. A patient can have several.
Dr. Humphreys' 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
- Women52%
- Men48%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Benjamin Duane Humphreys wrote 231 Medicare Part D claims in 2024
In 2024, Dr. Humphreys wrote 231 Medicare Part D claims for 36 patients. 84% of them were for generic drugs. CMS names the drug for 161 of them, across 6 drugs with 11 or more claims each, at $30,052 in total drug cost. In 2023, CMS named 86 claims across 5 drugs.
Dr. Humphreys' Part D claims by kind of drug, 2024
- Generic194 claims84%
- Brand-name37 claims16%
Dr. Humphreys' 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: 862024: 16187%
Drugs named by CMS: 6 in 2024, 5 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. Benjamin Duane Humphreys scored 84 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 84 out of 100 for Dr. Humphreys for performance year 2024, reported as part of a group. Dr. Humphreys accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Humphreys' MIPS scores, performance year 2024
- 84of 100Final score
- 71.6of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 76of 100Cost
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. Benjamin Duane Humphreys has 179 publications on record
Dmand AI links 179 papers to Dr. Humphreys, published from 2006 to 2025. 2024 was the busiest year, with 23. The most frequent topics are Kidney, Acute Kidney Injury and Fibrosis. Dr. Humphreys has published most often in J Am Soc Nephrol. Dr. Humphreys' most frequent co-authors are Andrew Francis Malone, MD, Jeremy Stuart Duffield, MD, PhD and Jeffrey R. Koenitzer, MD.
Dr. Humphreys' papers by year, 2016 to 2025
Topics Dr. Humphreys writes about most
- Kidney
- Acute Kidney Injury
- Fibrosis
- Disease Models, Animal
- Kidney Diseases
- Mice, Inbred C57BL
- Transcriptome
- Gene Expression Profiling
Dr. Humphreys' most frequent co-authors
- Andrew Francis Malone, MD6 shared papers
- Jeremy Stuart Duffield, MD, PhD4 shared papers
- Jeffrey R. Koenitzer, MD4 shared papers
Recent publications by Dr. Humphreys
See who Dr. Humphreys researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Humphreys 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. Benjamin Duane Humphreys received $21,451 in industry payments from 2016 to 2025
CMS Open Payments shows 31 general payments to Dr. Humphreys from 12 drug and device companies from 2016 to 2025. Consulting fees make up the largest share, 63% of the total. Amgen Inc. paid the most, $5,940.
General payments to Dr. Humphreys by program year, 2016 to 2025
General payments to Dr. Humphreys by kind, 2016 to 2025
- Consulting fees$13,49463%
- Speaker and faculty fees$4,00019%
- Travel and lodging$3,00714%
- Food and beverage$9314%
- Education$190%
Companies that paid Dr. Humphreys the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Benjamin Duane Humphreys graduated from Clvlnd Clinic Lerner College of Med of Case Wstn Rsv University
Dr. Humphreys graduated from Clvlnd Clinic Lerner College of Med of Case Wstn Rsv University in 2000.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Benjamin Duane Humphreys'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 Affiliation DataDmand AI Practice 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)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. Benjamin Duane Humphreys
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. Benjamin Duane Humphreys' NPI number?
Dr. Benjamin Duane Humphreys' NPI number is 1497798169. It was assigned on June 13, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Benjamin Duane Humphreys?
Dr. Benjamin Duane Humphreys is a nephrologist in Saint Louis, Missouri. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).
Where does Dr. Benjamin Duane Humphreys practice?
Dr. Humphreys practices at One Barnes-Jewish Hospital Plaza, Saint Louis, MO 63110. Dr. Humphreys also practices at 1 Barnes Jewish Hospital Plz, Saint Louis, MO 63110. Dr. Humphreys' primary practice is Barnes-Jewish Hospital in Saint Louis, Missouri, part of BJC Health. Dmand AI also links Dr. Humphreys to 1 group practice or clinic.
What is Dr. Benjamin Duane Humphreys' office phone number?
The practice phone on file for Dr. Humphreys is (314) 747-3000.
What is Dr. Benjamin Duane Humphreys' medical license number?
Dr. Humphreys holds Missouri license 2015012964.
Which hospitals is Dr. Benjamin Duane Humphreys affiliated with?
Dr. Humphreys practices at Barnes-Jewish Hospital in Saint Louis, Missouri.
What medical group is Dr. Benjamin Duane Humphreys part of?
Dr. Humphreys is linked to WashU Medicine Psychiatry.
Does Dr. Benjamin Duane Humphreys accept Medicare?
Yes. CMS data shows Dr. Humphreys billed Medicare for 101 services in 2024, and Dr. Humphreys accepts Medicare assignment.
What is Dr. Benjamin Duane Humphreys' MIPS score?
Dr. Humphreys' MIPS final score for performance year 2024 is 84 out of 100, reported as part of a group.
How many Medicare patients does Dr. Benjamin Duane Humphreys see?
CMS counts 59 Medicare patients who saw Dr. Humphreys in 2024, with an average age of 70.
Show 7 more questionsShow fewer questions
What services does Dr. Benjamin Duane Humphreys bill to Medicare?
In 2024, Dr. Humphreys' most billed Medicare services were hospital inpatient care (99232), office visit, established patient (99214) and office visit, established patient (99215).
Where did Dr. Benjamin Duane Humphreys go to medical school?
Dr. Humphreys graduated from Clvlnd Clinic Lerner College of Med of Case Wstn Rsv University in 2000.
What drugs does Dr. Benjamin Duane Humphreys prescribe most?
In 2024 Medicare Part D data, Dr. Humphreys' most prescribed drugs by claims were Furosemide, Calcitriol and Jardiance.
Has Dr. Benjamin Duane Humphreys received payments from drug or device companies?
CMS Open Payments shows $21,451 in general payments to Dr. Humphreys from 12 companies from 2016 to 2025. The largest total came from Amgen Inc.
How long has Dr. Benjamin Duane Humphreys been practicing?
Dr. Humphreys graduated from medical school in 2000, 26 years ago.
Does Dr. Benjamin Duane Humphreys do research?
Dmand AI links 179 publications to Dr. Humphreys, published from 2006 to 2025.
Who does Dr. Benjamin Duane Humphreys publish with?
Dr. Humphreys' most frequent co-authors are Andrew Francis Malone, MD (6 shared papers), Jeremy Stuart Duffield, MD, PhD (4 shared papers) and Jeffrey R. Koenitzer, MD (4 shared papers).
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