Dr. Joseph Hunter Holthoff, MD, PhD

  • Little Rock, AR
  • Nephrologist
NPI1073932281PAC ID3678890969
Medicare services, 2024
418
Medicare patients, 2024
193
Part D claims, 2024
669
Publications
11
Hospital affiliations
1
Practice address
4301 West Markham Street Mail Slot 612, Little Rock, AR 72205
Practice phone
Call (501) 686-5000
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

UAMS Medical Center

Hospital · Little Rock, Arkansas

See all 3 affiliations

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Dr. Joseph Hunter Holthoff is a nephrologist in Little Rock, Arkansas

Dr. Holthoff practices at UAMS Medical Center in Little Rock, Arkansas, part of University of Arkansas for Medical Sciences.

Dr. Holthoff's NPI, 1073932281, was assigned on April 15, 2014. Dr. Holthoff graduated from University of Arkansas College of Medicine in 2014. Dr. Holthoff holds Arkansas license E-11278.

NPI and contact details
Medicare PAC ID
3678890969
NPI enumeration date
April 15, 2014
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(501) 686-5000
Professional email
Get email
Personal email
Get email
Mobile number
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Sex
Male
Estimated age
38
Medical school graduation
2014

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

Dr. Joseph Hunter Holthoff practices at UAMS Medical Center in Little Rock, Arkansas

Dr. Holthoff's primary practice is UAMS Medical Center, at 4301 West Markham Street Mail Slot 612, Little Rock, AR 72205 in Pulaski County. The practice phone is (501) 686-5000.

  • UAMS Medical Center
    4301 West Markham Street Mail Slot 612, Little Rock, AR 72205 · Pulaski CountyPhone(501) 686-5000

Source: Dmand AI Affiliation Data

Dr. Joseph Hunter Holthoff is affiliated with 1 site of care and 2 medical groups

Dr. Holthoff's primary practice is UAMS Medical Center in Little Rock, Arkansas, part of University of Arkansas for Medical Sciences. The medical group on file is UAMS - University of Arkansas for Medical Sciences. Dmand AI also links Dr. Holthoff to 1 more medical group, named with a free account.

See all 3 affiliations for Dr. Holthoff

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

Dmand AI tracks the EHR system at Dr. Joseph Hunter Holthoff's practice

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

EHR by site
SiteEHR vendor and product
UAMS Medical CenterAvailable with a free account
+1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Joseph Hunter Holthoff is one of 78 nephrologists in Arkansas

Nephrology is Dr. Holthoff's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dr. Holthoff is licensed in Arkansas.

Specialties and state licenses

  • Nephrology, ArkansasPrimaryLicense E-11278 · taxonomy 207RN0300X

Nephrologists near Dr. Holthoff

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. Joseph Hunter Holthoff billed Medicare for 418 services in 2024

CMS data shows 418 Medicare services from Dr. Holthoff across 10 procedure codes in 2024, for 193 Medicare patients. Medicare paid $25,078 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2024418
Medicare patients193
Paid by Medicare$25,078
Procedure codes10

Dr. Holthoff's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 1742024: 27960%
Other services
2023: 02024: 105
Tests and treatments
2023: 02024: 34

Dr. Holthoff compared with the Arkansas median for nephrologists, 2024

  • Dr. Holthoff
  • Arkansas median
Medicare services
418vs 1,28467% below
Medicare patients
193vs 35846% below
Part D claims
513vs 73230% below

Medians across 82 nephrologists in Arkansas with Dmand AI profiles that report each measure.

Dr. Holthoff'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.

See all procedures by Dr. Holthoff

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Joseph Hunter Holthoff treated 193 Medicare patients in 2024, average age 71

CMS counts 193 Medicare patients who saw Dr. Holthoff 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. 23% are also on Medicaid. Their average risk score is 3.57, 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. Holthoff's median patient age at 69, with 56% women.

Medicare patients, 2024193
Average age71
Average risk score3.57
Also on Medicaid23%

Dr. Holthoff's Medicare patients by age, 2024

Dr. Holthoff's Medicare patients by sex, 2024

  • Women9449%
  • Men9951%

Chronic conditions among Dr. Holthoff's Medicare patients, 2024

  1. Chronic kidney disease75%
  2. High blood pressure75%
  3. High cholesterol75%
  4. Diabetes57%
  5. Heart failure51%
  6. Arthritis47%
  7. Ischemic heart disease43%
  8. Mood disorders32%

Share of Medicare patients with each condition. A patient can have several.

Dr. Holthoff'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

  • Women56%
  • Men44%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Joseph Hunter Holthoff wrote 669 Medicare Part D claims in 2024

In 2024, Dr. Holthoff wrote 669 Medicare Part D claims for 124 patients. 89% of them were for generic drugs. CMS names the drug for 513 of them, across 17 drugs with 11 or more claims each, at $44,679 in total drug cost. In 2023, CMS named 396 claims across 14 drugs.

Part D claims, 2024669
Drugs named by CMS17
Total drug cost$44,679
Part D patients124

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

  • Generic598 claims89%
  • Brand-name71 claims11%

Dr. Holthoff'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. Holthoff's Part D claims, 2024

  • Antibiotics3%17 of 669 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: 3962024: 51330%

Drugs named by CMS: 17 in 2024, 14 in 2023.

See all prescribing by Dr. Holthoff

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

How Dr. Joseph Hunter Holthoff takes part in Medicare

Dr. Holthoff accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

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Dr. Joseph Hunter Holthoff has 11 publications on record

Dmand AI links 11 papers to Dr. Holthoff, published from 2011 to 2025. 2011 was the busiest year, with 4. The most frequent topics are Acute Kidney Injury, Kidney and Mice, Inbred C57BL. Dr. Holthoff has published most often in Am J Physiol Renal Physiol. Dr. Holthoff's most frequent co-authors are John M. Arthur, MD, Luis A. Juncos, MD and Nithin Karakala, MD.

Papers11
Years published2011 to 2025

Dr. Holthoff's papers by year, 2011 to 2025

Topics Dr. Holthoff writes about most

  • Acute Kidney Injury
  • Kidney
  • Mice, Inbred C57BL
  • Sepsis
  • Blood Pressure
  • Disease Models, Animal
  • Glomerular Filtration Rate
  • Microcirculation

Dr. Holthoff's most frequent co-authors

Recent publications by Dr. Holthoff

See all 11 publications and co-authors

See who Dr. Holthoff researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Holthoff works with, so you can find a warm path to the right nephrologists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Joseph Hunter Holthoff received $267 in industry payments from 2023 to 2025

CMS Open Payments shows 10 general payments to Dr. Holthoff from 2 drug and device companies from 2023 to 2025. Entertainment make up the largest share, 75% of the total. Quanta Dialysis Technologies Inc paid the most, $199.

General payments to Dr. Holthoff by program year, 2023 to 2025

General payments to Dr. Holthoff by kind, 2023 to 2025

$267in total
  • Entertainment$19975%
  • Education$6825%

Companies that paid Dr. Holthoff the most, 2023 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Holthoff

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

Dr. Joseph Hunter Holthoff graduated from University of Arkansas College of Medicine

Dr. Holthoff graduated from University of Arkansas College of Medicine in 2014.

  1. Medical schoolUniversity of Arkansas College of Medicine

Source: Dmand AI Professional Profile Data

Sources for Dr. Joseph Hunter Holthoff'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 services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
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)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
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. Joseph Hunter Holthoff

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. Joseph Hunter Holthoff's NPI number?

Dr. Joseph Hunter Holthoff's NPI number is 1073932281. It was assigned on April 15, 2014, and it is active in the NPI Registry.

What kind of doctor is Dr. Joseph Hunter Holthoff?

Dr. Joseph Hunter Holthoff is a nephrologist in Little Rock, Arkansas. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).

Where does Dr. Joseph Hunter Holthoff practice?

Dr. Holthoff practices at 4301 West Markham Street Mail Slot 612, Little Rock, AR 72205. Dr. Holthoff's primary practice is UAMS Medical Center in Little Rock, Arkansas, part of University of Arkansas for Medical Sciences. Dmand AI also links Dr. Holthoff to 1 medical group.

What is Dr. Joseph Hunter Holthoff's office phone number?

The practice phone on file for Dr. Holthoff is (501) 686-5000.

What is Dr. Joseph Hunter Holthoff's medical license number?

Dr. Holthoff holds Arkansas license E-11278.

Which hospitals is Dr. Joseph Hunter Holthoff affiliated with?

Dr. Holthoff practices at UAMS Medical Center in Little Rock, Arkansas.

What medical group is Dr. Joseph Hunter Holthoff part of?

Dr. Holthoff is linked to UAMS - University of Arkansas for Medical Sciences. Dmand AI links Dr. Holthoff to 1 more medical group.

Does Dr. Joseph Hunter Holthoff accept Medicare?

Yes. CMS data shows Dr. Holthoff billed Medicare for 418 services in 2024, and Dr. Holthoff accepts Medicare assignment.

How many Medicare patients does Dr. Joseph Hunter Holthoff see?

CMS counts 193 Medicare patients who saw Dr. Holthoff in 2024, with an average age of 71.

What services does Dr. Joseph Hunter Holthoff bill to Medicare?

In 2024, Dr. Holthoff's most billed Medicare services were medicare service (G2211), office visit, established patient (99214) and hospital inpatient care (99233).

Show 6 more questionsShow fewer questions

Where did Dr. Joseph Hunter Holthoff go to medical school?

Dr. Holthoff graduated from University of Arkansas College of Medicine in 2014.

What drugs does Dr. Joseph Hunter Holthoff prescribe most?

In 2024 Medicare Part D data, Dr. Holthoff's most prescribed drugs by claims were Losartan Potassium, Calcitriol and Jardiance.

Has Dr. Joseph Hunter Holthoff received payments from drug or device companies?

CMS Open Payments shows $267 in general payments to Dr. Holthoff from 2 companies from 2023 to 2025. The largest total came from Quanta Dialysis Technologies Inc.

How long has Dr. Joseph Hunter Holthoff been practicing?

Dr. Holthoff graduated from medical school in 2014, 12 years ago.

Does Dr. Joseph Hunter Holthoff do research?

Dmand AI links 11 publications to Dr. Holthoff, published from 2011 to 2025.

Who does Dr. Joseph Hunter Holthoff publish with?

Dr. Holthoff's most frequent co-authors are John M. Arthur, MD (3 shared papers), Luis A. Juncos, MD (3 shared papers) and Nithin Karakala, MD (3 shared papers).

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