Joseph Hunter Holthoff, M.D., PH.D.
Nephrology Physician · Little Rock, AR
Joseph Hunter Holthoff, M.D., PH.D. is a nephrology physician with a practice address in Little Rock, Arkansas, and NPI 1073932281, issued on Apr 15, 2014. Check the license (Arkansas E-11278, as entered in NPPES) on the Arkansas State Medical Board; the Medicare figures below come from public CMS files.
- Name
- Joseph Hunter Holthoff
- Credential
- M.D., PH.D.
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License number
- E-11278 AR
Self-reported in NPPES; status is on the state search - Practice location
- 4301 W Markham St # 501, Little Rock, AR 72205
- Phone
- (501) 686-1020
- Enumerated
- Apr 15, 2014
- Record last updated
- Aug 27, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (501) 603-1538
- Medicare enrollment
- Enrolled (PECOS I20180626000289); accepts Medicare assignment
- Medical or professional school
- University Of Arkansas College Of Medicine, 2014
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 92 in Arkansas → Look up another NPI →
Also registered at 4301 W Markham St # 501
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Fatima Ayub, MDNephrology Physician1710461546
- Sushma Bhusal, M.D.Nephrology Physician1558625178
- Issa Haddad, MDNephrology Physician1720606510
- Temekis Hampton, APRNFamily Nurse Practitioner1215271176
- Nithin Karakala, MDNephrology Physician1639356827
- Saad Mahmoud, MBBSStudent in an Organized Health Care Education/Training Program1841177664
Verify Joseph Hunter Holthoff in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArkansas State Medical Board
Search for license E-11278Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
54% fewer Medicare Part D claims than the average nephrology physician in 2024
669 Medicare Part D claims for 124 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims.
Most prescribed
- Losartan Potassium109 claims
- Calcitriol56 claims
- Jardiance45 claims
- Bumetanide41 claims
- Nifedipine Er34 claims
- Amlodipine Besylate32 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $63.36
7 payments; by number, the most common kind was education; the largest payer was Travere Therapeutics, Inc. The 8,230 providers of this specialty with any payment received $3,091.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- University OF Arkansas For Medical SciencesLittle Rock, AR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Joseph Hunter Holthoff among 92 nephrology physician records in Arkansas
Joseph Hunter Holthoff, M.D., PH.D. is one of 92 nephrology physician records with a practice address in Arkansas. 86% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 76% of them.
- NPI issued2014 · 76% of these records are older, 22% newer
- In a Medicare fileYes · 86% of these records are
- In the CMS Doctors and Clinicians fileYes · 76% of these records are
- Graduated2014 · median 2003 among the 70 with a school on file
- Record last updated2021 · 67% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a Arkansas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nephrology Physician providers in Arkansas
There are 92 nephrology physician records in Arkansas.
All 92 in Arkansas → Every provider in Little Rock → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- John Arthur, MDLittle Rock, AR 722051003924952
- Gregory Bienvenu, M.D.Little Rock, AR 722051053302893
- Alex David, M.D.Little Rock, AR 722051437140373
- Joel Dworkin, M.D., PHDLittle Rock, AR 722051841270774
- John Heifner, M.D.Little Rock, AR 722051588666895
- Fakhar Ijaz, MDLittle Rock, AR 722051487653820
- Luis Juncos, M.D.Little Rock, AR 722051124092416
- Shane Kimball, D.O.Little Rock, AR 722051396747606
Common questions
What is Joseph Hunter Holthoff, M.D., PH.D.'s NPI number?
Joseph Hunter Holthoff, M.D., PH.D.'s National Provider Identifier (NPI) is 1073932281, issued on Apr 15, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Joseph Hunter Holthoff, M.D., PH.D. located?
The NPPES record lists a practice address at 4301 W Markham St # 501, Little Rock, AR, 72205. Phone: (501) 686-1020. Providers update this record themselves, so call before visiting.
How can I verify Joseph Hunter Holthoff, M.D., PH.D.'s license?
NPPES lists Arkansas license number E-11278, as entered by the provider. Search the Arkansas State Medical Board at https://armedicalboard.adh.arkansas.gov/public/verify/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Joseph Hunter Holthoff, M.D., PH.D. prescribe under Medicare Part D?
In 2024, Joseph Hunter Holthoff, M.D., PH.D. had 669 Medicare Part D claims for 124 beneficiaries; the average among nephrology physician prescribers was 1,465. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.