Joseph William Hackler, D.O.
Internal Medicine Physician · Little Rock, AR
Joseph William Hackler, D.O. is an internal medicine physician with a practice address in Little Rock, Arkansas, and NPI 1710151204, issued on Apr 16, 2008. Check the license (Arkansas E-8841, as entered in NPPES) on the Arkansas State Medical Board; the Medicare figures below come from public CMS files.
- Name
- Joseph William Hackler
- Credential
- D.O.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- E-8841 AR
58.002465 OH
Self-reported in NPPES; status is on the state search - Practice location
- 9501 Baptist Health Dr, Little Rock, AR 72205
- Phone
- (501) 227-7596
- Enumerated
- Apr 16, 2008
- Record last updated
- Dec 11, 2014 (not updated in 12 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20141124001942); accepts Medicare assignment
- Medical or professional school
- University Of Oklahoma College Of Medicine, 2007
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 768 in Arkansas → Look up another NPI →
Also registered at 9501 Baptist Health Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sara Bunner, OTR/LOccupational Therapist1164317806
- Courtney ErvinAcute Care Nurse Practitioner1558957951
- Amy Galdamez, MDObstetrics & Gynecology Physician1134361827
- Hayley Miller, PT, DPTPhysical Therapist1427838887
- Ernesto Ruiz-Rodriguez, M.D.Interventional Cardiology Physician1831362300
- Michael Seamon, APNFamily Nurse Practitioner1669747762
Verify Joseph William Hackler in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArkansas State Medical Board
Search for license E-8841Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
18% more Medicare Part D claims than the average internal medicine physician in 2024
3,755 Medicare Part D claims for 369 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Metoprolol Succinate347 claims
- Atorvastatin Calcium316 claims
- Eliquis290 claims
- Furosemide227 claims
- Metoprolol Tartrate183 claims
- Losartan Potassium178 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: $383.11
18 payments; by number, the most common kind was food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. The 50,334 providers of this specialty with any payment received $1,303.06 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
- Baptist HealthMalvern, AR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Joseph William Hackler among 768 internal medicine physician records in Arkansas
Joseph William Hackler, D.O. is one of 768 internal medicine physician records with a practice address in Arkansas. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 46% of them.
- NPI issued2008 · 46% of these records are older, 51% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2007 · median 2010 among the 519 with a school on file
- Record last updated2014 · 50% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Arkansas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
219 internal medicine physician records list a practice address in Little Rock
They are 219 of the 13,172 NPPES records with a practice address in Little Rock, and 768 internal medicine physician records in Arkansas.
All 768 in Arkansas → Every provider in Little Rock → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Brian Bean, M.D.Little Rock, AR 722051003870049
- Eric Delgiacco, M.D.Little Rock, AR 722051285695973
- Raymond Edwards, M.D.Little Rock, AR 722051851371314
- Irol Gray, MDLittle Rock, AR 722051164429981
- Richard Johns, MDLittle Rock, AR 722051144214578
- Rana Kayali, M.D.Little Rock, AR 722051720041577
- Lubna Maruf, M.D.Little Rock, AR 722051336119536
- Solomon Mogbo, M.DLittle Rock, AR 722051083615348
Common questions
What is Joseph William Hackler, D.O.'s NPI number?
Joseph William Hackler, D.O.'s National Provider Identifier (NPI) is 1710151204, issued on Apr 16, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Joseph William Hackler, D.O. located?
The NPPES record lists a practice address at 9501 Baptist Health Dr, Little Rock, AR, 72205. Phone: (501) 227-7596. Providers update this record themselves, so call before visiting.
How can I verify Joseph William Hackler, D.O.'s license?
NPPES lists Arkansas license number E-8841, 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 William Hackler, D.O. prescribe under Medicare Part D?
In 2024, Joseph William Hackler, D.O. had 3,755 Medicare Part D claims for 369 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.