William D. Kessler, M.D.
Hospitalist Physician · Joplin, MO
William D. Kessler, M.D. is a hospitalist physician with a practice address in Joplin, Missouri, and NPI 1265421739, issued on Oct 18, 2005. Check the license (Missouri R7G11, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- William D. Kessler
- Credential
- M.D.
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License number
- R7G11 MO
Self-reported in NPPES; status is on the state search - Practice location
- 100 Mercy Way, Joplin, MO 64804
- Phone
- (417) 781-2727
- Enumerated
- Oct 18, 2005
- Record last updated
- Apr 15, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (417) 208-3625
- Medicaid ID
- 202443404 MO
- Medicare enrollment
- Enrolled (PECOS I20090114000295); accepts Medicare assignment
- Medical or professional school
- Southern Illinois University School Of Medicine, 1984
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 930 in Missouri → Look up another NPI →
Also registered at 100 Mercy Way
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Muhannad Abdin, PA-CPhysician Assistant1528859808
- Riley AbernathyStudent in an Organized Health Care Education/Training Program1679491013
- Fayzeh Abu-RumailehPharmacist1952183261
- Syed Ahmed, M.D.Pulmonary Disease Physician1245273150
- Kevin Alban, M.D.Internal Medicine Physician1740554914
- Cayden Alexander, RDRegistered Dietitian1417739525
Verify William D. Kessler in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMissouri Board of Registration for the Healing Arts
Search for license R7G11Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
46% fewer Medicare Part D claims than the average hospitalist physician in 2024
280 Medicare Part D claims for 106 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. 18 claims were for opioids.
Most prescribed
- Valsartan26 claims
- Prednisone17 claims
- Doxycycline Hyclate12 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: $45.21
2 payments; by number, the most common kind was food and beverage; the largest payer was Regeneron Healthcare Solutions, Inc. The 7,324 providers of this specialty with any payment received $494.84 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
- Mercy Clinic Joplin LLCJoplin, MO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William D. Kessler among 930 hospitalist physician records in Missouri
William D. Kessler, M.D. is one of 930 hospitalist physician records with a practice address in Missouri. 87% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 98% newer
- In a Medicare fileYes · 87% of these records are
- In the CMS Doctors and Clinicians fileYes · 77% of these records are
- Graduated1984 · median 2014 among the 715 with a school on file
- Record last updated2016 · 25% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
45 hospitalist physician records list a practice address in Joplin
They are 45 of the 2,443 NPPES records with a practice address in Joplin, and 930 hospitalist physician records in Missouri.
All 930 in Missouri → Every provider in Joplin → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- David Buvat, MDJoplin, MO 648041518012574
- Rodney Donham, DOJoplin, MO 648041730155102
- Shazia Habib, MDJoplin, MO 648041760414254
- Constance Hardy, M.D.Joplin, MO 648041568409829
- Dianne Hardy, MDJoplin, MO 648041376765842
- Julie Hoffmann Janisch, DOJoplin, MO 648041316900921
- Robert McNab, D.O.Joplin, MO 648041225032618
- Sandip Naik, MDJoplin, MO 648041003858747
Common questions
What is William D. Kessler, M.D.'s NPI number?
William D. Kessler, M.D.'s National Provider Identifier (NPI) is 1265421739, issued on Oct 18, 2005. An NPI identifies a provider in billing; it is not a license.
Where is William D. Kessler, M.D. located?
The NPPES record lists a practice address at 100 Mercy Way, Joplin, MO, 64804. Phone: (417) 781-2727. Providers update this record themselves, so call before visiting.
How can I verify William D. Kessler, M.D.'s license?
NPPES lists Missouri license number R7G11, as entered by the provider. Search the Missouri Board of Registration for the Healing Arts at https://www.fsmb.org/contact-a-state-medical-board/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does William D. Kessler, M.D. prescribe under Medicare Part D?
In 2024, William D. Kessler, M.D. had 280 Medicare Part D claims for 106 beneficiaries; the average among hospitalist physician prescribers was 521. 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.