NPPES file of Aug 9, 2026

William S. Cassel, MD

Surgery Physician · Muncie, IN

William S. Cassel, MD is a surgery physician with a practice address in Muncie, Indiana, and NPI 1689640450, issued on Feb 23, 2006. Check the license (Indiana 01047731A, as entered in NPPES) on the Medical Licensing Board of Indiana; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1689640450
Name
William S. Cassel
Credential
MD
Primary taxonomy
Surgery Physician 208600000X
License number
01047731A IN
Self-reported in NPPES; status is on the state search
Practice location
2525 W University Ave, Muncie, IN 47303
Phone
(765) 289-6381
Enumerated
Feb 23, 2006
Record last updated
Dec 28, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(765) 281-2620
Medicaid ID
200159690 IN
Medicare enrollment
Enrolled (PECOS I20041112001106); accepts Medicare assignment
Medical or professional school
Emory University School Of Medicine, 1984
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 2525 W University Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Ahmed Al Qady, MD, MBBCHInternal Medicine Physician1093393787
  2. Yusuf Alalwan, MDAdvanced Heart Failure and Transplant Cardiology Physician1932690096
  3. Hamza Ansari, MDInterventional Cardiology Physician1548524812
  4. Prakash Bhoopalam, M.DPediatrics Physician1942208905
  5. Susan Borregard, P.A.Surgical Physician Assistant1184624801
  6. Jennifer Bow, NPAdult Health Nurse Practitioner1144451014

Verify William S. Cassel in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Licensing Board of Indiana
    Search for license 01047731A
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Indiana license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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28% fewer Medicare Part D claims than the average surgery physician in 2024

106 Medicare Part D claims for 54 beneficiaries, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D. 26 claims were for opioids.

  1. William Cassel106
  2. Specialty average147

Most prescribed

  1. Hydrocodone-Acetaminophen24 claims
  2. Clopidogrel20 claims
  3. Cilostazol14 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.

The MIPS final score for 2023 (Medicare payment program): 88.6 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score52.6
  2. Costout of 100 · 30%93.6
  3. Promoting interoperabilityout of 100 · 25%98.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $180.64

2 payments; by number, the most common kind was food and beverage; the largest payer was Cook Medical LLC. The 17,103 providers of this specialty with any payment received $3,513.80 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. William Cassel$180.64
  2. Specialty average$3,513.80

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 2 group practices

  1. Indiana University Health Ball Memorial Physicians IncMuncie, IN
  2. IU Health Medical Group LLCIndianapolis, IN

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

William S. Cassel among 612 surgery physician records in Indiana

William S. Cassel, MD is one of 612 surgery physician records with a practice address in Indiana. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 16% of them.

  • NPI issued2006 · 16% of these records are older, 52% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 67% of these records are
  • Graduated1984 · median 2004 among the 408 with a school on file
  • Record last updated2020 · 42% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208600000X and a Indiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Surgery Physician providers in Indiana

There are 612 surgery physician records in Indiana.

The 8 surgery physician records with the nearest ZIP codes

  1. Michael Burrell, M.D.Muncie, IN 473031023067816
  2. John Durbin, M.D.Muncie, IN 473031376592436
  3. John Eliades, MDMuncie, IN 473031801861844
  4. Brittany Kern, MDMuncie, IN 473031639583719
  5. Joseph Lopez, M.D.Muncie, IN 473031578908992
  6. Mark Saleem, MDMuncie, IN 473031902009517
  7. Camilo Santiago, MDMuncie, IN 473031124089313
  8. Benjamin Simpson, MDMuncie, IN 473031699207597

Common questions

What is William S. Cassel, MD's NPI number?

William S. Cassel, MD's National Provider Identifier (NPI) is 1689640450, issued on Feb 23, 2006. An NPI identifies a provider in billing; it is not a license.

Where is William S. Cassel, MD located?

The NPPES record lists a practice address at 2525 W University Ave, Muncie, IN, 47303. Phone: (765) 289-6381. Providers update this record themselves, so call before visiting.

How can I verify William S. Cassel, MD's license?

NPPES lists Indiana license number 01047731A, as entered by the provider. Search the Medical Licensing Board of Indiana at https://www.in.gov/pla/professions/physicians-home/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does William S. Cassel, MD prescribe under Medicare Part D?

In 2024, William S. Cassel, MD had 106 Medicare Part D claims for 54 beneficiaries; the average among surgery physician prescribers was 147. Part D covers Medicare prescriptions only.

What is William S. Cassel, MD's MIPS final score?

The 2023 MIPS final score is 88.6 of 100. The average among 454,083 clinicians with a measured score was 83.5.

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.