William Benjamin Workman, D.O.
Internal Medicine Physician · Battle Creek, MI
William Benjamin Workman, D.O. is an internal medicine physician with a practice address in Battle Creek, Michigan, and NPI 1407110257, issued on Jun 26, 2012. Check the license (Michigan 5101019940, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- William Benjamin Workman
- Credential
- D.O.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 5101019940 MI
Self-reported in NPPES; status is on the state search - Practice location
- 2845 Capital Ave SW Ste 302, Battle Creek, MI 49015
- Phone
- (269) 979-6333
- Enumerated
- Jun 26, 2012
- Record last updated
- Nov 27, 2023
- Medicare enrollment
- Enrolled (PECOS I20140416001264); accepts Medicare assignment
- Medical or professional school
- Michigan State University College Of Osteopathic Medicine, 2012
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 5,735 in Michigan → Look up another NPI →
Also registered at 2845 Capital Ave SW Ste 302
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Stephen Ames, DOInternal Medicine Physician1467027805
- Martha Boyer, NPAdult Health Nurse Practitioner1962449793
- Nicole Degraff, PA-CPhysician Assistant1891815411
- Alan Furlan, MDInternal Medicine Physician1962133033
- Miranda Makulski, DOFamily Medicine Physician1164489316
- Leah Markle, LMSWClinical Social Worker1043732407
Verify William Benjamin Workman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 5101019940Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4.6 times the Medicare Part D claims of the average internal medicine physician in 2024
14,682 Medicare Part D claims for 1,000 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 846 claims were for opioids.
Most prescribed
- Levothyroxine Sodium679 claims
- Atorvastatin Calcium605 claims
- Amlodipine Besylate489 claims
- Hydrocodone-Acetaminophen439 claims
- Losartan Potassium417 claims
- Omeprazole417 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: $475.33
32 payments; by number, the most common kind was food and beverage; the largest payer was Pfizer Inc. 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.
2 hospital affiliations
- Bronson Methodist HospitalPortage, MI · Acute Care Hospitals4 of 5 stars
- Bronson Battle Creek HospitalBattle Creek, MI · Acute Care Hospitals3 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
William Benjamin Workman among 5,735 internal medicine physician records in Michigan
William Benjamin Workman, D.O. is one of 5,735 internal medicine physician records with a practice address in Michigan. 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 2012, is newer than 59% of them.
- NPI issued2012 · 59% of these records are older, 39% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2012 · median 2006 among the 3,564 with a school on file
- Record last updated2023 · 54% 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 Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
45 internal medicine physician records list a practice address in Battle Creek
They are 45 of the 2,117 NPPES records with a practice address in Battle Creek, and 5,735 internal medicine physician records in Michigan.
All 5,735 in Michigan → Every provider in Battle Creek → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Christine Anguras, D.O.Battle Creek, MI 490151558473843
- David Cavanagh, M.D.Battle Creek, MI 490151629186085
- Ravi Chadalavada, MDBattle Creek, MI 490151639280662
- Ireneo Diaz, M.D.Battle Creek, MI 490151043321409
- Montie Gould, M.D.Battle Creek, MI 490151184666331
- Mehmet Ismailoglu, M.D.Battle Creek, MI 490151477516557
- Neena Mandavia, M.D.Battle Creek, MI 490151598861288
- Mohammed Mohiuddin, M.D.Battle Creek, MI 490151538266622
Common questions
What is William Benjamin Workman, D.O.'s NPI number?
William Benjamin Workman, D.O.'s National Provider Identifier (NPI) is 1407110257, issued on Jun 26, 2012. An NPI identifies a provider in billing; it is not a license.
Where is William Benjamin Workman, D.O. located?
The NPPES record lists a practice address at 2845 Capital Ave SW Ste 302, Battle Creek, MI, 49015. Phone: (269) 979-6333. Providers update this record themselves, so call before visiting.
How can I verify William Benjamin Workman, D.O.'s license?
NPPES lists Michigan license number 5101019940, as entered by the provider. Search the Michigan Board of Medicine (LARA) at https://aca-prod.accela.com/MILARA/GeneralProperty/PropertyLookUp.aspx?isLicensee=Y&TabName=APO. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does William Benjamin Workman, D.O. prescribe under Medicare Part D?
In 2024, William Benjamin Workman, D.O. had 14,682 Medicare Part D claims for 1,000 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.