Dr. William Benjamin Workman, DO
- Medicare services, 2024
- 1,078
- Medicare patients, 2024
- 366
- Part D claims, 2024
- 14,682
- Hospital affiliations
- 3
- Industry payments
- $5,331
- Practice address
- 601 John Street, Kalamazoo, MI 49007
- Practice phone
- Call (269) 341-6000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Workman's professional email, personal email and mobile number
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Dr. William Benjamin Workman is an internist in Kalamazoo, Michigan
Dr. Workman practices at Bronson Methodist Hospital in Kalamazoo, Michigan, part of Bronson Healthcare Group.
Dr. Workman's NPI, 1407110257, was assigned on June 26, 2012. Dr. Workman graduated from Michigan State University College of Osteopathic Medicine in 2012. Dr. Workman holds Michigan license 5101019940.
- NPI
- 1407110257NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1456583962
- NPI enumeration date
- June 26, 2012
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (269) 341-6000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 40
- Medical school graduation
- 2012
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. William Benjamin Workman practices at Bronson Methodist Hospital in Kalamazoo, Michigan
Dr. Workman's primary practice is Bronson Methodist Hospital, at 601 John Street, Kalamazoo, MI 49007 in Kalamazoo County. The practice phone is (269) 341-6000.
- Bronson Methodist Hospital601 John Street, Kalamazoo, MI 49007 · Kalamazoo CountyPhone(269) 341-6000
Source: Dmand AI Affiliation Data
Dr. William Benjamin Workman is affiliated with 9 sites of care and 3 medical groups
Dr. Workman's primary practice is Bronson Methodist Hospital in Kalamazoo, Michigan, part of Bronson Healthcare Group. Dr. Workman is also affiliated with Bronson Battle Creek Hospital. The medical group on file is Bronson Medical Group. Dmand AI also links Dr. Workman to 1 more hospital, 3 group practices and clinics, 2 home health agencies, 2 medical groups and 1 hospice, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. William Benjamin Workman's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Workman practices, 9 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Bronson Methodist Hospital | Available with a free account |
| +8 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Bronson Healthcare Group and 6.2K+ hospitals, with verified contacts in the same login.
Dr. William Benjamin Workman is one of 4,804 internists in Michigan
Internal medicine is Dr. Workman's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Workman is licensed in Michigan.
Specialties and state licenses
- Internal medicine, MichiganPrimary
Internists near Dr. Workman
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. William Benjamin Workman billed Medicare for 1,078 services in 2024
CMS data shows 1,078 Medicare services from Dr. Workman across 7 procedure codes in 2024, for 366 Medicare patients. Medicare paid $70,500 for them.
Dr. Workman's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 9152024: 68425%
- Other services
- 2023: 3372024: 39417%
- Surgery
- 2023: 272024: 0100%
Where Dr. Workman's Medicare services took place, 2024
- In an office55051%
- In a facility52849%
Dr. Workman compared with the Michigan median for internists, 2024
- Dr. Workman
- Michigan median
- Medicare services
- 1,078vs 4232.5 times
- Medicare patients
- 366vs 1592.3 times
- Part D claims
- 13,656vs 31443.5 times
Medians across 4,524 internists in Michigan with Dmand AI profiles that report each measure.
Dr. Workman's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Workman?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Workman and other internists in Michigan.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. William Benjamin Workman treated 366 Medicare patients in 2024, average age 76
CMS counts 366 Medicare patients who saw Dr. Workman in 2024. The largest group is 65 to 74, with 150 patients. 74% of them have high cholesterol, and 67% have high blood pressure. 4% are also on Medicaid. Their average risk score is 1.44, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Workman's median patient age at 69, with 53% women.
Dr. Workman's Medicare patients by age, 2024
Dr. Workman's Medicare patients by sex, 2024
- Women18651%
- Men18049%
Chronic conditions among Dr. Workman's Medicare patients, 2024
- High cholesterol74%
- High blood pressure67%
- Arthritis49%
- Chronic kidney disease37%
- Mood disorders34%
- Depression33%
- Diabetes30%
- Anxiety22%
Share of Medicare patients with each condition. A patient can have several.
Dr. Workman's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women53%
- Men47%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. William Benjamin Workman wrote 14,682 Medicare Part D claims in 2024
In 2024, Dr. Workman wrote 14,682 Medicare Part D claims for 1,000 patients. 85% of them were for generic drugs. CMS names the drug for 13,656 of them, across 199 drugs with 11 or more claims each, at $1,459,382 in total drug cost. In 2023, CMS named 14,757 claims across 210 drugs.
Dr. Workman's Part D claims by kind of drug, 2024
- Generic12,519 claims85%
- Brand-name2,082 claims14%
- Other81 claims1%
Dr. Workman's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Workman's Part D claims, 2024
- Opioids6%846 of 14,682 claims
- Antibiotics2%283 of 14,682 claims
- Antipsychotics, patients 65 and over0%43 of 14,682 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 14,7572024: 13,6567%
Drugs named by CMS: 199 in 2024, 210 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. William Benjamin Workman offers telehealth to Medicare patients
Dr. Workman accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Workman as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Removal of skin lesions: 1 to 10 procedures (CMS shows small counts as a range)
Skin biopsy: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. William Benjamin Workman received $5,331 in industry payments from 2016 to 2025
CMS Open Payments shows 301 general payments to Dr. Workman from 48 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 91% of the total. Novo Nordisk Inc paid the most, $1,218.
General payments to Dr. Workman by program year, 2016 to 2025
General payments to Dr. Workman by kind, 2016 to 2025
- Food and beverage$4,84291%
- Travel and lodging$4038%
- Education$551%
- Speaker and faculty fees$301%
Companies that paid Dr. Workman the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. William Benjamin Workman graduated from Michigan State University College of Osteopathic Medicine
Dr. Workman graduated from Michigan State University College of Osteopathic Medicine in 2012.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. William Benjamin Workman's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. William Benjamin Workman
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. William Benjamin Workman's NPI number?
Dr. William Benjamin Workman's NPI number is 1407110257. It was assigned on June 26, 2012, and it is active in the NPI Registry.
What kind of doctor is Dr. William Benjamin Workman?
Dr. William Benjamin Workman is an internist in Kalamazoo, Michigan. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. William Benjamin Workman practice?
Dr. Workman practices at 601 John Street, Kalamazoo, MI 49007. Dr. Workman's primary practice is Bronson Methodist Hospital in Kalamazoo, Michigan, part of Bronson Healthcare Group. Dmand AI also links Dr. Workman to 1 hospital, 3 group practices and clinics, 2 home health agencies, 2 medical groups and 1 hospice.
What is Dr. William Benjamin Workman's office phone number?
The practice phone on file for Dr. Workman is (269) 341-6000.
What is Dr. William Benjamin Workman's medical license number?
Dr. Workman holds Michigan license 5101019940.
Which hospitals is Dr. William Benjamin Workman affiliated with?
Dr. Workman practices at Bronson Methodist Hospital in Kalamazoo, Michigan. Dr. Workman is also affiliated with Bronson Battle Creek Hospital. Dmand AI links Dr. Workman to 1 more hospital.
What medical group is Dr. William Benjamin Workman part of?
Dr. Workman is linked to Bronson Medical Group. Dmand AI links Dr. Workman to 2 more medical groups.
Does Dr. William Benjamin Workman accept Medicare?
Yes. CMS data shows Dr. Workman billed Medicare for 1,078 services in 2024, and Dr. Workman accepts Medicare assignment.
Does Dr. William Benjamin Workman offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Workman as offering telehealth services.
How many Medicare patients does Dr. William Benjamin Workman see?
CMS counts 366 Medicare patients who saw Dr. Workman in 2024, with an average age of 76.
Show 5 more questionsShow fewer questions
What services does Dr. William Benjamin Workman bill to Medicare?
In 2024, Dr. Workman's most billed Medicare services were office visit, established patient (99214), medicare service (G0439) and medicare service (G2211).
Where did Dr. William Benjamin Workman go to medical school?
Dr. Workman graduated from Michigan State University College of Osteopathic Medicine in 2012.
What drugs does Dr. William Benjamin Workman prescribe most?
In 2024 Medicare Part D data, Dr. Workman's most prescribed drugs by claims were Levothyroxine Sodium, Atorvastatin Calcium and Amlodipine Besylate.
Has Dr. William Benjamin Workman received payments from drug or device companies?
CMS Open Payments shows $5,331 in general payments to Dr. Workman from 48 companies from 2016 to 2025. The largest total came from Novo Nordisk Inc.
How long has Dr. William Benjamin Workman been practicing?
Dr. Workman graduated from medical school in 2012, 14 years ago.
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