William Slager
- Medicare patients, 2024
- 51
- Part D claims, 2024
- 1,298
- Hospital affiliations
- 3
- Medical groups
- 2
- State license
- 1
- Practice address
- 220 Cherry SE St, Grand Rapids, MI 49503
- Practice phone
- Call (616) 685-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Trinity Health Medical Group
Grand Rapids, Michigan
Find William Slager's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
William Slager is a physician assistant in Grand Rapids, Michigan
William Slager practices at Trinity Health Medical Group in Grand Rapids, Michigan.
William Slager's NPI, 1902360605, was assigned on January 27, 2019. William Slager holds Michigan license 5601008991.
- NPI
- 1902360605NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0941548523
- NPI enumeration date
- January 27, 2019
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (616) 685-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 34
- Medical school graduation
- 2018
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
William Slager practices at Trinity Health Medical Group in Grand Rapids, Michigan
William Slager's primary practice is Trinity Health Medical Group, at 220 Cherry SE St, Grand Rapids, MI 49503 in Kent County. The practice phone is (616) 685-5000.
- Trinity Health Medical Group220 Cherry SE St, Grand Rapids, MI 49503 · Kent CountyPhone(616) 685-5000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
William Slager is affiliated with 4 sites of care and 2 medical groups
William Slager's primary practice is Trinity Health Medical Group in Grand Rapids, Michigan. William Slager is also affiliated with Corewell Health Grand Rapids Hospitals - Butterworth. The medical group on file is Trinity Health Medical Group. Dmand AI also links William Slager to 2 more hospitals and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at William Slager's practice
Dmand AI tracks the electronic health record (EHR) system at each site where William Slager practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Trinity Health Medical Group | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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William Slager is one of 5,857 physician assistants in Michigan
Physician assistant is William Slager's primary specialty in the NPI Registry, under taxonomy code 363A00000X. William Slager is licensed in Michigan.
Specialties and state licenses
- Physician assistant, MichiganPrimary
Physician assistants near William Slager
Counts of physician assistants 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
William Slager treated 51 Medicare patients in 2024, average age 59
CMS counts 51 Medicare patients who saw William Slager in 2024. The largest group is under 65, with 28 patients. 63% of them have high blood pressure, and 61% have high cholesterol. 37% are also on Medicaid. Their average risk score is 1.14, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts William Slager's median patient age at 72, with 62% women.
William Slager's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
William Slager's Medicare patients by sex, 2024
- Women3365%
- Men1835%
Chronic conditions among William Slager's Medicare patients, 2024
- High blood pressure63%
- High cholesterol61%
- Arthritis57%
- Mood disorders47%
- Anxiety43%
- Depression37%
Share of Medicare patients with each condition. A patient can have several.
William Slager's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 72
Patient panel by sex, all payers
- Women62%
- Men38%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
William Slager wrote 1,298 Medicare Part D claims in 2024
In 2024, William Slager wrote 1,298 Medicare Part D claims for 194 patients. 68% of them were for generic drugs.
William Slager's Part D claims by kind of drug, 2024
- Generic882 claims68%
- Brand-name and other416 claims32%
Drug classes CMS tracks in William Slager's Part D claims, 2024
- Opioids1%12 of 1,298 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How William Slager takes part in Medicare
William Slager accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Sources for William Slager'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation DataDmand AI Org Hierarchy Data |
| 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 (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) |
| 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 William Slager
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is William Slager's NPI number?
William Slager's NPI number is 1902360605. It was assigned on January 27, 2019, and it is active in the NPI Registry.
What does William Slager specialize in?
William Slager is a physician assistant in Grand Rapids, Michigan. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does William Slager practice?
William Slager practices at 220 Cherry SE St, Grand Rapids, MI 49503. William Slager's primary practice is Trinity Health Medical Group in Grand Rapids, Michigan. Dmand AI also links William Slager to 2 hospitals and 1 medical group.
What is William Slager's office phone number?
The practice phone on file for William Slager is (616) 685-5000.
What is William Slager's medical license number?
William Slager holds Michigan license 5601008991.
Which hospitals is William Slager affiliated with?
William Slager is affiliated with Corewell Health Grand Rapids Hospitals - Butterworth. Dmand AI links William Slager to 2 more hospitals.
What medical group is William Slager part of?
William Slager is linked to Trinity Health Medical Group. Dmand AI links William Slager to 1 more medical group.
Does William Slager accept Medicare?
Yes. CMS lists William Slager as accepting Medicare assignment.
How many Medicare patients does William Slager see?
CMS counts 51 Medicare patients who saw William Slager in 2024, with an average age of 59.
How long has William Slager been practicing?
William Slager graduated from medical school in 2018, 8 years ago.
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