Daniel Mayer-William Johnson, NP
- Medicare patients, 2024
- 64
- Part D claims, 2024
- 1,994
- Hospital affiliations
- 2
- Industry payments
- $169
- Medical groups
- 2
- Practice address
- 100 Michigan St NE, Grand Rapids, MI 49503
- Practice phone
- Call (616) 391-1774
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Daniel Johnson'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.
Daniel Mayer-William Johnson is a nurse practitioner in Grand Rapids, Michigan
Daniel Johnson practices at Corewell Health Grand Rapids Hospitals - Butterworth in Grand Rapids, Michigan, part of Corewell Health.
Daniel Johnson's NPI, 1275045999, was assigned on November 3, 2017. Daniel Johnson holds Michigan license 4704302932.
- NPI
- 1275045999NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4981962206
- NPI enumeration date
- November 3, 2017
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (616) 391-1774
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 35
- Medical school graduation
- 2017
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Daniel Mayer-William Johnson practices at Corewell Health Grand Rapids Hospitals - Butterworth in Grand Rapids, Michigan
Daniel Johnson's primary practice is Corewell Health Grand Rapids Hospitals - Butterworth, at 100 Michigan St NE, Grand Rapids, MI 49503 in Kent County. The practice phone is (616) 391-1774.
- Corewell Health Grand Rapids Hospitals - Butterworth100 Michigan St NE, Grand Rapids, MI 49503 · Kent CountyPhone(616) 391-1774
Source: Dmand AI Affiliation Data
Daniel Mayer-William Johnson is affiliated with 4 sites of care and 2 medical groups
Daniel Johnson's primary practice is Corewell Health Grand Rapids Hospitals - Butterworth in Grand Rapids, Michigan, part of Corewell Health. Daniel Johnson is also affiliated with Corewell Health Ludington Hospital. The medical group on file is Corewell Health Medical Group West. Dmand AI also links Daniel Johnson to 2 more group practices and clinics and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Daniel Mayer-William Johnson's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Daniel Johnson practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Corewell Health Grand Rapids Hospitals - Butterworth | 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
Dmand AI maps EHR vendors, IT decision makers and buying committees across Corewell Health and 6.2K+ hospitals, with verified contacts in the same login.
Daniel Mayer-William Johnson is one of 2,742 nurse practitioners in Michigan
Nurse practitioner is Daniel Johnson's primary specialty in the NPI Registry, under taxonomy code 363L00000X. Daniel Johnson is licensed in Michigan.
Specialties and state licenses
- Nurse practitioner, MichiganPrimary
Nurse practitioners near Daniel Johnson
Counts of nurse practitioners 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
Daniel Mayer-William Johnson treated 64 Medicare patients in 2024, average age 67
CMS counts 64 Medicare patients who saw Daniel Johnson in 2024. The largest group is 65 to 74, with 33 patients. 73% of them have high blood pressure, and 61% have high cholesterol. 28% are also on Medicaid. Their average risk score is 2.43, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Daniel Johnson's median patient age at 67, with 51% women.
Daniel Johnson's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Daniel Johnson's Medicare patients by sex, 2024
- Women3758%
- Men2742%
Chronic conditions among Daniel Johnson's Medicare patients, 2024
- High blood pressure73%
- High cholesterol61%
- Mood disorders58%
- Cancer56%
- Anxiety55%
- Depression52%
- Arthritis45%
- Tobacco use31%
Share of Medicare patients with each condition. A patient can have several.
Daniel Johnson's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women51%
- Men49%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Daniel Mayer-William Johnson wrote 1,994 Medicare Part D claims in 2024
In 2024, Daniel Johnson wrote 1,994 Medicare Part D claims for 386 patients. 95% of them were for generic drugs.
Daniel Johnson's Part D claims by kind of drug, 2024
- Generic1,886 claims95%
- Brand-name and other108 claims5%
Drug classes CMS tracks in Daniel Johnson's Part D claims, 2024
- Opioids39%770 of 1,994 claims
- Antipsychotics, patients 65 and over2%35 of 1,994 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
Daniel Mayer-William Johnson offers telehealth to Medicare patients
Daniel Johnson accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Daniel Johnson as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Daniel Mayer-William Johnson received $169 in industry payments in 2025
CMS Open Payments shows 2 general payments to Daniel Johnson from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Medtronic, Inc. paid the most, $169.
Companies that paid Daniel Johnson the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Daniel Mayer-William Johnson'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 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) |
| Industry payments | Open Payments (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 Daniel Mayer-William Johnson
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Daniel Mayer-William Johnson's NPI number?
Daniel Mayer-William Johnson's NPI number is 1275045999. It was assigned on November 3, 2017, and it is active in the NPI Registry.
What does Daniel Mayer-William Johnson specialize in?
Daniel Mayer-William Johnson is a nurse practitioner in Grand Rapids, Michigan. The primary specialty in the NPI Registry is Nurse Practitioner (taxonomy code 363L00000X).
Where does Daniel Mayer-William Johnson practice?
Daniel Johnson practices at 100 Michigan St NE, Grand Rapids, MI 49503. Daniel Johnson's primary practice is Corewell Health Grand Rapids Hospitals - Butterworth in Grand Rapids, Michigan, part of Corewell Health. Dmand AI also links Daniel Johnson to 2 group practices and clinics and 1 medical group.
What is Daniel Mayer-William Johnson's office phone number?
The practice phone on file for Daniel Johnson is (616) 391-1774.
What is Daniel Mayer-William Johnson's medical license number?
Daniel Johnson holds Michigan license 4704302932.
Which hospitals is Daniel Mayer-William Johnson affiliated with?
Daniel Johnson practices at Corewell Health Grand Rapids Hospitals - Butterworth in Grand Rapids, Michigan. Daniel Johnson is also affiliated with Corewell Health Ludington Hospital.
What medical group is Daniel Mayer-William Johnson part of?
Daniel Johnson is linked to Corewell Health Medical Group West. Dmand AI links Daniel Johnson to 1 more medical group.
Does Daniel Mayer-William Johnson accept Medicare?
Yes. CMS lists Daniel Johnson as accepting Medicare assignment.
Does Daniel Mayer-William Johnson offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Daniel Johnson as offering telehealth services.
How many Medicare patients does Daniel Mayer-William Johnson see?
CMS counts 64 Medicare patients who saw Daniel Johnson in 2024, with an average age of 67.
Has Daniel Mayer-William Johnson received payments from drug or device companies?
CMS Open Payments shows $169 in general payments to Daniel Johnson from 1 company from 2025 to 2025. The largest total came from Medtronic, Inc.
How long has Daniel Mayer-William Johnson been practicing?
Daniel Johnson graduated from medical school in 2017, 9 years ago.
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