Amy M. Johnston, PA-C
- Part D claims, 2024
- 267
- Hospital affiliations
- 1
- Industry payments
- $24
- Medical group
- 1
- State license
- 1
- Practice address
- 3601 W Thirteen Mile Rd, Royal Oak, MI 48073
- Practice phone
- Call (248) 898-5400
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Amy Johnston'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.
Amy M. Johnston is a physician assistant in Royal Oak, Michigan
Amy Johnston practices at Corewell Health William Beaumont University Hospital in Royal Oak, Michigan, part of Corewell Health.
Amy Johnston's NPI, 1891232278, was assigned on January 24, 2017. Amy Johnston holds Michigan license 5601007952.
- NPI
- 1891232278NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3678825767
- NPI enumeration date
- January 24, 2017
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (248) 898-5400
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 36
- Medical school graduation
- 2016
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Amy M. Johnston practices at Corewell Health William Beaumont University Hospital in Royal Oak, Michigan
Amy Johnston's primary practice is Corewell Health William Beaumont University Hospital, at 3601 W Thirteen Mile Rd, Royal Oak, MI 48073 in Oakland County. The practice phone is (248) 898-5400.
- Corewell Health William Beaumont University Hospital3601 W Thirteen Mile Rd, Royal Oak, MI 48073 · Oakland CountyPhone(248) 898-5400
Source: Dmand AI Affiliation Data
Amy M. Johnston is affiliated with 2 sites of care and 1 medical group
Amy Johnston's primary practice is Corewell Health William Beaumont University Hospital in Royal Oak, Michigan, part of Corewell Health. The medical group on file is Michigan Healthcare Professionals, P.C. Dmand AI also links Amy Johnston to 1 more group practice or clinic, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Amy M. Johnston's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Amy Johnston practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Corewell Health William Beaumont University Hospital | Available with a free account |
| +1 more affiliated site | 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.
Amy M. Johnston is one of 5,857 physician assistants in Michigan
Physician assistant is Amy Johnston's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Amy Johnston is licensed in Michigan.
Specialties and state licenses
- Physician assistant, MichiganPrimary
Physician assistants near Amy Johnston
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
Amy M. Johnston's patients have a median age of 64
Across all payers, Dmand AI patient panel data puts Amy Johnston's median patient age at 64, with 59% women.
Amy Johnston's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 64
Patient panel by sex, all payers
- Women59%
- Men41%
Source: Dmand AI Patient Panel Data
Amy M. Johnston wrote 267 Medicare Part D claims in 2024
In 2024, Amy Johnston wrote 267 Medicare Part D claims for 85 patients. 88% of them were for generic drugs.
Amy Johnston's Part D claims by kind of drug, 2024
- Generic236 claims88%
- Brand-name and other31 claims12%
Drug classes CMS tracks in Amy Johnston's Part D claims, 2024
- Opioids10%27 of 267 claims
- Antibiotics16%43 of 267 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 Amy M. Johnston takes part in Medicare
Amy Johnston 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)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Amy M. Johnston received $24 in industry payments in 2025
CMS Open Payments shows 1 general payment to Amy Johnston from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. SpringWorks Therapeutics, Inc. paid the most, $24.
Companies that paid Amy Johnston 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 Amy M. Johnston'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 Data |
| 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 Amy M. Johnston
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Amy M. Johnston's NPI number?
Amy M. Johnston's NPI number is 1891232278. It was assigned on January 24, 2017, and it is active in the NPI Registry.
What does Amy M. Johnston specialize in?
Amy M. Johnston is a physician assistant in Royal Oak, Michigan. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Amy M. Johnston practice?
Amy Johnston practices at 3601 W Thirteen Mile Rd, Royal Oak, MI 48073. Amy Johnston's primary practice is Corewell Health William Beaumont University Hospital in Royal Oak, Michigan, part of Corewell Health. Dmand AI also links Amy Johnston to 1 group practice or clinic.
What is Amy M. Johnston's office phone number?
The practice phone on file for Amy Johnston is (248) 898-5400.
What is Amy M. Johnston's medical license number?
Amy Johnston holds Michigan license 5601007952.
Which hospitals is Amy M. Johnston affiliated with?
Amy Johnston practices at Corewell Health William Beaumont University Hospital in Royal Oak, Michigan.
What medical group is Amy M. Johnston part of?
Amy Johnston is linked to Michigan Healthcare Professionals, P.C.
Does Amy M. Johnston accept Medicare?
Yes. CMS lists Amy Johnston as accepting Medicare assignment.
Has Amy M. Johnston received payments from drug or device companies?
CMS Open Payments shows $24 in general payments to Amy Johnston from 1 company from 2025 to 2025. The largest total came from SpringWorks Therapeutics, Inc.
How long has Amy M. Johnston been practicing?
Amy Johnston graduated from medical school in 2016, 10 years ago.
Selling to physician assistant practices?
See physician assistants in Michigan by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card