$7,183 in research paymentsMigraine DisordersHeadache Disorders, PrimaryLasmiditan
Dr. William H. Johnston Jr., MD
NPI1740385764
- Part D claims, 2024
- 51
- Clinical trials
- 3
- Industry payments
- $7,115
- State license
- 1
- Year NPI issued
- 2006
- Practice address
- 5485 E Huron River Dr, Ypsilanti, MI 48198
- Practice phone
- Call (205) 933-2750
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. 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.
Dr. William H. Johnston Jr. is a pediatrician in Ypsilanti, Michigan
Dr. Johnston practices in Ypsilanti, Michigan.
Dr. Johnston's NPI, 1740385764, was assigned on September 14, 2006. Dr. Johnston holds Alabama license 00007333.
NPI and contact details
- NPI
- 1740385764NPI Registry (opens in a new tab)
- NPI enumeration date
- September 14, 2006
- NPI status
- Active
- Practice phone
- (205) 933-2750
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); and Dmand AI Professional Profile Data
Dr. William H. Johnston Jr.'s practice address is in Ypsilanti, Michigan
Dr. Johnston's practice address in the NPI Registry is 5485 E Huron River Dr, Ypsilanti, MI 48198, in Washtenaw County. The practice phone is (205) 933-2750.
- NPI Registry address5485 E Huron River Dr, Ypsilanti, MI 48198 · Washtenaw CountyPhone(205) 933-2750
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. William H. Johnston Jr.'s practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Johnston practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dr. Johnston's practice | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. William H. Johnston Jr. is one of 1,807 pediatricians in Michigan
Pediatrics is Dr. Johnston's primary specialty in the NPI Registry, under taxonomy code 208000000X. Dr. Johnston is licensed in Alabama.
Specialties and state licenses
- Pediatrics, AlabamaPrimary
Pediatricians near Dr. Johnston
Counts of pediatricians with a Dmand AI profile, by place and practice. Each opens the list.
1,807pediatricians in Michigan
4pediatricians in Ypsilanti
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. William H. Johnston Jr.'s patients have a median age of 26
Across all payers, Dmand AI patient panel data puts Dr. Johnston's median patient age at 26, with 63% women.
Dr. 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 26
Patient panel by sex, all payers
- Women63%
- Men38%
Source: Dmand AI Patient Panel Data
Dr. William H. Johnston Jr. wrote 51 Medicare Part D claims in 2024
In 2024, Dr. Johnston wrote 51 Medicare Part D claims. 96% of them were for generic drugs. CMS names the drug for 36 of them, across 3 drugs with 11 or more claims each, at $154 in total drug cost. In 2023, CMS named 24 claims across 2 drugs.
Part D claims, 202451
Drugs named by CMS3
Total drug cost$154
Dr. Johnston's Part D claims by kind of drug, 2024
- Generic49 claims96%
- Brand-name and other2 claims4%
Dr. Johnston'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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 242024: 3650%
Drugs named by CMS: 3 in 2024, 2 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
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Dr. William H. Johnston Jr. has worked on 3 clinical trials
Dmand AI links Dr. Johnston to 3 clinical trials. 3 are still active or recruiting. Conditions studied include Migraine Disorders, Headache Disorders, Primary and Dermatitis, Atopic. Eli Lilly and Company sponsors the most, 2. Open Payments lists research payments to Dr. Johnston that name 3 trials.
Conditions in Dr. Johnston's trials
- Migraine Disorders
- Headache Disorders, Primary
- Dermatitis, Atopic
- Skin Diseases, Eczematous
Investigators on the most trials with Dr. Johnston
- Hossam Hamdi Abdelsalam, MD2 shared trials
- Rajiv Kumar Aggarwal, MBBS2 shared trials
- Gustavo Rafael Albizu, MD2 shared trials
Recent clinical trials with Dr. Johnston
$375 in research paymentsMigraine DisordersHeadache Disorders, PrimaryLasmiditan
10 Year Registry of Children (Ages 2-17 Years) With Eczema That Have Used Pimecrolimus (opens in a new tab)
Active, not recruiting
$800 in research paymentsDermatitis, AtopicSkin Diseases, EczematousPimecrolimus
Sources: Open Payments (CMS), 2025 data, released July 7, 2026; ClinicalTrials.gov (National Library of Medicine); and Dmand AI Research Linkage
Dr. William H. Johnston Jr. received $7,115 in industry payments from 2016 to 2023
CMS Open Payments shows 119 general payments to Dr. Johnston from 18 drug and device companies from 2016 to 2023. Travel and lodging make up the largest share, 63% of the total. Merck Sharp & Dohme Corporation paid the most, $4,345. It also lists 10 research payments totaling $8,357 from 2016 to 2024, naming 3 clinical trials.
General payments to Dr. Johnston by program year, 2016 to 2023
General payments to Dr. Johnston by kind, 2016 to 2023
$7.1Kin total
- Travel and lodging$4,49763%
- Food and beverage$2,61837%
Companies that paid Dr. Johnston the most, 2016 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. William H. Johnston Jr.'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 |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| 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) |
| Clinical trials and co-investigators | ClinicalTrials.gov (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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 Dr. William H. Johnston Jr.
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 H. Johnston Jr.'s NPI number?
Dr. William H. Johnston Jr.'s NPI number is 1740385764. It was assigned on September 14, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. William H. Johnston Jr.?
Dr. William H. Johnston Jr. is a pediatrician in Ypsilanti, Michigan. The primary specialty in the NPI Registry is Pediatrics Physician (taxonomy code 208000000X).
Where does Dr. William H. Johnston Jr. practice?
Dr. Johnston practices at 5485 E Huron River Dr, Ypsilanti, MI 48198.
What is Dr. William H. Johnston Jr.'s office phone number?
The practice phone on file for Dr. Johnston is (205) 933-2750.
What is Dr. William H. Johnston Jr.'s medical license number?
Dr. Johnston holds Alabama license 00007333.
What drugs does Dr. William H. Johnston Jr. prescribe most?
In 2024 Medicare Part D data, Dr. Johnston's most prescribed drugs by claims were Doxycycline Hyclate, Levothyroxine Sodium and Omeprazole.
Has Dr. William H. Johnston Jr. received payments from drug or device companies?
CMS Open Payments shows $7,115 in general payments to Dr. Johnston from 18 companies from 2016 to 2023. The largest total came from Merck Sharp & Dohme Corporation.
How long has Dr. William H. Johnston Jr. been practicing?
Dr. Johnston's NPI was assigned in 2006.
Does Dr. William H. Johnston Jr. do research?
Dr. Johnston has worked on 3 clinical trials.
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