Dr. Michael Jack Leymaster, MD
- Part D claims, 2021
- 23
- Industry payments
- $380
- Affiliated sites
- 1
- Medical group
- 1
- State license
- 1
- Practice address
- 1069 Delaware Ave, Marion, OH 43302
- Practice phone
- Call (614) 566-0152
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
OH Independent Medical Group
Marion, Ohio
Find Dr. Leymaster'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. Michael Jack Leymaster is a pediatrician in Marion, Ohio
Dr. Leymaster practices at OH Independent Medical Group in Marion, Ohio.
Dr. Leymaster's NPI, 1164426995, was assigned on June 9, 2005. Dr. Leymaster holds Ohio license 35.081189.
- NPI
- 1164426995NPI Registry (opens in a new tab)
- NPI enumeration date
- June 9, 2005
- NPI status
- Active
- Practice phone
- (614) 566-0152
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Michael Jack Leymaster practices at OH Independent Medical Group in Marion, Ohio
Dr. Leymaster's primary practice is OH Independent Medical Group, at 1069 Delaware Ave, Marion, OH 43302 in Marion County. The practice phone is (614) 566-0152.
- OH Independent Medical Group1069 Delaware Ave, Marion, OH 43302 · Marion CountyPhone(614) 566-0152
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Michael Jack Leymaster is affiliated with 2 sites of care and 1 medical group
Dr. Leymaster's primary practice is OH Independent Medical Group in Marion, Ohio. The medical group on file is OhioHealth Physician Group. Dmand AI also links Dr. Leymaster to 1 more group practice or clinic, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Michael Jack Leymaster's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Leymaster practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| OH Independent Medical Group | 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 each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Michael Jack Leymaster is one of 2,468 pediatricians in Ohio
Pediatrics is Dr. Leymaster's primary specialty in the NPI Registry, under taxonomy code 208000000X. Dr. Leymaster is licensed in Ohio.
Specialties and state licenses
- Pediatrics, OhioPrimary
Pediatricians near Dr. Leymaster
Counts of pediatricians 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. Michael Jack Leymaster's patients have a median age of 12
Across all payers, Dmand AI patient panel data puts Dr. Leymaster's median patient age at 12, with 40% women.
Dr. Leymaster's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 12
Patient panel by sex, all payers
- Women40%
- Men60%
Source: Dmand AI Patient Panel Data
Dr. Michael Jack Leymaster wrote 23 Medicare Part D claims in 2021
In 2021, Dr. Leymaster wrote 23 Medicare Part D claims. They cover 2 drugs, with $2,630 in total drug cost.
Dr. Leymaster's most prescribed drugs by claims, 2021
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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.
Dr. Michael Jack Leymaster received $380 in industry payments from 2016 to 2025
CMS Open Payments shows 22 general payments to Dr. Leymaster from 14 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Tris Pharma Inc paid the most, $51.
General payments to Dr. Leymaster by program year, 2016 to 2025
Companies that paid Dr. Leymaster the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Michael Jack Leymaster'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 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) |
| 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. Michael Jack Leymaster
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. Michael Jack Leymaster's NPI number?
Dr. Michael Jack Leymaster's NPI number is 1164426995. It was assigned on June 9, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Michael Jack Leymaster?
Dr. Michael Jack Leymaster is a pediatrician in Marion, Ohio. The primary specialty in the NPI Registry is Pediatrics Physician (taxonomy code 208000000X).
Where does Dr. Michael Jack Leymaster practice?
Dr. Leymaster practices at 1069 Delaware Ave, Marion, OH 43302. Dr. Leymaster's primary practice is OH Independent Medical Group in Marion, Ohio. Dmand AI also links Dr. Leymaster to 1 group practice or clinic.
What is Dr. Michael Jack Leymaster's office phone number?
The practice phone on file for Dr. Leymaster is (614) 566-0152.
What is Dr. Michael Jack Leymaster's medical license number?
Dr. Leymaster holds Ohio license 35.081189.
What medical group is Dr. Michael Jack Leymaster part of?
Dr. Leymaster is linked to OhioHealth Physician Group.
What drugs does Dr. Michael Jack Leymaster prescribe most?
In 2021 Medicare Part D data, Dr. Leymaster's most prescribed drugs by claims were Albuterol Sulfate Hfa and Flovent Hfa.
Has Dr. Michael Jack Leymaster received payments from drug or device companies?
CMS Open Payments shows $380 in general payments to Dr. Leymaster from 14 companies from 2016 to 2025. The largest total came from Tris Pharma Inc.
How long has Dr. Michael Jack Leymaster been practicing?
Dr. Leymaster's NPI was assigned in 2005.
Selling to pediatrics practices?
See pediatricians in Ohio 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