Olivia P. Lemaster, APRN, CNP
- Medicare patients, 2024
- 151
- Part D claims, 2024
- 312
- Hospital affiliations
- 3
- Industry payments
- $100
- Medical group
- 1
- Practice address
- 500 London Avenue, Marysville, OH 43040
- Practice phone
- Call (937) 644-6115
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Olivia Lemaster'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.
Olivia P. Lemaster is a nurse practitioner in Marysville, Ohio
Olivia Lemaster practices at Memorial Hospital in Marysville, Ohio, part of Union County, Ohio.
Olivia Lemaster's NPI, 1679005995, was assigned on March 28, 2017. Olivia Lemaster holds Ohio license APRN.CNP.021209.
- NPI
- 1679005995NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8527339571
- NPI enumeration date
- March 28, 2017
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (937) 644-6115
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- 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)
Olivia P. Lemaster practices at Memorial Hospital in Marysville, Ohio
Olivia Lemaster's primary practice is Memorial Hospital, at 500 London Avenue, Marysville, OH 43040 in Union County. The practice phone is (937) 644-6115.
- Memorial Hospital500 London Avenue, Marysville, OH 43040 · Union CountyPhone(937) 644-6115
Source: Dmand AI Affiliation Data
Olivia P. Lemaster is affiliated with 3 sites of care and 1 medical group
Olivia Lemaster's primary practice is Memorial Hospital in Marysville, Ohio, part of Union County, Ohio. Olivia Lemaster is also affiliated with The James Cancer Hospital and Solove Research Institute. The medical group on file is Memorial Medical Group. Dmand AI also links Olivia Lemaster to 1 more hospital, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Olivia P. Lemaster's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Olivia Lemaster practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Memorial Hospital | Available with a free account |
| +2 more affiliated sites | 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 Union County, Ohio and 6.2K+ hospitals, with verified contacts in the same login.
Olivia P. Lemaster is one of 3,389 nurse practitioners in Ohio
Nurse practitioner is Olivia Lemaster's primary specialty in the NPI Registry, under taxonomy code 363L00000X. Olivia Lemaster is licensed in Ohio.
Specialties and state licenses
- Nurse practitioner, OhioPrimary
Nurse practitioners near Olivia Lemaster
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
Olivia P. Lemaster treated 151 Medicare patients in 2024, average age 76
CMS counts 151 Medicare patients who saw Olivia Lemaster in 2024. The largest group is 75 to 84, with 63 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 1.87, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Olivia Lemaster's median patient age at 71, with 65% women.
Olivia Lemaster's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Olivia Lemaster's Medicare patients by sex, 2024
- Women9362%
- Men5838%
Chronic conditions among Olivia Lemaster's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis50%
- Chronic kidney disease44%
- Diabetes41%
- Mood disorders33%
- Depression30%
- Ischemic heart disease30%
Share of Medicare patients with each condition. A patient can have several.
Olivia Lemaster's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women65%
- Men34%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Olivia P. Lemaster wrote 312 Medicare Part D claims in 2024
In 2024, Olivia Lemaster wrote 312 Medicare Part D claims for 98 patients. 92% of them were for generic drugs.
Olivia Lemaster's Part D claims by kind of drug, 2024
- Generic286 claims92%
- Brand-name and other26 claims8%
Drug classes CMS tracks in Olivia Lemaster's Part D claims, 2024
- Opioids8%26 of 312 claims
- Antibiotics10%32 of 312 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 Olivia P. Lemaster takes part in Medicare
Olivia Lemaster 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.
Olivia P. Lemaster received $100 in industry payments in 2025
CMS Open Payments shows 1 general payment to Olivia Lemaster from 1 drug or device company in 2025. Education make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $100.
Companies that paid Olivia Lemaster 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 Olivia P. Lemaster'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 Olivia P. Lemaster
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Olivia P. Lemaster's NPI number?
Olivia P. Lemaster's NPI number is 1679005995. It was assigned on March 28, 2017, and it is active in the NPI Registry.
What does Olivia P. Lemaster specialize in?
Olivia P. Lemaster is a nurse practitioner in Marysville, Ohio. The primary specialty in the NPI Registry is Nurse Practitioner (taxonomy code 363L00000X).
Where does Olivia P. Lemaster practice?
Olivia Lemaster practices at 500 London Avenue, Marysville, OH 43040. Olivia Lemaster's primary practice is Memorial Hospital in Marysville, Ohio, part of Union County, Ohio. Dmand AI also links Olivia Lemaster to 1 hospital.
What is Olivia P. Lemaster's office phone number?
The practice phone on file for Olivia Lemaster is (937) 644-6115.
What is Olivia P. Lemaster's medical license number?
Olivia Lemaster holds Ohio license APRN.CNP.021209.
Which hospitals is Olivia P. Lemaster affiliated with?
Olivia Lemaster practices at Memorial Hospital in Marysville, Ohio. Olivia Lemaster is also affiliated with The James Cancer Hospital and Solove Research Institute. Dmand AI links Olivia Lemaster to 1 more hospital.
What medical group is Olivia P. Lemaster part of?
Olivia Lemaster is linked to Memorial Medical Group.
Does Olivia P. Lemaster accept Medicare?
Yes. CMS lists Olivia Lemaster as accepting Medicare assignment.
How many Medicare patients does Olivia P. Lemaster see?
CMS counts 151 Medicare patients who saw Olivia Lemaster in 2024, with an average age of 76.
Has Olivia P. Lemaster received payments from drug or device companies?
CMS Open Payments shows $100 in general payments to Olivia Lemaster from 1 company from 2025 to 2025. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Olivia P. Lemaster been practicing?
Olivia Lemaster graduated from medical school in 2017, 9 years ago.
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