Isabel Margarita Lemasters, APRN
Family Nurse Practitioner · Medford, OR
Isabel Margarita Lemasters, APRN is a family nurse practitioner with a practice address in Medford, Oregon, and NPI 1811514961, issued on Jul 5, 2020. Check the license (Oregon 202010826NP-PP, as entered in NPPES) with the Oregon board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Isabel Margarita Lemasters
- Credential
- APRN
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License numbers
- 202010826NP-PP OR
24068 SC
Self-reported in NPPES; status is on the state search - Practice location
- 2500 E Barnett RD, Medford, OR 97504
- Phone
- (541) 646-9400
- Enumerated
- Jul 5, 2020
- Record last updated
- Apr 1, 2025
- Fax
- (541) 646-9414
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 2,384 in Oregon → Look up another NPI →
Verify Isabel Margarita Lemasters in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Oregon board licenses this profession
Search for license 202010826NP-PPCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
39% fewer Medicare Part D claims than the average family nurse practitioner in 2024
792 Medicare Part D claims for 202 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.
Most prescribed
- Amlodipine Besylate77 claims
- Atorvastatin Calcium60 claims
- Lisinopril50 claims
- Levothyroxine Sodium40 claims
- Rosuvastatin Calcium32 claims
- Metformin Hcl31 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $145.52
7 payments; by number, the most common kind was food and beverage; the largest payer was Pfizer Inc. The 99,489 providers of this specialty with any payment received $650.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Isabel Margarita Lemasters among 2,384 family nurse practitioner records in Oregon
Isabel Margarita Lemasters, APRN is one of 2,384 family nurse practitioner records with a practice address in Oregon. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 73% of them.
- NPI issued2020 · 73% of these records are older, 22% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileNo · 58% of these records are
- Record last updated2025 · 46% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
167 family nurse practitioner records list a practice address in Medford
They are 167 of the 4,542 NPPES records with a practice address in Medford, and 2,384 family nurse practitioner records in Oregon.
All 2,384 in Oregon → Every provider in Medford → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Patricia Armstrong, FNPMedford, OR 975041548267214
- Melodee Badley, FNPMedford, OR 975041144250432
- Margaret Bismarck, FNPMedford, OR 975041427093301
- Caroline Dryland, FNPMedford, OR 975041285672873
- Cynthia Harper, MSN, FNPMedford, OR 975041578560116
- Mason Harrison, F.N.P.Medford, OR 975041356355846
- Kenneth Millsap, NPMedford, OR 975041750305066
- Sarah Roberson, FNPMedford, OR 975041275641730
Common questions
What is Isabel Margarita Lemasters, APRN's NPI number?
Isabel Margarita Lemasters, APRN's National Provider Identifier (NPI) is 1811514961, issued on Jul 5, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Isabel Margarita Lemasters, APRN located?
The NPPES record lists a practice address at 2500 E Barnett RD, Medford, OR, 97504. Phone: (541) 646-9400. Providers update this record themselves, so call before visiting.
How can I verify Isabel Margarita Lemasters, APRN's license?
NPPES lists Oregon license number 202010826NP-PP, as entered by the provider. Search the Oregon board that licenses this profession; the NPPES record confirms identity only.
How much does Isabel Margarita Lemasters, APRN prescribe under Medicare Part D?
In 2024, Isabel Margarita Lemasters, APRN had 792 Medicare Part D claims for 202 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.