Isabel Lemasters, APRN
NPI 1811514961 · Family Nurse Practitioner · Medford, OR
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Isabel Lemasters, APRN is a Family Nurse Practitioner provider in Medford, OR (NPI 1811514961).
Provider details
- NPI number
- 1811514961
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- APRN
- Sex
- Female
- Sole proprietor
- Yes
- License
- 202010826NP-PP (OR)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Allopathic & Osteopathic Physicians
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
5 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
501 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 86 | $75 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 85 | $105 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 63 | $9 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 33 | $10 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 31 | $106 |
| Hemoglobin A1c Level83036 | 28 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 77 | 38 |
| Atorvastatin Calcium | 60 | 29 |
| Lisinopril | 50 | 31 |
| Levothyroxine Sodium | 40 | 27 |
| Rosuvastatin Calcium | 32 | 20 |
| Metformin Hcl | 31 | 23 |
| Losartan Potassium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$146 across 7 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 16 Terra Linda CtEagle Point, OR 97524-8635Phone: (541) 646-9400
Registry dates
- Enumerated
- 2020-07-05
- Last updated
- 2025-04-01
- Certified
- 2025-04-01
Frequently asked questions
- What is Isabel Lemasters's NPI number?
- Isabel Lemasters's National Provider Identifier (NPI) is 1811514961, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Isabel Lemasters's specialty?
- Isabel Lemasters is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Isabel Lemasters located?
- Isabel Lemasters's practice location on file with NPPES is 2500 E Barnett Rd, Medford, OR 97504-8345.
- What is Isabel Lemasters's phone number?
- The practice phone number listed in the NPPES registry for Isabel Lemasters is (541) 646-9400.
- Does Isabel Lemasters accept Medicare?
- Isabel Lemasters is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Isabel Lemasters's NPI active?
- Yes — Isabel Lemasters's NPI (1811514961) is active in the NPPES registry as of the last update on 2025-04-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.