Margaret Horton-Breshears, AGPCNP-BC
NPI 1740700442 · Adult Health Nurse Practitioner · Tucson, AZ
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Margaret Horton-Breshears, AGPCNP-BC is a Adult Health Nurse Practitioner provider in Tucson, AZ (NPI 1740700442).
Provider details
- NPI number
- 1740700442
- Entity type
- Individual
- Primary specialty
- Adult Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- AGPCNP-BC
- Sex
- Female
- Sole proprietor
- No
- License
- AP10274 (AZ)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
8 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
174 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 51 | $9 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 31 | $8 |
| Hemoglobin A1c Level83036 | 25 | $10 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 20 | $10 |
| Blood Test, Lipids (cholesterol and Triglycerides)80061 | 20 | $13 |
| Manual Urinalysis Test With Examination Using Microscope, Automated81001 | 16 | $3 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 88 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 320 | 92 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 215 | 65 |
| Losartan Potassium | 197 | 54 |
| Lisinopril | 167 | 50 |
| Levothyroxine Sodium | 145 | 40 |
| Metformin Hcl | 124 | 37 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2017-06-23
- Last updated
- 2025-02-28
- Certified
- 2025-02-28
Frequently asked questions
- What is Margaret Horton-Breshears's NPI number?
- Margaret Horton-Breshears's National Provider Identifier (NPI) is 1740700442, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret Horton-Breshears's specialty?
- Margaret Horton-Breshears is listed in the NPPES registry with a primary specialty of Adult Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Margaret Horton-Breshears located?
- Margaret Horton-Breshears's practice location on file with NPPES is 1230 S Cherrybell Stra, Tucson, AZ 85713-1907.
- What is Margaret Horton-Breshears's phone number?
- The practice phone number listed in the NPPES registry for Margaret Horton-Breshears is (520) 670-3909.
- Does Margaret Horton-Breshears accept Medicare?
- Margaret Horton-Breshears is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Margaret Horton-Breshears's NPI active?
- Yes — Margaret Horton-Breshears's NPI (1740700442) is active in the NPPES registry as of the last update on 2025-02-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.