Erica Diaz, FNP
NPI 1295370138 · Family Nurse Practitioner · Lancaster, TX
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Erica Diaz, FNP is a Family Nurse Practitioner provider in Lancaster, TX (NPI 1295370138).
Provider details
- NPI number
- 1295370138
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP
- Sex
- Female
- Sole proprietor
- No
- License
- AP144035 (TX)
Specialties & taxonomies
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
6 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
105 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 66 | $107 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 39 | $9 |
Typical Medicare-allowed amounts for these services range $9–$107 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 77 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 212 | 83 |
| Amlodipine Besylate | 211 | 77 |
| Lisinopril | 116 | 44 |
| Ergocalciferol (vitamin D2)brand: Vitamin D2 | 115 | 51 |
| Metformin Hcl | 106 | 40 |
| Losartan Potassium | 93 | 39 |
| Gabapentin |
Practice location
Mailing address
Registry dates
- Enumerated
- 2019-11-14
- Last updated
- 2025-08-20
- Certified
- 2025-08-20
Frequently asked questions
- What is Erica Diaz's NPI number?
- Erica Diaz's National Provider Identifier (NPI) is 1295370138, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Erica Diaz's specialty?
- Erica Diaz is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Erica Diaz located?
- Erica Diaz's practice location on file with NPPES is 2424 W Pleasant Run Rd Ste 200, Lancaster, TX 75146-4007.
- What is Erica Diaz's phone number?
- The practice phone number listed in the NPPES registry for Erica Diaz is (972) 274-5200.
- Does Erica Diaz accept Medicare?
- Erica Diaz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Erica Diaz's NPI active?
- Yes — Erica Diaz's NPI (1295370138) is active in the NPPES registry as of the last update on 2025-08-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.