April Timmerman, MSN, APRN, FNP-C
NPI 1578166237 · Family Nurse Practitioner · Mesa, AZ
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
April Timmerman, MSN, APRN, FNP-C is a Family Nurse Practitioner provider in Mesa, AZ (NPI 1578166237).
Provider details
- NPI number
- 1578166237
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- MSN, APRN, FNP-C
- Sex
- Female
- Sole proprietor
- No
- License
- 250100 (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 tenure33% of score
5 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 52 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Metoprolol Succinate | 466 | 178 |
| Atorvastatin Calcium | 310 | 108 |
| Rosuvastatin Calcium | 284 | 93 |
| Clopidogrel Bisulfatebrand: Clopidogrel | 261 | 88 |
| Amlodipine Besylate | 260 | 102 |
| Valsartan | 238 | 85 |
| Losartan Potassium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$504 across 23 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
Registry dates
- Enumerated
- 2020-11-17
- Last updated
- 2025-06-25
- Certified
- 2025-06-25
Frequently asked questions
- What is April Timmerman's NPI number?
- April Timmerman's National Provider Identifier (NPI) is 1578166237, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is April Timmerman's specialty?
- April Timmerman is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is April Timmerman located?
- April Timmerman's practice location on file with NPPES is 6309 E Baywood Ave Ste 101, Mesa, AZ 85206-1726.
- What is April Timmerman's phone number?
- The practice phone number listed in the NPPES registry for April Timmerman is (480) 641-5400.
- Does April Timmerman accept Medicare?
- April Timmerman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is April Timmerman's NPI active?
- Yes — April Timmerman's NPI (1578166237) is active in the NPPES registry as of the last update on 2025-06-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.