Deirdre Mazzetto, NP, AGACNP-BC
NPI 1023580446 · Acute Care Nurse Practitioner · Merced, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Deirdre Mazzetto, NP, AGACNP-BC is a Acute Care Nurse Practitioner provider in Merced, CA (NPI 1023580446).
Provider details
- NPI number
- 1023580446
- Entity type
- Individual
- Primary specialty
- Acute Care Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP, AGACNP-BC
- Sex
- Female
- Sole proprietor
- No
- License
- 95010718 (CA)
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 tenure33% of score
7 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- 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 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 37 | 20 |
| Lisinopril | 20 | 11 |
| Hydrochlorothiazide | 16 | — |
| Losartan Potassium | 16 | — |
| Metoprolol Succinate | 13 | — |
| Omeprazole | 13 | — |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$48 across 2 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)
- 2800 L St Fl 6Sacramento, CA 95816-5616Phone: (916) 887-4040Fax: (916) 887-4045
Registry dates
- Enumerated
- 2018-12-24
- Last updated
- 2021-02-08
- Certified
- 2021-02-08
Frequently asked questions
- What is Deirdre Mazzetto's NPI number?
- Deirdre Mazzetto's National Provider Identifier (NPI) is 1023580446, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Deirdre Mazzetto's specialty?
- Deirdre Mazzetto is listed in the NPPES registry with a primary specialty of Acute Care Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Deirdre Mazzetto located?
- Deirdre Mazzetto's practice location on file with NPPES is 220 E 13th St, Merced, CA 95341-6250.
- What is Deirdre Mazzetto's phone number?
- The practice phone number listed in the NPPES registry for Deirdre Mazzetto is (209) 723-2122.
- Does Deirdre Mazzetto accept Medicare?
- Deirdre Mazzetto is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Deirdre Mazzetto's NPI active?
- Yes — Deirdre Mazzetto's NPI (1023580446) is active in the NPPES registry as of the last update on 2021-02-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.