Nancy Trego, GNP-C
NPI 1528150539 · Gerontology Nurse Practitioner · Napa, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nancy Trego, GNP-C is a Gerontology Nurse Practitioner provider in Napa, CA (NPI 1528150539).
Provider details
- NPI number
- 1528150539
- Entity type
- Individual
- Primary specialty
- Gerontology Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- GNP-C
- Sex
- Female
- Sole proprietor
- No
- License
- 440995 (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 tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 · 43 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 169 | 24 |
| Mirtazapine | 91 | 17 |
| Furosemide | 83 | 19 |
| Levothyroxine Sodium | 82 | — |
| Sertraline Hcl | 62 | 13 |
| Amlodipine Besylate | 47 | — |
| Insulin Nph Human Isophane |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-28
- Last updated
- 2022-01-03
Frequently asked questions
- What is Nancy Trego's NPI number?
- Nancy Trego's National Provider Identifier (NPI) is 1528150539, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nancy Trego's specialty?
- Nancy Trego is listed in the NPPES registry with a primary specialty of Gerontology Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Nancy Trego located?
- Nancy Trego's practice location on file with NPPES is 3285 Claremont Way, Napa, CA 94558-3313.
- What is Nancy Trego's phone number?
- The practice phone number listed in the NPPES registry for Nancy Trego is (707) 258-4548.
- Does Nancy Trego accept Medicare?
- Nancy Trego is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nancy Trego's NPI active?
- Yes — Nancy Trego's NPI (1528150539) is active in the NPPES registry as of the last update on 2022-01-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.