Grace Duenas, FNP
NPI 1851048896 · Family Nurse Practitioner · Modesto, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Grace Duenas, FNP is a Family Nurse Practitioner provider in Modesto, CA (NPI 1851048896).
Provider details
- NPI number
- 1851048896
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP
- Sex
- Female
- Sole proprietor
- No
- License
- 95085956 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Nursing Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
4 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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 · 22 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 95 | 35 |
| Amlodipine Besylate | 88 | 21 |
| Metformin Hcl | 76 | 21 |
| Lisinopril | 62 | 23 |
| Carvedilol | 33 | — |
| Gabapentin | 27 | — |
| Levothyroxine Sodium | 27 |
Practice location
Mailing address
Additional practice locations (1)
- 847 W Childs Ave Ste CMerced, CA 95341-6862Phone: (866) 682-4842Fax: (209) 383-7813
Registry dates
- Enumerated
- 2022-03-09
- Last updated
- 2022-06-09
- Certified
- 2022-06-09
Frequently asked questions
- What is Grace Duenas's NPI number?
- Grace Duenas's National Provider Identifier (NPI) is 1851048896, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Grace Duenas's specialty?
- Grace Duenas is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Grace Duenas located?
- Grace Duenas's practice location on file with NPPES is 1717 Las Vegas St, Modesto, CA 95358-5500.
- What is Grace Duenas's phone number?
- The practice phone number listed in the NPPES registry for Grace Duenas is (866) 682-4842.
- Does Grace Duenas accept Medicare?
- Grace Duenas is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Grace Duenas's NPI active?
- Yes — Grace Duenas's NPI (1851048896) is active in the NPPES registry as of the last update on 2022-06-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.