Nadia Sifuentes, FNP
NPI 1669002564 · Family Nurse Practitioner · Brownsville, TX
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nadia Sifuentes, FNP is a Family Nurse Practitioner provider in Brownsville, TX (NPI 1669002564).
Provider details
- NPI number
- 1669002564
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP
- Sex
- Female
- Sole proprietor
- Yes
- License
- AP145039 (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 tenure38% of score
6 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 · 6 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 34 | 31 |
| Amlodipine Besylate | 14 | 11 |
| Metformin Hcl | 14 | 12 |
| Sitagliptin Phosphatebrand: Januvia | 13 | — |
| Losartan Potassium | 12 | 12 |
| Rosuvastatin Calcium | 11 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they include cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Additional practice locations (1)
- 422 E 18th StWeslaco, TX 78596-8032Phone: (956) 973-8451Fax: (956) 306-6941
Registry dates
- Enumerated
- 2020-01-19
- Last updated
- 2026-03-09
- Certified
- 2026-03-09
Frequently asked questions
- What is Nadia Sifuentes's NPI number?
- Nadia Sifuentes's National Provider Identifier (NPI) is 1669002564, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nadia Sifuentes's specialty?
- Nadia Sifuentes is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Nadia Sifuentes located?
- Nadia Sifuentes's practice location on file with NPPES is 800 W Jefferson St Ste 200, Brownsville, TX 78520-6300.
- What is Nadia Sifuentes's phone number?
- The practice phone number listed in the NPPES registry for Nadia Sifuentes is (956) 574-0431.
- Does Nadia Sifuentes accept Medicare?
- Nadia Sifuentes is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nadia Sifuentes's NPI active?
- Yes — Nadia Sifuentes's NPI (1669002564) is active in the NPPES registry as of the last update on 2026-03-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.