Ashley Fonseca-Tweed, FNP-BC
NPI 1275316176 · Family Nurse Practitioner · Grand Terrace, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ashley Fonseca-Tweed, FNP-BC is a Family Nurse Practitioner provider in Grand Terrace, CA (NPI 1275316176).
Provider details
- NPI number
- 1275316176
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP-BC
- Sex
- Female
- Sole proprietor
- No
- License
- 95025817 (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
2 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 · 6 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Losartan Potassium | 31 |
| Levothyroxine Sodium | 30 |
| Lisinopril | 26 |
| Atorvastatin Calcium | 18 |
| Hydrochlorothiazide | 18 |
| Amlodipine Besylate | 11 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude 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 no Part D record, 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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$29 across 1 record (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
- 2023-08-15
- Last updated
- 2026-02-26
- Certified
- 2026-02-26
Frequently asked questions
- What is Ashley Fonseca-Tweed's NPI number?
- Ashley Fonseca-Tweed's National Provider Identifier (NPI) is 1275316176, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ashley Fonseca-Tweed's specialty?
- Ashley Fonseca-Tweed is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Ashley Fonseca-Tweed located?
- Ashley Fonseca-Tweed's practice location on file with NPPES is 11980 Mount Vernon Ave, Grand Terrace, CA 92313-5172.
- What is Ashley Fonseca-Tweed's phone number?
- The practice phone number listed in the NPPES registry for Ashley Fonseca-Tweed is (909) 864-1097.
- Does Ashley Fonseca-Tweed accept Medicare?
- Ashley Fonseca-Tweed is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ashley Fonseca-Tweed's NPI active?
- Yes — Ashley Fonseca-Tweed's NPI (1275316176) is active in the NPPES registry as of the last update on 2026-02-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.