Joseph Villanueva, NP
NPI 1104230259 · Nurse Practitioner · Downey, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joseph Villanueva, NP is a Nurse Practitioner provider in Downey, CA (NPI 1104230259).
Provider details
- NPI number
- 1104230259
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Male
- Sole proprietor
- Yes
- License
- 23460 (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 tenure25% of score
12 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
16 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. 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 .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Stool Analysis for Blood, By Fecal Hemoglobin Determination By Immunoassay82274 | 16 | $16 |
Typical Medicare-allowed amounts for these services range $16–$16 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 89 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Baclofen | 478 | 102 |
| Gabapentin | 379 | 72 |
| Metformin Hcl | 161 | 37 |
| Amlodipine Besylate | 159 | 39 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 151 | 28 |
| Atorvastatin Calcium | 146 | 51 |
| Oxybutynin Chloride |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$64 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
Registry dates
- Enumerated
- 2014-06-17
- Last updated
- 2015-06-15
Frequently asked questions
- What is Joseph Villanueva's NPI number?
- Joseph Villanueva's National Provider Identifier (NPI) is 1104230259, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joseph Villanueva's specialty?
- Joseph Villanueva is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Joseph Villanueva located?
- Joseph Villanueva's practice location on file with NPPES is 7601 E. Imperial Hwy, Downey, CA 90242.
- What is Joseph Villanueva's phone number?
- The practice phone number listed in the NPPES registry for Joseph Villanueva is (562) 401-7963.
- Does Joseph Villanueva accept Medicare?
- Joseph Villanueva is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joseph Villanueva's NPI active?
- Yes — Joseph Villanueva's NPI (1104230259) is active in the NPPES registry as of the last update on 2015-06-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.