San Juanita Castellano, FNP
NPI 1023440187 · Family Nurse Practitioner · Visalia, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
San Juanita Castellano, FNP is a Family Nurse Practitioner provider in Visalia, CA (NPI 1023440187).
Provider details
- NPI number
- 1023440187
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP
- Sex
- Female
- Sole proprietor
- No
- License
- 23339 (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
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
1,940 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 783 | $79 |
| Annual Alcohol Misuse Screening, 5 to 15 MinutesG0442 | 170 | $17 |
| Urinalysis, Manual Test81002 | 164 | $3 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 144 | $112 |
| Annual Depression Screening, 5 to 15 MinutesG0444 | 142 | $17 |
| Detection Test By Immunoassay Technique for Severe Acute Respiratory Syndrome Coronavirus and Influenza87428 | 119 | $64 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 23 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 221 | 208 |
| Prednisone | 157 | 145 |
| Azithromycin | 130 | 117 |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 97 | 94 |
| Nirmatrelvir/Ritonavirbrand: Paxlovid | 90 | 90 |
| Ciprofloxacin Hcl | 58 | 50 |
| Albuterol Sulfate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$32 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
Additional practice locations (1)
- 5400 W Hillsdale AveVisalia, CA 93291-8222Phone: (559) 738-7500Fax: (559) 627-0106
Registry dates
- Enumerated
- 2013-07-31
- Last updated
- 2026-02-23
- Certified
- 2026-02-23
Frequently asked questions
- What is San Juanita Castellano's NPI number?
- San Juanita Castellano's National Provider Identifier (NPI) is 1023440187, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is San Juanita Castellano's specialty?
- San Juanita Castellano is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is San Juanita Castellano located?
- San Juanita Castellano's practice location on file with NPPES is 1515 S Mooney Blvd Ste 201, Visalia, CA 93277-4441.
- What is San Juanita Castellano's phone number?
- The practice phone number listed in the NPPES registry for San Juanita Castellano is (559) 295-9157.
- Does San Juanita Castellano accept Medicare?
- San Juanita Castellano is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is San Juanita Castellano's NPI active?
- Yes — San Juanita Castellano's NPI (1023440187) is active in the NPPES registry as of the last update on 2026-02-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.