Monica Saenz-Castillo, PA-C
NPI 1619990967 · Medical Physician Assistant · Raymondville, TX
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Monica Saenz-Castillo, PA-C is a Medical Physician Assistant provider in Raymondville, TX (NPI 1619990967).
Provider details
- NPI number
- 1619990967
- Entity type
- Individual
- Primary specialty
- Medical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- No
- License
- PA04040 (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 tenure25% of score
19 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
67 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 21 | $107 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 17 | $9 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 15 | $8 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 14 | $10 |
Typical Medicare-allowed amounts for these services range $8–$107 (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 · 109 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 223 | 93 |
| Losartan Potassium | 217 | 90 |
| Rosuvastatin Calcium | 165 | 78 |
| Semaglutidebrand: Ozempic | 153 | 41 |
| Levothyroxine Sodium | 151 | 57 |
| Tirzepatidebrand: Mounjaro | 151 | 37 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$771 across 52 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
- 2006-07-26
- Last updated
- 2024-04-09
- Certified
- 2024-04-09
Frequently asked questions
- What is Monica Saenz-Castillo's NPI number?
- Monica Saenz-Castillo's National Provider Identifier (NPI) is 1619990967, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Monica Saenz-Castillo's specialty?
- Monica Saenz-Castillo is listed in the NPPES registry with a primary specialty of Medical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Monica Saenz-Castillo located?
- Monica Saenz-Castillo's practice location on file with NPPES is 646 S Expressway 77, Raymondville, TX 78580-4239.
- What is Monica Saenz-Castillo's phone number?
- The practice phone number listed in the NPPES registry for Monica Saenz-Castillo is (956) 690-4012.
- Does Monica Saenz-Castillo accept Medicare?
- Monica Saenz-Castillo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Monica Saenz-Castillo's NPI active?
- Yes — Monica Saenz-Castillo's NPI (1619990967) is active in the NPPES registry as of the last update on 2024-04-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.