Anna Castro, FNP
NPI 1841744315 · Family Nurse Practitioner · San Antonio, TX
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Anna Castro, FNP is a Family Nurse Practitioner provider in San Antonio, TX (NPI 1841744315).
Provider details
- NPI number
- 1841744315
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP
- Sex
- Female
- Sole proprietor
- Yes
- License
- F07161205 (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
9 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
190 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 | 92 | $102 |
| Injection of Chemical for Paralysis of Facial and Neck Nerve Muscles on Both Sides of Face64615 | 72 | $123 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 26 | $178 |
Typical Medicare-allowed amounts for these services range $102–$178 (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 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Onabotulinumtoxinabrand: Botox | 121 | 46 |
| Erenumab-Aooebrand: Aimovig Autoinjector | 84 | 15 |
| Galcanezumab-Gnlmbrand: Emgality Pen | 72 | 16 |
| Rimegepant Sulfatebrand: Nurtec Odt | 54 | 12 |
| Sumatriptan Succinate | 39 | 13 |
| Topiramate | 33 | 14 |
| Rizatriptan Benzoate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$40,965 across 171 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
- 2016-08-12
- Last updated
- 2021-06-03
- Certified
- 2021-06-03
Frequently asked questions
- What is Anna Castro's NPI number?
- Anna Castro's National Provider Identifier (NPI) is 1841744315, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Anna Castro's specialty?
- Anna Castro is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Anna Castro located?
- Anna Castro's practice location on file with NPPES is 6333 De Zavala Rd., San Antonio, TX 78249.
- What is Anna Castro's phone number?
- The practice phone number listed in the NPPES registry for Anna Castro is (210) 490-0016.
- Does Anna Castro accept Medicare?
- Anna Castro is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Anna Castro's NPI active?
- Yes — Anna Castro's NPI (1841744315) is active in the NPPES registry as of the last update on 2021-06-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.