MS. SIOMARA CASTRO SANDOVAL NP
NPI 1386980464
Nurse Practitioner in Baytown, TX
About Ms. Siomara Castro Sandoval Np NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MS. SIOMARA CASTRO SANDOVAL NP (NPI 1386980464) is an individual nurse practitioner in Baytown, Texas, licensed in Texas (AP122835) and active in the NPI registry since December 2012. She is enrolled in Medicare PECOS, is affiliated with Harris Health System, and is a graduate of Other (2012).
NPPES Registry Identity
Specialties & Licenses 2
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Ms. Siomara Castro Sandoval Np is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
9Medicare enrollment records show Siomara Sandoval reassigns Medicare billing to 9 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Baytown, TX 77521
- Reassigned Medicare billing, Texas enrollment
- 301 clinicians in this Medicare group
Houston, TX 77062
- Reassigned Medicare billing, Texas enrollment
- 379 clinicians in this Medicare group
Houston, TX 77030
- Reassigned Medicare billing, Texas enrollment
- 2,296 clinicians in this Medicare group
Houston, TX 77030
- Reassigned Medicare billing, Texas enrollment
- 3,111 clinicians in this Medicare group
Houston, TX 77027
- Reassigned Medicare billing, Texas enrollment
- 82 clinicians in this Medicare group
Magnolia, TX 77354
- Reassigned Medicare billing, Texas enrollment
- 101 clinicians in this Medicare group
Beaumont, TX 77706
- Reassigned Medicare billing, Texas enrollment
- 351 clinicians in this Medicare group
Georgetown, TX 78626
- Reassigned Medicare billing, Texas enrollment
- 241 clinicians in this Medicare group
San Antonio, TX 78229
- Reassigned Medicare billing, Texas enrollment
- 1,452 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 4
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Harris Health System
Acute Care Hospitals · Houston, TXPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 77521 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 4
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BAYTOWN, TX 77521
BAYTOWN, TX 77521
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Siomara Sandoval's NPI number?
The NPI number for Siomara Sandoval is 1386980464. It was assigned to this individual provider in the NPPES registry on December 18, 2012.
Where is Siomara Sandoval located?
Siomara Sandoval practices at 7710 Garth Rd Ste A, Baytown, TX 77521. The listed phone number is (281) 783-8162.
What is Siomara Sandoval's specialty?
The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.
Is Siomara Sandoval enrolled in Medicare?
Yes. Siomara Sandoval is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Siomara Sandoval's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Siomara Sandoval reassigns Medicare benefits to 9 organizations: Next Level Mv LLC (Baytown, TX), Nluc PLLC (Houston, TX), Baylor College Of Medicine (Houston, TX), Ut Physicians (Houston, TX), Tk Emergency Physicians Group PLLC (Houston, TX) and 4 more organizations, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Siomara Sandoval's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Siomara Sandoval accept?
Health plans from Ambetter Health, Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections and Ambetter from Superior HealthPlan and 5 other insurers list Siomara Sandoval as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Siomara Sandoval affiliated with any hospitals?
According to CMS data, Siomara Sandoval is affiliated with Harris Health System.
When was this NPI record last updated?
The NPPES record for Siomara Sandoval was last updated on April 23, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Ms. Siomara Castro Sandoval, NP · NPI 1386980464
Nurse Practitioner physician in Baytown, Texas. Individual provider, active in the CMS NPPES registry since December 18, 2012.
## Identity
- **NPI:** 1386980464 (Entity type: Individual)
- **Enumerated:** December 18, 2012
- **Primary specialty:** Nurse Practitioner · taxonomy 363L00000X
- **State license:** AP122835 (Texas)
- **Sole proprietor:** No
## Practice location
- **Address:** 7710 GARTH RD STE A, Baytown, TX 77521-8809
- **Phone:** (281) 783-8162 · **Fax:** (713) 439-7995
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 9 organizations under Medicare reassignment (form CMS-855R): Next Level Mv LLC (NPI 1073168746, Baytown, TX); Nluc PLLC (NPI 1497183461, Houston, TX); Baylor College Of Medicine (NPI 1053352914, Houston, TX); Ut Physicians (NPI 1033157821, Houston, TX); Tk Emergency Physicians Group PLLC (NPI 1942728019, Houston, TX); and 4 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2012
## Record status
- **NPPES last updated:** April 23, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1386980464) · Data from the CMS NPPES public registry.