GIOVANNI SANTILLAN MSN, APRN, ACNPC-AG
NPI 1144922527
Nurse Practitioner - Acute Care in Baytown, TX
About Giovanni Santillan Msn, Aprn, Acnpc-ag NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GIOVANNI SANTILLAN MSN, APRN, ACNPC-AG (NPI 1144922527) is an individual acute care provider in Baytown, Texas, licensed in Texas (1110081) and active in the NPI registry since March 2023. He is enrolled in Medicare PECOS, is affiliated with Houston Methodist Baytown Hospital, and is a graduate of Other (2022).
NPPES Registry Identity
Specialties & Licenses
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
Giovanni Santillan Msn, Aprn, Acnpc-ag 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
2Medicare enrollment records show Giovanni Santillan reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Houston, TX 77030
- Reassigned Medicare billing, Texas enrollment
- 2,407 clinicians in this Medicare group
Houston, TX 77030
- Reassigned Medicare billing, Texas enrollment
- 1,579 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Houston Methodist Baytown Hospital
Acute Care Hospitals · Baytown, 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.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Giovanni Santillan's NPI number?
The NPI number for Giovanni Santillan is 1144922527. It was assigned to this individual provider in the NPPES registry on March 20, 2023.
Where is Giovanni Santillan located?
Giovanni Santillan practices at 4401 Garth Rd, Baytown, TX 77521. The listed phone number is (281) 420-8600.
What is Giovanni Santillan's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Acute Care, with taxonomy code 363LA2100X.
Is Giovanni Santillan enrolled in Medicare?
Yes. Giovanni Santillan 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 Giovanni Santillan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Giovanni Santillan reassigns Medicare benefits to 2 organizations: Tmh Physician Associates PLLC (Houston, TX) and Houston Methodist Specialty Physicians (Houston, TX). 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 Giovanni Santillan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Giovanni Santillan accept?
Health plans from WellPoint list Giovanni Santillan 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 Giovanni Santillan affiliated with any hospitals?
According to CMS data, Giovanni Santillan is affiliated with Houston Methodist Baytown Hospital.
When was this NPI record last updated?
The NPPES record for Giovanni Santillan was last updated on March 23, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Giovanni Santillan, MSN, APRN, ACNPC-AG · NPI 1144922527
Acute Care physician in Baytown, Texas. Individual provider, active in the CMS NPPES registry since March 20, 2023.
## Identity
- **NPI:** 1144922527 (Entity type: Individual)
- **Enumerated:** March 20, 2023
- **Primary specialty:** Nurse Practitioner - Acute Care · taxonomy 363LA2100X
- **State license:** 1110081 (Texas)
- **Sole proprietor:** No
## Practice location
- **Address:** 4401 GARTH RD, Baytown, TX 77521-2122
- **Phone:** (281) 420-8600
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Tmh Physician Associates PLLC (NPI 1275779225, Houston, TX); Houston Methodist Specialty Physicians (NPI 1902614332, Houston, TX) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2022
## Record status
- **NPPES last updated:** March 23, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1144922527) · Data from the CMS NPPES public registry.