TIRSO A CASTILLO MD
NPI 1083692560
Internal Medicine - Gastroenterology in Dublin, GA
About Tirso A Castillo Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
TIRSO A CASTILLO MD (NPI 1083692560) is an individual gastroenterology provider in Dublin, Georgia, licensed in Georgia (048883) and active in the NPI registry since January 2006. He is enrolled in Medicare PECOS and maintains a secondary practice location in Marietta.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Other Identifiers 5
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Tirso A Castillo Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Tirso Castillo reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Atlanta, GA 30331
- Reassigned Medicare billing, Georgia enrollment
- 3,885 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 2
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 31021 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 3
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 Tirso Castillo's NPI number?
The NPI number for Tirso Castillo is 1083692560. It was assigned to this individual provider in the NPPES registry on January 5, 2006.
Where is Tirso Castillo located?
Tirso Castillo practices at 111 Fairview Park Dr, Dublin, GA 31021. The listed phone number is (478) 272-1366.
What is Tirso Castillo's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.
Is Tirso Castillo enrolled in Medicare?
Yes. Tirso Castillo is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Tirso Castillo's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Tirso Castillo reassigns Medicare benefits to Wellstar Medical Group, LLC (Atlanta, GA). The 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 Tirso Castillo's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Tirso Castillo accept?
Health plans from Alliant Health Plans, Inc. list Tirso Castillo 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.
When was this NPI record last updated?
The NPPES record for Tirso Castillo was last updated on July 12, 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.
# Tirso A Castillo, MD · NPI 1083692560
Gastroenterology physician in Dublin, Georgia. Individual provider, active in the CMS NPPES registry since January 5, 2006.
## Identity
- **NPI:** 1083692560 (Entity type: Individual)
- **Enumerated:** January 5, 2006
- **Primary specialty:** Internal Medicine - Gastroenterology · taxonomy 207RG0100X
- **State license:** 048883 (Georgia)
- **Sole proprietor:** No
## Practice location
- **Address:** 111 FAIRVIEW PARK DR, Dublin, GA 31021-2501
- **Phone:** (478) 272-1366 · **Fax:** (478) 275-2322
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Wellstar Medical Group, LLC (NPI 1205267192, Atlanta, GA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** July 12, 2023
- **Other identifiers:** Medicaid 000872066A (GA); Other 52420599-002 (GA); Other 681242 (GA); and 2 more
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Source: [NPI Profile](https://npiprofile.com/npi/1083692560) · Data from the CMS NPPES public registry.