ABHISHEK CHALLA
NPI 1477968659
Internal Medicine - Gastroenterology in San Antonio, TX
About Abhishek Challa NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ABHISHEK CHALLA (NPI 1477968659) is an individual gastroenterology provider in San Antonio, Texas, licensed in Kansas (94-09778) and active in the NPI registry since June 2014. He is enrolled in Medicare PECOS, is affiliated with Christus Santa Rosa Medical Center, and is a graduate of Other (2011).
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
Abhishek Challa 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 Reassignment
Medicare enrollment records show Abhishek Challa reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Houston, TX 77098
- Reassigned Medicare billing, Texas enrollment
- 575 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 7
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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Christus Santa Rosa Medical Center
Acute Care Hospitals · San Antonio, TXMethodist Hospital
Acute Care Hospitals · San Antonio, TXPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 78251 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.
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 Abhishek Challa's NPI number?
The NPI number for Abhishek Challa is 1477968659. It was assigned to this individual provider in the NPPES registry on June 25, 2014.
Where is Abhishek Challa located?
Abhishek Challa practices at 11212 State Highway 151 Medical Plaza, 1 Suite 250, San Antonio, TX 78251. The listed phone number is (210) 614-1234.
What is Abhishek Challa's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.
Is Abhishek Challa enrolled in Medicare?
Yes. Abhishek Challa 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 organization bills Medicare for Abhishek Challa's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Abhishek Challa reassigns Medicare benefits to Texas Digestive Disease Consultants, PLLC (Houston, TX). 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 Abhishek Challa's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Abhishek Challa accept?
Health plans from Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Superior HealthPlan and Ambetter of Oklahoma and 5 other insurers list Abhishek Challa 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 Abhishek Challa affiliated with any hospitals?
According to CMS data, Abhishek Challa is affiliated with Christus Santa Rosa Medical Center and Methodist Hospital.
When was this NPI record last updated?
The NPPES record for Abhishek Challa was last updated on June 3, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Abhishek Challa · NPI 1477968659
Gastroenterology physician in San Antonio, Texas. Individual provider, active in the CMS NPPES registry since June 25, 2014.
## Identity
- **NPI:** 1477968659 (Entity type: Individual)
- **Enumerated:** June 25, 2014
- **Primary specialty:** Internal Medicine - Gastroenterology · taxonomy 207RG0100X
- **State license:** 94-09778 (Kansas)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 11212 STATE HIGHWAY 151 MEDICAL PLAZA, 1, SUITE 250, San Antonio, TX 78251-4507
- **Phone:** (210) 614-1234
## 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:** Texas Digestive Disease Consultants, PLLC (NPI 1013429968, Houston, TX), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2011
## Record status
- **NPPES last updated:** June 3, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1477968659) · Data from the CMS NPPES public registry.