DR. BARRETT O. ATTARHA DO
NPI 1164927950
Internal Medicine - Gastroenterology in Chattanooga, TN
About Dr. Barrett O. Attarha Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. BARRETT O. ATTARHA DO (NPI 1164927950) is an individual gastroenterology provider in Chattanooga, Tennessee, licensed in Tennessee (5737) and active in the NPI registry since March 2018. He is enrolled in Medicare PECOS, is affiliated with Memorial Healthcare System, Inc, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 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
Dr. Barrett O. Attarha Do 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 Barrett Attarha reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Hixson, TN 37343
- Reassigned Medicare billing, Tennessee enrollment
- 158 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.
Memorial Healthcare System, Inc
Acute Care Hospitals · Chattanooga, TNParkridge Medical Center
Acute Care Hospitals · Chattanooga, TNPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 37404 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 14
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
CHATTANOOGA, TN 37404
CHATTANOOGA, TN 37404
CHATTANOOGA, TN 37404
CHATTANOOGA, TN 37404
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 Barrett Attarha's NPI number?
The NPI number for Barrett Attarha is 1164927950. It was assigned to this individual provider in the NPPES registry on March 26, 2018.
Where is Barrett Attarha located?
Barrett Attarha practices at 2200 E 3rd St Ste 200, Chattanooga, TN 37404. The listed phone number is (423) 643-2500.
What is Barrett Attarha's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.
Is Barrett Attarha enrolled in Medicare?
Yes. Barrett Attarha 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 Barrett Attarha's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Barrett Attarha reassigns Medicare benefits to Galen Medical Group, PC (Hixson, TN). 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 Barrett Attarha's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Barrett Attarha accept?
Health plans from Alliant Health Plans, Inc., Ambetter Health, Ambetter from Absolute Total Care, Ambetter from Arkansas Health & Wellness and Ambetter of Alabama and 5 other insurers list Barrett Attarha 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 Barrett Attarha affiliated with any hospitals?
According to CMS data, Barrett Attarha is affiliated with Memorial Healthcare System, Inc and Parkridge Medical Center.
When was this NPI record last updated?
The NPPES record for Barrett Attarha was last updated on June 6, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.