MRS. GANA R NADIGA MD
NPI 1780681411
Ophthalmology in Longview, TX
About Mrs. Gana R Nadiga Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MRS. GANA R NADIGA MD (NPI 1780681411) is an individual ophthalmology provider in Longview, Texas, licensed in Texas (L9824) and active in the NPI registry since July 2005. She is enrolled in Medicare PECOS, is affiliated with Christus Good Shepherd Medical Center, and maintains a secondary practice location in Marshall.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Other Identifiers 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
Mrs. Gana R Nadiga Md 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 Gana Nadiga reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Marshall, TX 75670
- Reassigned Medicare billing, Texas enrollment
- 3 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 9
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.
Christus Good Shepherd Medical Center
Acute Care Hospitals · Longview, TXPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 75604 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 6
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
LONGVIEW, TX 75604
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 Gana Nadiga's NPI number?
The NPI number for Gana Nadiga is 1780681411. It was assigned to this individual provider in the NPPES registry on July 7, 2005.
Where is Gana Nadiga located?
Gana Nadiga practices at 2010 Bill Owens Pkwy, Longview, TX 75604. The listed phone number is (903) 247-3400.
What is Gana Nadiga's specialty?
The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.
Is Gana Nadiga enrolled in Medicare?
Yes. Gana Nadiga 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 Gana Nadiga's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gana Nadiga reassigns Medicare benefits to Marvin Kenneth Hall III (Marshall, 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 Gana Nadiga's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Gana Nadiga 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 3 other insurers list Gana Nadiga 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 Gana Nadiga affiliated with any hospitals?
According to CMS data, Gana Nadiga is affiliated with Christus Good Shepherd Medical Center.
When was this NPI record last updated?
The NPPES record for Gana Nadiga was last updated on October 14, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 31 days 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.
# Mrs. Gana R Nadiga, MD · NPI 1780681411
Ophthalmology physician in Longview, Texas. Individual provider, active in the CMS NPPES registry since July 7, 2005.
## Identity
- **NPI:** 1780681411 (Entity type: Individual)
- **Enumerated:** July 7, 2005
- **Primary specialty:** Ophthalmology · taxonomy 207W00000X
- **State license:** L9824 (Texas)
- **Sole proprietor:** No
## Practice location
- **Address:** 2010 BILL OWENS PKWY, Longview, TX 75604-6210
- **Phone:** (903) 247-3400 · **Fax:** (903) 238-9183
## 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:** Marvin Kenneth Hall III (NPI 1841301249, Marshall, TX), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Rochester School Of Medicine And Dentistry, class of 1998
## Record status
- **NPPES last updated:** October 14, 2026
- **Other identifiers:** Other 8V9480 (TX); Medicaid 171063402 (TX)
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Source: [NPI Profile](https://npiprofile.com/npi/1780681411) · Data from the CMS NPPES public registry.