AMBESI NGWA
NPI 1639582174
Internal Medicine in Tyler, TX
About Ambesi Ngwa NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
AMBESI NGWA (NPI 1639582174) is an individual internal medicine provider in Tyler, Texas, licensed in Texas (P9236) and active in the NPI registry since June 2014. He is enrolled in Medicare PECOS, is affiliated with Christus Mother Frances Hospital, and maintains 3 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 3
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
Ambesi Ngwa 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
7Medicare enrollment records show Ambesi Ngwa reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Tyler, TX 75701
- Reassigned Medicare billing, Texas enrollment
- 43 clinicians in this Medicare group
Tyler, TX 75702
- Reassigned Medicare billing, Texas enrollment
- 2,745 clinicians in this Medicare group
Longview, TX 75601
- Reassigned Medicare billing, Texas enrollment
- 334 clinicians in this Medicare group
Mansfield, TX 76063
- Reassigned Medicare billing, Texas enrollment
- 994 clinicians in this Medicare group
Fort Worth, TX 76104
- Reassigned Medicare billing, Texas enrollment
- Medicare enrollment name: Sound Inpatient Physicians Of Texas I, Inc
- 478 clinicians in this Medicare group
Humble, TX 77338
- Reassigned Medicare billing, Texas enrollment
- 2,009 clinicians in this Medicare group
San Antonio, TX 78216
- Reassigned Medicare billing, Texas enrollment
- 688 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 4
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 Mother Frances Hospital
Acute Care Hospitals · Tyler, TXPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 75701 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.
Reported Quality Measures
Referred Medical Equipment & Supplies CMS DME claims 4
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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 Ambesi Ngwa's NPI number?
The NPI number for Ambesi Ngwa is 1639582174. It was assigned to this individual provider in the NPPES registry on June 3, 2014.
Where is Ambesi Ngwa located?
Ambesi Ngwa practices at 800 E Dawson St, Tyler, TX 75701. The listed phone number is (903) 606-4129.
What is Ambesi Ngwa's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Ambesi Ngwa enrolled in Medicare?
Yes. Ambesi Ngwa 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 Ambesi Ngwa's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ambesi Ngwa reassigns Medicare benefits to 7 organizations: Tyler Physician Services, PLLC (Tyler, TX), Christus Trinity Clinic Texas (Tyler, TX), North Texas Physician Services, PLLC (Longview, TX), Lonestar Hospital Medicine Associates, PA (Mansfield, TX), Sound Inpatient Physicians Of Texas 1, Inc (Fort Worth, TX) and 2 more organizations, listed in the Medicare section above. 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 Ambesi Ngwa's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Ambesi Ngwa accept?
Health plans from Blue Cross and Blue Shield of Texas and CHRISTUS Health Plan list Ambesi Ngwa 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 Ambesi Ngwa affiliated with any hospitals?
According to CMS data, Ambesi Ngwa is affiliated with Christus Mother Frances Hospital.
When was this NPI record last updated?
The NPPES record for Ambesi Ngwa was last updated on February 21, 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.
# Ambesi Ngwa · NPI 1639582174
Internal Medicine physician in Tyler, Texas. Individual provider, active in the CMS NPPES registry since June 3, 2014.
## Identity
- **NPI:** 1639582174 (Entity type: Individual)
- **Enumerated:** June 3, 2014
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** P9236 (Texas)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 800 E DAWSON ST, Tyler, TX 75701-2036
- **Phone:** (903) 606-4129
## 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:** 7 organizations under Medicare reassignment (form CMS-855R): Tyler Physician Services, PLLC (NPI 1225898034, Tyler, TX); Christus Trinity Clinic Texas (NPI 1285684225, Tyler, TX); North Texas Physician Services, PLLC (NPI 1992586150, Longview, TX); Lonestar Hospital Medicine Associates, PA (NPI 1518237429, Mansfield, TX); Sound Inpatient Physicians Of Texas 1, Inc (NPI 1689096570, Fort Worth, TX); and 2 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2012
## Record status
- **NPPES last updated:** February 21, 2024
- **Other identifiers:** Medicaid 342944108 (TX); Other 1F0820 (TX)
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Source: [NPI Profile](https://npiprofile.com/npi/1639582174) · Data from the CMS NPPES public registry.