CHIMERE WILLIS NNAJI MD
NPI 1013657741
Family Medicine in Houston, TX
About Chimere Willis Nnaji Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CHIMERE WILLIS NNAJI MD (NPI 1013657741) is an individual family medicine provider in Houston, Texas, licensed in Texas (W0686) and active in the NPI registry since March 2022. He is enrolled in Medicare PECOS, is affiliated with Memorial Hermann Northeast Hospital, and maintains a secondary practice location in Indianapolis.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
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
Chimere Willis Nnaji 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 Chimere Nnaji reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Fulshear, TX 77441
- Reassigned Medicare billing, Texas enrollment
- 1,235 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Memorial Hermann Northeast Hospital
Acute Care Hospitals · Humble, TXPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 77044 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 Chimere Nnaji's NPI number?
The NPI number for Chimere Nnaji is 1013657741. It was assigned to this individual provider in the NPPES registry on March 30, 2022.
Where is Chimere Nnaji located?
Chimere Nnaji practices at 14201 E Sam Houston Pkwy N Ste 500, Houston, TX 77044. The listed phone number is (281) 436-8888.
What is Chimere Nnaji's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Chimere Nnaji enrolled in Medicare?
Yes. Chimere Nnaji 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 Chimere Nnaji's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Chimere Nnaji reassigns Medicare benefits to Memorial Hermann Medical Group (Fulshear, 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 Chimere Nnaji's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Chimere Nnaji accept?
Health plans from Blue Cross and Blue Shield of Texas, Oscar Insurance Company and WellPoint list Chimere Nnaji 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 Chimere Nnaji affiliated with any hospitals?
According to CMS data, Chimere Nnaji is affiliated with Memorial Hermann Northeast Hospital.
When was this NPI record last updated?
The NPPES record for Chimere Nnaji was last updated on September 2, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 months 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.
# Chimere Willis Nnaji, MD · NPI 1013657741
Family Medicine physician in Houston, Texas. Individual provider, active in the CMS NPPES registry since March 30, 2022.
## Identity
- **NPI:** 1013657741 (Entity type: Individual)
- **Enumerated:** March 30, 2022
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** W0686 (Texas)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 14201 E SAM HOUSTON PKWY N STE 500, Houston, TX 77044-6496
- **Phone:** (281) 436-8888 · **Fax:** (281) 436-8889
## 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:** Memorial Hermann Medical Group (NPI 1003985102, Fulshear, TX), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2016
## Record status
- **NPPES last updated:** September 2, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1013657741) · Data from the CMS NPPES public registry.