WILLIAM HICKS HADNOTT III MD
NPI 1194832709
Orthopaedic Surgery in Bellaire, TX
About William Hicks Hadnott Iii Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
WILLIAM HICKS HADNOTT III MD (NPI 1194832709) is an individual orthopaedic surgery provider in Bellaire, Texas, licensed in Texas (L7406) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS, is affiliated with Houston Methodist Hospital, and is a graduate of University Of Texas Medical Branch At Galveston (1998).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 5
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
William Hicks Hadnott Iii 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 Reassignments
2Medicare enrollment records show William Hadnott reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Houston, TX 77027
- Reassigned Medicare billing, Texas enrollment
- 12 clinicians in this Medicare group
Houston, TX 77024
- Reassigned Medicare billing, Texas enrollment
- 17 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 5
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.
Houston Methodist Hospital
Acute Care Hospitals · Houston, TXSt Luke's Sugar Land Hospital
Acute Care Hospitals · Sugar Land, TXPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 77401 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.
Other Providers at the Same Location NPPES 12
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BELLAIRE, TX 77401
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 William Hadnott's NPI number?
The NPI number for William Hadnott is 1194832709. It was assigned to this individual provider in the NPPES registry on August 23, 2006.
Where is William Hadnott located?
William Hadnott practices at 5420 West Loop S Ste 2400, Bellaire, TX 77401. The listed phone number is (713) 486-3550.
What is William Hadnott's specialty?
The primary specialty registered for this NPI is Orthopaedic Surgery with taxonomy code 207X00000X.
Is William Hadnott enrolled in Medicare?
Yes. William Hadnott 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 William Hadnott's services?
According to the CMS Revalidation Reassignment List (October 2026 release), William Hadnott reassigns Medicare benefits to 2 organizations: Center For Spine, Sports And Rehabilitation Excellence PA (Houston, TX) and Texas Regional Physicians (Houston, TX). 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 William Hadnott's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does William Hadnott accept?
Health plans from Ambetter Health, Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections and Ambetter from Superior HealthPlan and 4 other insurers list William Hadnott 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 William Hadnott affiliated with any hospitals?
According to CMS data, William Hadnott is affiliated with Houston Methodist Hospital and St Luke's Sugar Land Hospital.
When was this NPI record last updated?
The NPPES record for William Hadnott was last updated on August 31, 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.
# William Hicks Hadnott III, MD · NPI 1194832709
Orthopaedic Surgery physician in Bellaire, Texas. Individual provider, active in the CMS NPPES registry since August 23, 2006.
## Identity
- **NPI:** 1194832709 (Entity type: Individual)
- **Enumerated:** August 23, 2006
- **Primary specialty:** Orthopaedic Surgery · taxonomy 207X00000X
- **State license:** L7406 (Texas)
- **Sole proprietor:** No
## Practice location
- **Address:** 5420 WEST LOOP S STE 2400, Bellaire, TX 77401-2118
- **Phone:** (713) 486-3550 · **Fax:** (713) 383-1473
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Center For Spine, Sports And Rehabilitation Excellence PA (NPI 1720228299, Houston, TX); Texas Regional Physicians (NPI 1467011643, Houston, TX) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Texas Medical Branch At Galveston, class of 1998
## Record status
- **NPPES last updated:** August 31, 2022
- **Other identifiers:** Other 0021KG (TX); Other DA3051; Medicaid 163832201 (TX); and 2 more
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Source: [NPI Profile](https://npiprofile.com/npi/1194832709) · Data from the CMS NPPES public registry.