MAXWELL MASTROIANNI DO
NPI 1043672215
Anesthesiology in Houston, TX
About Maxwell Mastroianni Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MAXWELL MASTROIANNI DO (NPI 1043672215) is an individual anesthesiology provider in Houston, Texas, licensed in Texas (S4817) and active in the NPI registry since March 2016. He is enrolled in Medicare PECOS, is affiliated with Houston Methodist Hospital, and maintains a secondary practice location in Cleveland.
NPPES Registry Identity
Specialties & Licenses
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
Maxwell Mastroianni 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 Maxwell Mastroianni reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Houston, TX 77042
- Reassigned Medicare billing, Texas enrollment
- Medicare enrollment name: U S Anesthesia Partners Of Texas, PA
- 3,804 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 12
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 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Houston Methodist Hospital
Acute Care Hospitals · Houston, TXHouston Methodist Sugarland Hospital
Acute Care Hospitals · Sugar Land, TXHouston Methodist West Hospital
Acute Care Hospitals · Houston, TXHouston Methodist The Woodlands Hospital
Acute Care Hospitals · The Woodlands, TXMedicare 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
HOUSTON, TX 77042
HOUSTON, TX 77042
HOUSTON, TX 77042
HOUSTON, TX 77042
HOUSTON, TX 77042
HOUSTON, TX 77042
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 Maxwell Mastroianni's NPI number?
The NPI number for Maxwell Mastroianni is 1043672215. It was assigned to this individual provider in the NPPES registry on March 25, 2016.
Where is Maxwell Mastroianni located?
Maxwell Mastroianni practices at 1500 Citywest Blvd Ste 300, Houston, TX 77042. The listed phone number is (713) 620-4000.
What is Maxwell Mastroianni's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Maxwell Mastroianni enrolled in Medicare?
Yes. Maxwell Mastroianni 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 Maxwell Mastroianni's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Maxwell Mastroianni reassigns Medicare benefits to U. S. Anesthesia Partners Of Texas, P.A., (Houston, 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 Maxwell Mastroianni's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Maxwell Mastroianni accept?
Health plans from Blue Cross and Blue Shield of Texas and Oscar Insurance Company list Maxwell Mastroianni 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 Maxwell Mastroianni affiliated with any hospitals?
According to CMS data, Maxwell Mastroianni is affiliated with Houston Methodist Hospital, Houston Methodist Sugarland Hospital, Houston Methodist West Hospital and Houston Methodist The Woodlands Hospital.
When was this NPI record last updated?
The NPPES record for Maxwell Mastroianni was last updated on September 4, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.