THOMAS MARCELLO MD
NPI 1871054379
Emergency Medicine in Webster, TX
About Thomas Marcello Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
THOMAS MARCELLO MD (NPI 1871054379) is an individual emergency medicine provider in Webster, Texas, licensed in Texas (S9183) and active in the NPI registry since March 2019. He is enrolled in Medicare PECOS, is affiliated with University Of Texas Medical Branch Galveston, and is a graduate of Tulane University School Of Medicine (2019).
NPPES Registry Identity
Specialties & Licenses
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
Thomas Marcello 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
4Medicare enrollment records show Thomas Marcello reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Galveston, TX 77555
- Reassigned Medicare billing, Texas enrollment
- 67 clinicians in this Medicare group
Angleton, TX 77515
- Reassigned Medicare billing, Texas enrollment
- 59 clinicians in this Medicare group
Austin, TX 78705
- Reassigned Medicare billing, Texas enrollment
- 1,511 clinicians in this Medicare group
San Antonio, TX 78229
- Reassigned Medicare billing, Texas enrollment
- 1,452 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 3
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.
University Of Texas Medical Branch Galveston
Acute Care Hospitals · Galveston, TXHca Houston Healthcare Clear Lake
Acute Care Hospitals · Webster, TXPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 77598 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
WEBSTER, TX 77598
WEBSTER, TX 77598
WEBSTER, TX 77598
WEBSTER, TX 77598
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 Thomas Marcello's NPI number?
The NPI number for Thomas Marcello is 1871054379. It was assigned to this individual provider in the NPPES registry on March 27, 2019.
Where is Thomas Marcello located?
Thomas Marcello practices at 500 W Medical Center Blvd, Webster, TX 77598. The listed phone number is (281) 332-2511.
What is Thomas Marcello's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Thomas Marcello enrolled in Medicare?
Yes. Thomas Marcello 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 Thomas Marcello's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Thomas Marcello reassigns Medicare benefits to 4 organizations: Barrier Reef Emergency Physicians PLLC (Galveston, TX), Texan Star Emergency Physicians PLLC (Angleton, TX), Travis County Emergency Physicians PA (Austin, TX) and Emergency Medicine Services Of Tx, PLLC (San Antonio, 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 Thomas Marcello's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Thomas Marcello accept?
Health plans from Blue Cross and Blue Shield of Texas, Oscar Insurance Company, Sendero Health Plans, Local Nonprofit and UnitedHealthcare list Thomas Marcello 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 Thomas Marcello affiliated with any hospitals?
According to CMS data, Thomas Marcello is affiliated with University Of Texas Medical Branch Galveston and Hca Houston Healthcare Clear Lake.
When was this NPI record last updated?
The NPPES record for Thomas Marcello was last updated on July 13, 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.
# Thomas Marcello, MD · NPI 1871054379
Emergency Medicine physician in Webster, Texas. Individual provider, active in the CMS NPPES registry since March 27, 2019.
## Identity
- **NPI:** 1871054379 (Entity type: Individual)
- **Enumerated:** March 27, 2019
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** S9183 (Texas)
- **Sole proprietor:** No
## Practice location
- **Address:** 500 W MEDICAL CENTER BLVD, Webster, TX 77598-4220
- **Phone:** (281) 332-2511
## 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:** 4 organizations under Medicare reassignment (form CMS-855R): Barrier Reef Emergency Physicians PLLC (NPI 1275761512, Galveston, TX); Texan Star Emergency Physicians PLLC (NPI 1972606168, Angleton, TX); Travis County Emergency Physicians PA (NPI 1962440933, Austin, TX); Emergency Medicine Services Of Tx, PLLC (NPI 1245938729, San Antonio, TX) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Tulane University School Of Medicine, class of 2019
## Record status
- **NPPES last updated:** July 13, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1871054379) · Data from the CMS NPPES public registry.