DR. ALCIBIADES LEONARDO FLEIRES GUTIERREZ MD
NPI 1265011555
Internal Medicine in Sugar Land, TX
About Dr. Alcibiades Leonardo Fleires Gutierrez Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ALCIBIADES LEONARDO FLEIRES GUTIERREZ MD (NPI 1265011555) is an individual internal medicine provider in Sugar Land, Texas, licensed in Texas (V1088) and active in the NPI registry since April 2021. He is enrolled in Medicare PECOS, is affiliated with Houston Methodist Hospital, and is a graduate of Other (2012).
NPPES Registry Identity
Specialties & Licenses 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
Dr. Alcibiades Leonardo Fleires Gutierrez 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 Alcibiades Fleires Gutierrez reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Sugar Land, TX 77479
- Reassigned Medicare billing, Texas enrollment
- 72 clinicians in this Medicare group
Sugar Land, TX 77479
- Reassigned Medicare billing, Texas enrollment
- 53 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.
Houston Methodist Hospital
Acute Care Hospitals · Houston, TXPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 77479 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 Alcibiades Fleires Gutierrez's NPI number?
The NPI number for Alcibiades Fleires Gutierrez is 1265011555. It was assigned to this individual provider in the NPPES registry on April 5, 2021.
Where is Alcibiades Fleires Gutierrez located?
Alcibiades Fleires Gutierrez practices at 4545 Sweetwater Blvd Ste 200, Sugar Land, TX 77479. The listed phone number is (281) 565-1112.
What is Alcibiades Fleires Gutierrez's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Alcibiades Fleires Gutierrez enrolled in Medicare?
Yes. Alcibiades Fleires Gutierrez 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 Alcibiades Fleires Gutierrez's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alcibiades Fleires Gutierrez reassigns Medicare benefits to 2 organizations: Houston In Patient Physician Associates PLLC (Sugar Land, TX) and Vanguard Inpatient Physicians, PLLC (Sugar Land, 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 Alcibiades Fleires Gutierrez's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Alcibiades Fleires Gutierrez 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 2 other insurers list Alcibiades Fleires Gutierrez 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 Alcibiades Fleires Gutierrez affiliated with any hospitals?
According to CMS data, Alcibiades Fleires Gutierrez is affiliated with Houston Methodist Hospital.
When was this NPI record last updated?
The NPPES record for Alcibiades Fleires Gutierrez was last updated on March 5, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.
# Dr. Alcibiades Leonardo Fleires Gutierrez, MD · NPI 1265011555
Internal Medicine physician in Sugar Land, Texas. Individual provider, active in the CMS NPPES registry since April 5, 2021.
## Identity
- **NPI:** 1265011555 (Entity type: Individual)
- **Enumerated:** April 5, 2021
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** V1088 (Texas)
- **Sole proprietor:** No
## Practice location
- **Address:** 4545 SWEETWATER BLVD STE 200, Sugar Land, TX 77479-3010
- **Phone:** (281) 565-1112
## 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): Houston In Patient Physician Associates PLLC (NPI 1871892646, Sugar Land, TX); Vanguard Inpatient Physicians, PLLC (NPI 1801339742, Sugar Land, TX) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2012
## Record status
- **NPPES last updated:** March 5, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1265011555) · Data from the CMS NPPES public registry.