Quick answers
- Does Stefanos G. Millas accept Medicare assignment?
- Yes. Medicare's clinician data says Stefanos G. Millas accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Stefanos G. Millas see?
- In 2024, CMS data shows 37 Original Medicare patients and 51 services for Stefanos G. Millas. This counts Original Medicare only and measures volume, not quality.
- What is Stefanos G. Millas's NPI number?
- 1477780096. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Stefanos G. Millas, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 37 |
|---|---|
| Services billed to Medicare | 51 |
| Different services or procedures | 24 |
| Participating Medicare provider | Yes |
| Average age of these patients | 63 |
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol73%
- Diabetes43%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)38%
Practice locations
Addresses where Stefanos G. Millas is enrolled with Medicare (CMS data updated October 2, 2026).
- 5656 Kelley StHouston, TX 77026
- 5656 Kelley St, Fl 2Houston, TX 77026 (713) 566‑5656
- 6410 Fannin StHouston, TX 77030
- 8901 Boone RdHouston, TX 77099 (713) 526‑4243
Group practices
Medicare enrollment lists Stefanos G. Millas as a member of this group (CMS data updated October 2, 2026).
- UT Physicians1,765 clinicians in the group
Specialties
Find other Colorectal Surgery (Proctology) doctors in Texas →
Other colorectal surgeons in Houston
Clinicians with the same Medicare primary specialty in Houston, TX — not a recommendation.
Other clinicians in UT Physicians
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Texas Southwestern Medical School At Dallas |
| Graduation year | 2003 (23 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1477780096 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians