Quick answers
- Does Sergio Calixto-Montanez accept Medicare assignment?
- Yes. Medicare's clinician data says Sergio Calixto-Montanez 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 Sergio Calixto-Montanez see?
- In 2024, CMS data shows 69 Original Medicare patients and 629 services for Sergio Calixto-Montanez. This counts Original Medicare only and measures volume, not quality.
- What is Sergio Calixto-Montanez's NPI number?
- 1316268162. 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 Sergio Calixto-Montanez, 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 | 69 |
|---|---|
| Services billed to Medicare | 629 |
| Different services or procedures | 36 |
| Participating Medicare provider | Yes |
| Average age of these patients | 69 |
Most frequent services
- Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)184 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)177 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)42 services
- Administration of influenza virus vaccine (G0008)20 services
- Advance care planning, first 30 minutes (99497)18 services
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 pressure71%
- High cholesterol68%
- Diabetes46%
- Chronic kidney disease29%
- Arthritis22%
- Ischemic heart disease17%
Practice locations
Addresses where Sergio Calixto-Montanez is enrolled with Medicare (CMS data updated October 2, 2026).
- 1605 N Garland Ave, Suite AGarland, TX 75040 (214) 501‑4135
- 2040 N Belt Line Rd, Suite 200Mesquite, TX 75150 (214) 381‑1910
- 6300 Samuell Blvd, Suite 120Dallas, TX 75228 (214) 381‑1910
Group practices
Medicare enrollment lists Sergio Calixto-Montanez as a member of these groups (CMS data updated October 2, 2026).
- Grace Southern Medical Clinic PLLC4 clinicians in the group
- Union Medical Center PLLC2 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Garland
Clinicians with the same Medicare primary specialty in Garland, TX — not a recommendation.
Other clinicians in Grace Southern Medical Clinic PLLC
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 | 2009 (17 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1316268162 |
| 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