Quick answers
- Does Guadalupe Villarreal accept Medicare assignment?
- Yes. Medicare's clinician data says Guadalupe Villarreal 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 Guadalupe Villarreal see?
- In 2024, CMS data shows 18 Original Medicare patients and 50 services for Guadalupe Villarreal. This counts Original Medicare only and measures volume, not quality.
- What is Guadalupe Villarreal's NPI number?
- 1245593763. 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 Guadalupe Villarreal, 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 | 18 |
|---|---|
| Services billed to Medicare | 50 |
| Different services or procedures | 14 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Established patient problem focused exam of visual system (92012)25 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 pressure61%
Practice locations
Addresses where Guadalupe Villarreal is enrolled with Medicare (CMS data updated October 2, 2026).
- 10810 Connecticut AveKensington, MD 20895 (301) 929‑7100
- 1221 Mercantile LnLargo, MD 20774 (301) 618‑5700
- 201 N Washington StFalls Church, VA 22046 (703) 237‑4000
- 6551 Loisdale CtSpringfield, VA 22150 (703) 922‑1000
- 8008 Westpark DrMc Lean, VA 22102 (703) 287‑6400
Group practices
Medicare enrollment lists Guadalupe Villarreal as a member of this group (CMS data updated October 2, 2026).
- Kaiser Foundation Health Plan of the Mid Atlantic States, Inc1,899 clinicians in the group
Specialties
- Ophthalmologyprimary
Other ophthalmologists in Kensington
Clinicians with the same Medicare primary specialty in Kensington, MD — not a recommendation.
Other clinicians in Kaiser Foundation Health Plan of the Mid Atlantic States, Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Harvard Medical School |
| Graduation year | 2012 (14 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1245593763 |
| 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