Quick answers
- Does Maria G. Fuentes accept Medicare assignment?
- Medicare's clinician data says Maria G. Fuentes may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
- How many Medicare patients does Maria G. Fuentes see?
- In 2024, CMS data shows 23 Original Medicare patients and 205 services for Maria G. Fuentes. This counts Original Medicare only and measures volume, not quality.
- What is Maria G. Fuentes's NPI number?
- 1811070261. 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 Maria G. Fuentes, 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 | 23 |
|---|---|
| Services billed to Medicare | 205 |
| Different services or procedures | 17 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Injection of drug or substance under skin or into muscle (96372)51 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)37 services
- Injection, vitamin b-12 cyanocobalamin, up to 1000 mcg (J3420)28 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)22 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 cholesterol75%
- High blood pressure74%
Practice locations
Addresses where Maria G. Fuentes is enrolled with Medicare (CMS data updated October 2, 2026).
- 717 3rd AveChula Vista, CA 91910 (619) 941‑1545
Group practices
Medicare enrollment lists Maria G. Fuentes as a member of this group (CMS data updated October 2, 2026).
- Maria G. Fuentes MD, Inc2 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Chula Vista
Clinicians with the same Medicare primary specialty in Chula Vista, CA — not a recommendation.
Other clinicians in Maria G. Fuentes MD, Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Tulane University School Of Medicine |
| Graduation year | 1999 (27 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1811070261 |
| 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