Quick answers
- Does Maria P. Fernandez accept Medicare assignment?
- Yes. Medicare's clinician data says Maria P. Fernandez 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 Maria P. Fernandez see?
- In 2024, CMS data shows 401 Original Medicare patients and 3,737 services for Maria P. Fernandez. This counts Original Medicare only and measures volume, not quality.
- What is Maria P. Fernandez's NPI number?
- 1235652207. 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 P. Fernandez, 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 | 401 |
|---|---|
| Services billed to Medicare | 3,737 |
| Different services or procedures | 33 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Injection, faricimab-svoa, 0.1 mg (J2777)1,320 services
- Imaging of retina (92134)768 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)437 services
- Injection, aflibercept, 1 mg (J0178)364 services
- Injection of drug into eye (67028)293 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 pressure75%
- High cholesterol75%
- Arthritis47%
- Diabetes42%
- Chronic kidney disease28%
- Ischemic heart disease27%
Hospitals where Maria P. Fernandez works
Medicare's Facility Affiliation Data lists Maria P. Fernandez at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Advocate Lutheran General HospitalPark Ridge, IL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 140223
- Mt Sinai Hospital Medical CenterChicago, IL · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 140018
Practice locations
Addresses where Maria P. Fernandez is enrolled with Medicare (CMS data updated October 2, 2026).
- 2454 E Dempster St, Suite 400Des Plaines, IL 60016 (847) 299‑0700
- 2653 W Ogden Ave, Fl 3 Suite AChicago, IL 60608 (773) 257‑6672
- California Ave at 15th StChicago, IL 60608 (773) 542‑2000
Group practices
Medicare enrollment lists Maria P. Fernandez as a member of these groups (CMS data updated October 2, 2026).
- Mount Sinai Community Foundation248 clinicians in the group
- Retina Consultants, Ltd11 clinicians in the group
Specialties
- Ophthalmologyprimary
Other ophthalmologists in Des Plaines
Clinicians with the same Medicare primary specialty in Des Plaines, IL — not a recommendation.
Other clinicians in Mount Sinai Community Foundation
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2013 (13 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1235652207 |
| 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- 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