Quick answers
- Does Mayra K. Perez Martinez accept Medicare assignment?
- Yes. Medicare's clinician data says Mayra K. Perez Martinez 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.
- What is Mayra K. Perez Martinez's NPI number?
- 1205609351. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Mayra K. Perez Martinez works
Medicare's Facility Affiliation Data lists Mayra K. Perez Martinez 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.
- Northwestern Medicine Central Dupage HospitalWinfield, IL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 140242
- Northwestern Medicine McHenryMcHenry, IL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 140116
Practice locations
Addresses where Mayra K. Perez Martinez is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 8; the Medicare profile lists all.
- 10370 Haligus RdHuntley, IL 60142
- 10400 Haligus RdHuntley, IL 60142
- 4201 W Medical Ctr DrMcHenry, IL 60050 (815) 759‑4323
- 4201 W Medical Ctr Dr, Fl 2McHenry, IL 60050 (815) 759‑4800
- 4309 W Medical Ctr Dr, Suite A200McHenry, IL 60050 (815) 759‑8070
Group practices
Medicare enrollment lists Mayra K. Perez Martinez as a member of this group (CMS data updated October 2, 2026).
- Northwestern Medical Faculty Foundation4,503 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Huntley
Clinicians with the same Medicare primary specialty in Huntley, IL — not a recommendation.
Other clinicians in Northwestern Medical Faculty Foundation
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Graduation year | 2022 |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1205609351 |
| 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
- 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