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Neurology

Maria Diaz Ordonez, MD

Works at hospitals in Englewood, NJ · New York, NY · New Jersey, New York

Summary

Dr. Maria Diaz Ordonez, MD is a neurologist at 350 Engle St, 6th Floor Berrie, Englewood, NJ 07631. Phone: (201) 608-2800. Accepts Medicare assignment. In 2024, Maria Diaz Ordonez had 76 Original Medicare patients and 411 services. NPI 1609258573. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Neurologist (Medicare lists Neurology)
  • Address: 350 Engle St, 6th Floor Berrie, Englewood, NJ 07631 · Directions (1 more location)
  • Phone: (201) 608‑2800
  • Medicare: Accepts Medicare assignment
  • Hospitals: Englewood Hospital and Medical Center, New York-Presbyterian Hospital
  • Group practice: Trustees of Columbia University in the City of New York (+1 more)
  • Medical school: graduated 2014 (12 years since medical school)
  • Gender (as listed): Female
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Maria Diaz Ordonez, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Maria Diaz Ordonez accept Medicare assignment?
Yes. Medicare's clinician data says Maria Diaz Ordonez 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 Diaz Ordonez see?
In 2024, CMS data shows 76 Original Medicare patients and 411 services for Maria Diaz Ordonez. This counts Original Medicare only and measures volume, not quality.
What is Maria Diaz Ordonez's NPI number?
1609258573. 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 Diaz Ordonez, 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 patients76
Services billed to Medicare411
Different services or procedures11
Participating Medicare providerYes
Average age of these patients71

Most frequent services

  1. 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)122 services
  2. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)118 services
  3. Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or (G2212)67 services
  4. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)37 services
  5. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)26 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%
  • Depression50%
  • Arthritis49%
  • Diabetes45%
  • Anxiety43%

Hospitals where Maria Diaz Ordonez works

Medicare's Facility Affiliation Data lists Maria Diaz Ordonez 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.

Practice locations

Addresses where Maria Diaz Ordonez is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Maria Diaz Ordonez as a member of these groups (CMS data updated October 2, 2026).

  • Trustees of Columbia University in the City of New York2,296 clinicians in the group
  • Medical Associates of Englewood PC540 clinicians in the group

Specialties

Find other Neurology doctors in New Jersey →

Other neurologists in Englewood

Clinicians with the same Medicare primary specialty in Englewood, NJ — not a recommendation.

All neurologists in Englewood →

Other clinicians in Trustees of Columbia University in the City of New York

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Graduation year2014 (12 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1609258573
CorrectionsReport 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

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians