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Psychiatry

Hillary R. Duenas, MD

Sees patients in New York, NY · New York

Summary

Dr. Hillary R. Duenas, MD is a psychiatrist at 506 Lenox Ave, New York, NY 10037. Phone: (212) 939-1840. Accepts Medicare assignment. In 2024, Hillary R. Duenas had 48 Original Medicare patients and 268 services. NPI 1871056523. Source: CMS National Downloadable File, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Psychiatrist (Medicare lists Psychiatry)
  • Address: 506 Lenox Ave, New York, NY 10037 · Directions
  • Phone: (212) 939‑1840
  • Medicare: Accepts Medicare assignment
  • Group practice: Physician Affiliate Group of New York PC
  • Medical school: University Of Alabama School Of Medicine · graduated 2019 (7 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Hillary R. Duenas, 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 Hillary R. Duenas accept Medicare assignment?
Yes. Medicare's clinician data says Hillary R. Duenas 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 Hillary R. Duenas see?
In 2024, CMS data shows 48 Original Medicare patients and 268 services for Hillary R. Duenas. This counts Original Medicare only and measures volume, not quality.
What is Hillary R. Duenas's NPI number?
1871056523. 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 Hillary R. Duenas, 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 patients48
Services billed to Medicare268
Different services or procedures9
Participating Medicare providerYes
Average age of these patients61

Most frequent services

  1. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)215 services
  2. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)39 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).

  • Depression75%
  • Anxiety75%
  • High blood pressure73%
  • High cholesterol60%
  • Diabetes40%
  • Arthritis38%

Practice locations

Addresses where Hillary R. Duenas is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Hillary R. Duenas as a member of this group (CMS data updated October 2, 2026).

  • Physician Affiliate Group of New York PC1,225 clinicians in the group

Specialties

Find other Psychiatry doctors in New York →

Other psychiatrists in New York

Clinicians with the same Medicare primary specialty in New York, NY — not a recommendation.

All psychiatrists in New York →

Other clinicians in Physician Affiliate Group of New York PC

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

Clinician information

CredentialMD
Medical schoolUniversity Of Alabama School Of Medicine
Graduation year2019 (7 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1871056523
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. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  2. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians