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Physician Assistant

Sigmund A. McDonald, PA

Sees patients in Brooklyn, NY · Jackson Heights, NY · Ridgewood, NY · New York

Summary

Sigmund A. McDonald, PA is a physician assistant at 1169 Liberty Ave, Brooklyn, NY 11208. Phone: (646) 604-8180. Accepts Medicare assignment. NPI 1619738119. Source: CMS National Downloadable File, updated October 2, 2026.

  • Specialty: Physician assistant
  • Address: 1169 Liberty Ave, Brooklyn, NY 11208 · Directions (4 more locations)
  • Phone: (646) 604‑8180
  • Medicare: Accepts Medicare assignment
  • Group practice: Modern Physician Services PC
  • School: graduated 2023
  • Gender (as listed): Male
Call(646) 604‑8180 NPI Registry record Medicare profile

From official Medicare data

This page shows what Medicare's official clinician data says about Sigmund A. McDonald, 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 Sigmund A. McDonald accept Medicare assignment?
Yes. Medicare's clinician data says Sigmund A. McDonald 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 Sigmund A. McDonald's NPI number?
1619738119. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where Sigmund A. McDonald is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Sigmund A. McDonald as a member of this group (CMS data updated October 2, 2026).

  • Modern Physician Services PC54 clinicians in the group

Specialties

Find other clinicians: Physician Assistant, New York →

Other physician assistants in Brooklyn

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

All physician assistants in Brooklyn →

Other clinicians in Modern Physician Services PC

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

Clinician information

CredentialPA
Graduation year2023
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1619738119
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. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians