Quick answers
- Where does Michael Antonchak see patients?
- Medicare's clinician data lists 1 practice location in New York, NY. Call before your visit to confirm the address.
- What is Michael Antonchak's specialty?
- Medicare lists Pediatric Medicine as the primary specialty.
- Does Michael Antonchak accept Medicare assignment?
- Yes. Medicare's clinician data says Michael Antonchak accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Michael Antonchak?
- (212) 263-3049, as listed in official Medicare / NPI Registry data.
- What is Michael Antonchak's NPI number?
- 1154986552. 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 Michael Antonchak is enrolled with Medicare (CMS data updated 2026-10-02).
- 150 E 32nd StNew York, NY 10016 (212) 263‑3049
Group practices
Medicare enrollment lists Michael Antonchak as a member of this group (CMS data updated 2026-10-02).
- New York University6,134 clinicians in the group
Specialties
- Pediatric Medicineprimary
Other pediatricians in New York
Clinicians with the same Medicare primary specialty in New York, NY — not a recommendation.
Clinician information
| Graduation year | 2019 |
|---|---|
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1154986552 |
| 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
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- 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