Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Family Practice

Mark H. Haltrecht, DO

Sees patients in Merrick, NY · New York

Summary

Mark H. Haltrecht, DO (Family Practice) is enrolled with Medicare at 1 practice location in Merrick, NY. NPI 1366510620. Source: CMS National Downloadable File, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Mark H. Haltrecht, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Family PracticePrimary specialty
May acceptAccepts Medicare assignment
YesOffers telehealth
22Years since medical school (graduated 2004)
Philadelphia College Of Osteopathic MedicineMedical school
MaleGender (as listed)
Doctors Medical Office PLLCGroup practice

Quick answers

Where does Mark H. Haltrecht see patients?
Medicare's clinician data lists 1 practice location in Merrick, NY. Call before your visit to confirm the address.
What is Mark H. Haltrecht's specialty?
Medicare lists Family Practice as the primary specialty.
Does Mark H. Haltrecht accept Medicare assignment?
Medicare's clinician data says Mark H. Haltrecht may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
Does Mark H. Haltrecht offer telehealth?
Medicare's clinician data says Mark H. Haltrecht offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Mark H. Haltrecht?
(516) 867-5132, as listed in official Medicare / NPI Registry data.
What is Mark H. Haltrecht's NPI number?
1366510620. 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 Mark H. Haltrecht is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Mark H. Haltrecht as a member of this group (CMS data updated 2026-10-02).

  • Doctors Medical Office PLLC2 clinicians in the group

Specialties

Find other Family Practice doctors in New York →

Other family doctors in Merrick

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

All family doctors in Merrick →

Clinician information

CredentialDO
Medical schoolPhiladelphia College Of Osteopathic Medicine
Graduation year2004
Gender (as listed)Male
Medicare assignmentMay accept for some services
TelehealthOffers telehealth services
NPI (National Provider Identifier)1366510620
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 2026-10-02, retrieved 2026-10-29
  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