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Anesthesiology

Stephen P. Zacker, MD

Works at hospitals in Oklahoma City, OK · Oklahoma

Summary

Stephen P. Zacker, MD (Anesthesiology) is listed by Medicare at 2 hospitals in Oklahoma City, OK. NPI 1861421273. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Stephen P. Zacker, 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

AnesthesiologyPrimary specialty
YesAccepts Medicare assignment
33Years since medical school (graduated 1993)
University Of Oklahoma College Of MedicineMedical school
MaleGender (as listed)
Hpi Physicians LLCGroup practice

Quick answers

Which hospitals does Stephen P. Zacker work at?
Medicare's official clinician data lists Stephen P. Zacker at 2 hospitals: Community Hospital, LLC and Northwest Surgical Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Stephen P. Zacker see patients?
Medicare's clinician data lists 1 practice location in Oklahoma City, OK. Call before your visit to confirm the address.
What is Stephen P. Zacker's specialty?
Medicare lists Anesthesiology as the primary specialty, and also Interventional Pain Management.
Does Stephen P. Zacker accept Medicare assignment?
Yes. Medicare's clinician data says Stephen P. Zacker 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 Stephen P. Zacker?
(405) 242-2713, as listed in official Medicare / NPI Registry data.
What is Stephen P. Zacker's NPI number?
1861421273. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Stephen P. Zacker works

Medicare's Facility Affiliation Data lists Stephen P. Zacker at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Stephen P. Zacker is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Stephen P. Zacker as a member of this group (CMS data updated 2026-10-02).

  • Hpi Physicians LLC48 clinicians in the group

Specialties

Find other Anesthesiology doctors in Oklahoma →

Other anesthesiologists in Oklahoma City

Clinicians with the same Medicare primary specialty in Oklahoma City, OK — not a recommendation.

All anesthesiologists in Oklahoma City →

Clinician information

CredentialMD
Medical schoolUniversity Of Oklahoma College Of Medicine
Graduation year1993
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1861421273
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 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  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