Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Stephen P Zacker, MD

Individual provider Anesthesiology Physician · NPI 1861421273

Dr. Stephen P Zacker, MD is an Anesthesiology in Oklahoma City, Oklahoma. Graduated from University of Oklahoma College of Medicine in 1993, 33 years ago. Practices with Hpi Physicians LLC, a 49-clinician group and accepts Medicare assignment. Licensed in Oklahoma.

Years since qualifying
33
Trained at
University of Oklahoma College of Medicine
Licensed in
OK
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

3100 SW 89th St
Oklahoma City, OK 73159-7900
Phone: (405) 602-8100
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence 20192 (OK)

Record details

NPI number1861421273
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJune 30, 2006
Last updated in NPPESJuly 21, 2022

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyANESTHESIOLOGY
Also practisesINTERVENTIONAL PAIN MANAGEMENT
Medical schoolUNIVERSITY OF OKLAHOMA COLLEGE OF MEDICINE
Graduated 1993 (33 years in practice)
Group practice Hpi Physicians Llc — 49 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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