Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Greg E Halko, MD

Individual provider Orthopaedic Surgery Physician · NPI 1124114764

Greg E Halko, MD practises Orthopedic Surgery in Oklahoma City, Oklahoma. Graduated from University of Oklahoma College of Medicine in 1999, 27 years ago. Practices with Mercy Clinic Oklahoma Communities, a 648-clinician group and accepts Medicare assignment. Licensed in Oklahoma.

Years since qualifying
27
Trained at
University of Oklahoma College of Medicine
Licensed in
OK
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

3301 NW 50th St
Oklahoma City, OK 73112-5627 Not confirmed with CMS for 14 years — call before visiting
Phone: (405) 947-0911
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Orthopaedic Hand Surgery Physician (primary) Taxonomy 207XS0106X · Licence 24394 (OK)
Orthopaedic Surgery Physician Taxonomy 207X00000X · Licence 24394 (OK)

Record details

NPI number1124114764
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 4, 2006
Last updated in NPPESNovember 17, 2011

Medicare enrollment

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

Medicare specialtyORTHOPEDIC SURGERY
Also practisesHAND SURGERY
Medical schoolUNIVERSITY OF OKLAHOMA COLLEGE OF MEDICINE
Graduated 1999 (27 years in practice)
Group practice Mercy Clinic Oklahoma Communities — 648 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Upper limb (arm) arthroscopy (minimally invasive joint repair) 43 times · 83rd percentile
Removal of nail tissue 1–10 times
Removal of tissue 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients388
Services billed 2,750 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Mercy Clinic Oklahoma Communities

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 648 clinicians in the practice; 12 are shown here.

Other providers in Oklahoma City