Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
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Dr. Myra Ann Gregory, DO, LLC

Individual provider Family Medicine Physician · NPI 1669439899

Dr. Myra Ann Gregory, DO, LLC is registered under Family Practice in Duncan, Oklahoma. Qualified in 1991, 35 years ago. Practices with Duncan Regional Hospital, Inc, a 67-clinician group and accepts Medicare assignment. Licensed in Oklahoma.

Years since qualifying
35
Licensed in
OK
In the registry since
2006
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

1324 N Harville Rd
Duncan, OK 73533-1514
Phone: (580) 252-1373
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

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 3031 (OK)

Record details

NPI number1669439899
Entity typeIndividual (Type 1)
GenderFemale
Credentials DO , LLC
Sole proprietorYes
NPI enumeratedMay 1, 2006
Last updated in NPPESMarch 23, 2022
Certification dateMarch 23, 2022

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolOTHER
Graduated 1991 (35 years in practice)
Group practice Duncan Regional Hospital, Inc — 67 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare

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.

Removal of tissue 383 times · 95th percentile
Removal of skin lesions 1–10 times
Removal or shaving of skin growth 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 patients101
Services billed 471 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

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. Those with a page here are linked.

Colleagues at Duncan Regional Hospital, Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 67 clinicians in the practice; 12 are shown here.

Other providers in Duncan