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

Dr. Gregory B Vanzant, DO

Individual provider Cardiovascular Disease Physician · NPI 1932196839

Dr. Gregory B Vanzant, DO is registered under Cardiovascular Disease (Cardiology) in Oklahoma City, Oklahoma. Graduated from Nova Southeastern College of Osteo Medicine in 1993, 33 years ago. Practices with Ohh Physicians LLC, a 133-clinician group and accepts Medicare assignment. Licensed in Oklahoma.

Years since qualifying
33
Trained at
Nova Southeastern College of Osteo Medicine
Licensed in
OK
In the registry since
2005
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

4200 W Memorial Rd Ste 410
Oklahoma City, OK 73120-8305
Phone: (405) 608-4767
Fax: (405) 607-2976
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Cardiovascular Disease Physician (primary) Taxonomy 207RC0000X · Licence 3703 (OK)

Record details

NPI number1932196839
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedOctober 5, 2005
Last updated in NPPESJune 6, 2022
Certification dateJune 6, 2022

Medicare enrollment

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

Medicare specialtyCARDIOVASCULAR DISEASE (CARDIOLOGY)
Also practisesINTERNAL MEDICINE
Medical schoolNOVA SOUTHEASTERN COLLEGE OF OSTEO MEDICINE
Graduated 1993 (33 years in practice)
Group practice Ohh Physicians Llc — 133 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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 patients1,402
Services billed 4,019 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 Ohh Physicians LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 133 clinicians in the practice; 12 are shown here.

Other providers in Oklahoma City