Atrial FibrillationArrhythmias, Cardiac
Dr. Gregory B. Vanzant, DO
NPI1932196839PAC ID9830167204
- Medicare services, 2024
- 3,899
- Medicare patients, 2024
- 1,402
- Part D claims, 2024
- 9,316
- Clinical trials
- 1
- Hospital affiliations
- 5
- Practice address
- 4050 West Memorial Road, Oklahoma City, OK 73120
- Practice phone
- Call (405) 608-3200
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Vanzant's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Gregory B. Vanzant is a cardiologist in Oklahoma City, Oklahoma
Dr. Vanzant practices at Oklahoma Heart Hospital North in Oklahoma City, Oklahoma, part of Oklahoma Heart Hospital.
Dr. Vanzant's NPI, 1932196839, was assigned on October 5, 2005. Dr. Vanzant graduated from Nova Southeastern College of Osteo Medicine in 1993. Dr. Vanzant holds Oklahoma license 3703.
NPI and contact details
- NPI
- 1932196839NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9830167204
- NPI enumeration date
- October 5, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (405) 608-3200
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 59
- Medical school graduation
- 1993
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Gregory B. Vanzant practices at Oklahoma Heart Hospital North in Oklahoma City, Oklahoma
Dr. Vanzant's primary practice is Oklahoma Heart Hospital North, at 4050 West Memorial Road, Oklahoma City, OK 73120 in Oklahoma County. The practice phone is (405) 608-3200.
- Oklahoma Heart Hospital North4050 West Memorial Road, Oklahoma City, OK 73120 · Oklahoma CountyPhone(405) 608-3200
Source: Dmand AI Affiliation Data
Dr. Gregory B. Vanzant is affiliated with 7 sites of care and 3 medical groups
Dr. Vanzant's primary practice is Oklahoma Heart Hospital North in Oklahoma City, Oklahoma, part of Oklahoma Heart Hospital. Dr. Vanzant is also affiliated with Mercy Hospital Oklahoma City. The medical group on file is Oklahoma Heart Hospital. Dmand AI also links Dr. Vanzant to 3 more hospitals, 2 group practices and clinics and 2 medical groups, each named with a free account.
Mercy Hospital Oklahoma CityOklahoma Heart Hospital3 hospitalsNames with a free account2 group practices and clinicsNames with a free account2 medical groupsNames with a free account
See all 10 affiliations for Dr. VanzantSources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Gregory B. Vanzant's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Vanzant practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Oklahoma Heart Hospital North | Available with a free account |
| +6 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Gregory B. Vanzant is one of 186 cardiologists in Oklahoma
Cardiovascular disease is Dr. Vanzant's primary specialty in the NPI Registry, under taxonomy code 207RC0000X. Dr. Vanzant is licensed in Oklahoma.
Specialties and state licenses
- Cardiovascular disease, OklahomaPrimary
Cardiologists near Dr. Vanzant
Counts of cardiologists with a Dmand AI profile, by place and practice. Each opens the list.
186cardiologists in Oklahoma75cardiologists in Oklahoma City7cardiologists at Oklahoma Heart Hospital North
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Gregory B. Vanzant billed Medicare for 3,899 services in 2024
CMS data shows 3,899 Medicare services from Dr. Vanzant across 22 procedure codes in 2024, for 1,402 Medicare patients. Medicare paid $210,995 for them.
Medicare services, 20243,899
Medicare patients1,402
Paid by Medicare$210,995
Procedure codes22
Dr. Vanzant's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 2,2942024: 1,99313%
- Office and hospital visits
- 2023: 2,0652024: 1,75915%
- Drugs given in the office
- 2023: 1122024: 6839%
- Imaging
- 2023: 372024: 3214%
- Other services
- 2023: 402024: 3123%
- Surgery
- 2023: 162024: 16No change
Where Dr. Vanzant's Medicare services took place, 2024
- In an office1,34635%
- In a facility2,55365%
Dr. Vanzant compared with the Oklahoma median for cardiologists, 2024
- Dr. Vanzant
- Oklahoma median
- Medicare services
- 3,899vs 2,25173% above
- Medicare patients
- 1,402vs 1,06432% above
- Part D claims
- 9,133vs 2,4173.8 times
Medians across 176 cardiologists in Oklahoma with Dmand AI profiles that report each measure.
Dr. Vanzant's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Vanzant?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Vanzant and other cardiologists in Oklahoma.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Gregory B. Vanzant treated 1,402 Medicare patients in 2024, average age 76
CMS counts 1,402 Medicare patients who saw Dr. Vanzant in 2024. The largest group is 75 to 84, with 560 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 8% are also on Medicaid. Their average risk score is 1.86, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Vanzant's median patient age at 74, with 49% women.
Medicare patients, 20241,402
Average age76
Average risk score1.86
Also on Medicaid8%
Dr. Vanzant's Medicare patients by age, 2024
Dr. Vanzant's Medicare patients by sex, 2024
- Women71551%
- Men68749%
Chronic conditions among Dr. Vanzant's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis59%
- Ischemic heart disease54%
- Chronic kidney disease43%
- Atrial fibrillation40%
- Heart failure40%
- Diabetes39%
Share of Medicare patients with each condition. A patient can have several.
Dr. Vanzant's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 74
Patient panel by sex, all payers
- Women49%
- Men51%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Gregory B. Vanzant wrote 9,316 Medicare Part D claims in 2024
In 2024, Dr. Vanzant wrote 9,316 Medicare Part D claims for 766 patients. 89% of them were for generic drugs. CMS names the drug for 9,133 of them, across 51 drugs with 11 or more claims each, at $1,080,672 in total drug cost. In 2023, CMS named 8,100 claims across 47 drugs.
Part D claims, 20249,316
Drugs named by CMS51
Total drug cost$1.1M
Part D patients766
Dr. Vanzant's Part D claims by kind of drug, 2024
- Generic8,257 claims89%
- Brand-name1,059 claims11%
Dr. Vanzant's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 8,1002024: 9,13313%
Drugs named by CMS: 51 in 2024, 47 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Gregory B. Vanzant takes part in Medicare
Dr. Vanzant accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Gregory B. Vanzant has worked on 1 clinical trial
Dmand AI links Dr. Vanzant to 1 clinical trial. Conditions studied include Atrial Fibrillation and Arrhythmias, Cardiac.
Conditions in Dr. Vanzant's trials
- Atrial Fibrillation
- Arrhythmias, Cardiac
Investigators on the most trials with Dr. Vanzant
- Hetal Rajendra Bhakta1 shared trial
- Robert S. Fishel, MD1 shared trial
- Dhanunjaya Reddy Lakkireddy, MD1 shared trial
Recent clinical trials with Dr. Vanzant
Sources: ClinicalTrials.gov (National Library of Medicine); and Dmand AI Research Linkage
Dr. Gregory B. Vanzant received $1,724 in industry payments from 2016 to 2024
CMS Open Payments shows 72 general payments to Dr. Vanzant from 13 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 98% of the total. Medtronic Vascular, Inc. paid the most, $465.
General payments to Dr. Vanzant by program year, 2016 to 2024
General payments to Dr. Vanzant by kind, 2016 to 2024
$1.7Kin total
- Food and beverage$1,69898%
- Education$262%
Companies that paid Dr. Vanzant the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Gregory B. Vanzant graduated from Nova Southeastern College of Osteo Medicine
Dr. Vanzant graduated from Nova Southeastern College of Osteo Medicine in 1993.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Gregory B. Vanzant's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Clinical trials and co-investigators | ClinicalTrials.gov (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Gregory B. Vanzant
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Gregory B. Vanzant's NPI number?
Dr. Gregory B. Vanzant's NPI number is 1932196839. It was assigned on October 5, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Gregory B. Vanzant?
Dr. Gregory B. Vanzant is a cardiologist in Oklahoma City, Oklahoma. The primary specialty in the NPI Registry is Cardiovascular Disease Physician (taxonomy code 207RC0000X).
Where does Dr. Gregory B. Vanzant practice?
Dr. Vanzant practices at 4050 West Memorial Road, Oklahoma City, OK 73120. Dr. Vanzant's primary practice is Oklahoma Heart Hospital North in Oklahoma City, Oklahoma, part of Oklahoma Heart Hospital. Dmand AI also links Dr. Vanzant to 3 hospitals, 2 group practices and clinics and 2 medical groups.
What is Dr. Gregory B. Vanzant's office phone number?
The practice phone on file for Dr. Vanzant is (405) 608-3200.
What is Dr. Gregory B. Vanzant's medical license number?
Dr. Vanzant holds Oklahoma license 3703.
Which hospitals is Dr. Gregory B. Vanzant affiliated with?
Dr. Vanzant practices at Oklahoma Heart Hospital North in Oklahoma City, Oklahoma. Dr. Vanzant is also affiliated with Mercy Hospital Oklahoma City. Dmand AI links Dr. Vanzant to 3 more hospitals.
What medical group is Dr. Gregory B. Vanzant part of?
Dr. Vanzant is linked to Oklahoma Heart Hospital. Dmand AI links Dr. Vanzant to 2 more medical groups.
Does Dr. Gregory B. Vanzant accept Medicare?
Yes. CMS data shows Dr. Vanzant billed Medicare for 3,899 services in 2024, and Dr. Vanzant accepts Medicare assignment.
How many Medicare patients does Dr. Gregory B. Vanzant see?
CMS counts 1,402 Medicare patients who saw Dr. Vanzant in 2024, with an average age of 76.
What services does Dr. Gregory B. Vanzant bill to Medicare?
In 2024, Dr. Vanzant's most billed Medicare services were office visit, established patient (99214), heart test or procedure (93010) and heart test or procedure (93306).
Show 5 more questionsShow fewer questions
Where did Dr. Gregory B. Vanzant go to medical school?
Dr. Vanzant graduated from Nova Southeastern College of Osteo Medicine in 1993.
What drugs does Dr. Gregory B. Vanzant prescribe most?
In 2024 Medicare Part D data, Dr. Vanzant's most prescribed drugs by claims were Metoprolol Succinate, Atorvastatin Calcium and Lisinopril.
Has Dr. Gregory B. Vanzant received payments from drug or device companies?
CMS Open Payments shows $1,724 in general payments to Dr. Vanzant from 13 companies from 2016 to 2024. The largest total came from Medtronic Vascular, Inc.
How long has Dr. Gregory B. Vanzant been practicing?
Dr. Vanzant graduated from medical school in 1993, 33 years ago.
Does Dr. Gregory B. Vanzant do research?
Dr. Vanzant has worked on 1 clinical trial.
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