Dr. Gregory D. Johnsen, MD
- Medicare services, 2024
- 1,235
- Medicare patients, 2024
- 702
- Part D claims, 2024
- 4,339
- Hospital affiliations
- 5
- Industry payments
- $1,523
- Practice address
- 9228 S Mingo E Rd, Tulsa, OK 74133
- Practice phone
- Call (918) 592-0999
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Oklahoma Heart Institute
Tulsa, Oklahoma
Find Dr. Johnsen'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 D. Johnsen is an interventional cardiologist in Tulsa, Oklahoma
Dr. Johnsen practices at Oklahoma Heart Institute in Tulsa, Oklahoma.
Dr. Johnsen's NPI, 1710957105, was assigned on January 26, 2006. Dr. Johnsen graduated from University of Oklahoma College of Medicine in 1988. Dr. Johnsen holds Oklahoma license 16972.
- NPI
- 1710957105NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8325941347
- NPI enumeration date
- January 26, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (918) 592-0999
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 64
- Medical school graduation
- 1988
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Gregory D. Johnsen practices at Oklahoma Heart Institute in Tulsa, Oklahoma
Dr. Johnsen's primary practice is Oklahoma Heart Institute, at 9228 S Mingo E Rd, Tulsa, OK 74133 in Tulsa County. The practice phone is (918) 592-0999.
- Oklahoma Heart Institute9228 S Mingo E Rd, Tulsa, OK 74133 · Tulsa CountyPhone(918) 592-0999
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Gregory D. Johnsen is affiliated with 8 sites of care and 2 medical groups
Dr. Johnsen's primary practice is Oklahoma Heart Institute in Tulsa, Oklahoma. Dr. Johnsen is also affiliated with Hillcrest Medical Center. The medical group on file is Oklahoma Heart Institute. Dmand AI also links Dr. Johnsen to 4 more hospitals, 2 group practices and clinics and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Gregory D. Johnsen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Johnsen practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Oklahoma Heart Institute | Available with a free account |
| +7 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Gregory D. Johnsen is one of 119 interventional cardiologists in Oklahoma
Interventional cardiology is Dr. Johnsen's primary specialty in the NPI Registry, under taxonomy code 207RI0011X. Dr. Johnsen is licensed in Oklahoma.
Specialties and state licenses
- Interventional cardiology, OklahomaPrimary
Interventional cardiologists near Dr. Johnsen
Counts of interventional cardiologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Gregory D. Johnsen billed Medicare for 1,235 services in 2024
CMS data shows 1,235 Medicare services from Dr. Johnsen across 15 procedure codes in 2024, for 702 Medicare patients. Medicare paid $81,074 for them.
Dr. Johnsen's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 7792024: 69611%
- Tests and treatments
- 2023: 4592024: 53917%
- Surgery
- 2023: 252024: 0100%
Where Dr. Johnsen's Medicare services took place, 2024
- In an office93676%
- In a facility29924%
Dr. Johnsen compared with the Oklahoma median for interventional cardiologists, 2024
- Dr. Johnsen
- Oklahoma median
- Medicare services
- 1,235vs 3,10760% below
- Medicare patients
- 702vs 1,20542% below
- Part D claims
- 4,115vs 3,977Close to median
Medians across 120 interventional cardiologists in Oklahoma with Dmand AI profiles that report each measure.
Dr. Johnsen'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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Johnsen and other interventional cardiologists in Oklahoma.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Gregory D. Johnsen treated 702 Medicare patients in 2024, average age 75
CMS counts 702 Medicare patients who saw Dr. Johnsen in 2024. The largest group is 65 to 74, with 290 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 9% are also on Medicaid. Their average risk score is 1.57, 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. Johnsen's median patient age at 73, with 49% women.
Dr. Johnsen's Medicare patients by age, 2024
Dr. Johnsen's Medicare patients by sex, 2024
- Women33748%
- Men36552%
Chronic conditions among Dr. Johnsen's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease73%
- Arthritis50%
- Diabetes40%
- Chronic kidney disease38%
- Heart failure36%
- Atrial fibrillation32%
Share of Medicare patients with each condition. A patient can have several.
Dr. Johnsen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 73
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 D. Johnsen wrote 4,339 Medicare Part D claims in 2024
In 2024, Dr. Johnsen wrote 4,339 Medicare Part D claims for 779 patients. 86% of them were for generic drugs. CMS names the drug for 4,115 of them, across 36 drugs with 11 or more claims each, at $526,598 in total drug cost. In 2023, CMS named 3,998 claims across 39 drugs.
Dr. Johnsen's Part D claims by kind of drug, 2024
- Generic3,742 claims86%
- Brand-name597 claims14%
Dr. Johnsen'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: 3,9982024: 4,1153%
Drugs named by CMS: 36 in 2024, 39 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 D. Johnsen takes part in Medicare
Dr. Johnsen accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Coronary angioplasty and stenting: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Gregory D. Johnsen received $1,523 in industry payments from 2016 to 2025
CMS Open Payments shows 45 general payments to Dr. Johnsen from 15 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 99% of the total. Abbott Laboratories paid the most, $396.
General payments to Dr. Johnsen by program year, 2016 to 2025
General payments to Dr. Johnsen by kind, 2016 to 2025
- Food and beverage$1,50999%
- Education$141%
Companies that paid Dr. Johnsen the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Gregory D. Johnsen graduated from University of Oklahoma College of Medicine
Dr. Johnsen graduated from University of Oklahoma College of Medicine in 1988.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Gregory D. Johnsen'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| 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 D. Johnsen
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 D. Johnsen's NPI number?
Dr. Gregory D. Johnsen's NPI number is 1710957105. It was assigned on January 26, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Gregory D. Johnsen?
Dr. Gregory D. Johnsen is an interventional cardiologist in Tulsa, Oklahoma. The primary specialty in the NPI Registry is Interventional Cardiology Physician (taxonomy code 207RI0011X).
Where does Dr. Gregory D. Johnsen practice?
Dr. Johnsen practices at 9228 S Mingo E Rd, Tulsa, OK 74133. Dr. Johnsen's primary practice is Oklahoma Heart Institute in Tulsa, Oklahoma. Dmand AI also links Dr. Johnsen to 4 hospitals, 2 group practices and clinics and 1 medical group.
What is Dr. Gregory D. Johnsen's office phone number?
The practice phone on file for Dr. Johnsen is (918) 592-0999.
What is Dr. Gregory D. Johnsen's medical license number?
Dr. Johnsen holds Oklahoma license 16972.
Which hospitals is Dr. Gregory D. Johnsen affiliated with?
Dr. Johnsen is affiliated with Hillcrest Medical Center. Dmand AI links Dr. Johnsen to 4 more hospitals.
What medical group is Dr. Gregory D. Johnsen part of?
Dr. Johnsen is linked to Oklahoma Heart Institute. Dmand AI links Dr. Johnsen to 1 more medical group.
Does Dr. Gregory D. Johnsen accept Medicare?
Yes. CMS data shows Dr. Johnsen billed Medicare for 1,235 services in 2024, and Dr. Johnsen accepts Medicare assignment.
How many Medicare patients does Dr. Gregory D. Johnsen see?
CMS counts 702 Medicare patients who saw Dr. Johnsen in 2024, with an average age of 75.
What services does Dr. Gregory D. Johnsen bill to Medicare?
In 2024, Dr. Johnsen's most billed Medicare services were office visit, established patient (99214), heart test or procedure (93000) and special service (99152).
Show 4 more questionsShow fewer questions
Where did Dr. Gregory D. Johnsen go to medical school?
Dr. Johnsen graduated from University of Oklahoma College of Medicine in 1988.
What drugs does Dr. Gregory D. Johnsen prescribe most?
In 2024 Medicare Part D data, Dr. Johnsen's most prescribed drugs by claims were Atorvastatin Calcium, Rosuvastatin Calcium and Metoprolol Succinate.
Has Dr. Gregory D. Johnsen received payments from drug or device companies?
CMS Open Payments shows $1,523 in general payments to Dr. Johnsen from 15 companies from 2016 to 2025. The largest total came from Abbott Laboratories.
How long has Dr. Gregory D. Johnsen been practicing?
Dr. Johnsen graduated from medical school in 1988, 38 years ago.
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