Acute Coronary SyndromeAdenosine MonophosphateCause of Death
Dr. Robert Steven Iwaoka, MD
NPI1144220377
- Medicare services, 2023
- 688
- Part D claims, 2024
- 1,147
- Publications
- 1
- Clinical trials
- 1
- Hospital affiliations
- 1
- Practice address
- 200 Hawthorne Lane Box 33549, Charlotte, NC 28233
- Practice phone
- Call (704) 384-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Novant Health Presbyterian Medical Center - Unit
Acute Care Hospital-Unit · Charlotte, North Carolina
Find Dr. Iwaoka's professional email, personal email and mobile number
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Dr. Robert Steven Iwaoka is an interventional cardiologist in Charlotte, North Carolina
Dr. Iwaoka practices at Novant Health Presbyterian Medical Center - Unit in Charlotte, North Carolina.
Dr. Iwaoka's NPI, 1144220377, was assigned on July 29, 2005. Dr. Iwaoka holds North Carolina license 26671.
NPI and contact details
- NPI
- 1144220377NPI Registry (opens in a new tab)
- NPI enumeration date
- July 29, 2005
- NPI status
- Active
- Practice phone
- (704) 384-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 71
- Medical school graduation
- 1981
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Robert Steven Iwaoka practices at Novant Health Presbyterian Medical Center - Unit in Charlotte, North Carolina
Dr. Iwaoka's primary practice is Novant Health Presbyterian Medical Center - Unit, at 200 Hawthorne Lane Box 33549, Charlotte, NC 28233 in Mecklenburg County. The practice phone is (704) 384-4000.
- Novant Health Presbyterian Medical Center - Unit200 Hawthorne Lane Box 33549, Charlotte, NC 28233 · Mecklenburg CountyPhone(704) 384-4000
Source: Dmand AI Affiliation Data
Dr. Robert Steven Iwaoka is affiliated with 3 sites of care and 1 medical group
Dr. Iwaoka's primary practice is Novant Health Presbyterian Medical Center - Unit in Charlotte, North Carolina. The medical group on file is Novant Health Senior Care - SouthPark. Dmand AI also links Dr. Iwaoka to 1 more behavioral health center and 1 group practice or clinic, each named with a free account.
Novant Health Presbyterian Medical Center - UnitPrimary
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Robert Steven Iwaoka's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Iwaoka practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Novant Health Presbyterian Medical Center - Unit | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Robert Steven Iwaoka is one of 178 interventional cardiologists in North Carolina
Interventional cardiology is Dr. Iwaoka's primary specialty in the NPI Registry, under taxonomy code 207RI0011X. Dr. Iwaoka is licensed in North Carolina.
Specialties and state licenses
- Interventional cardiology, North CarolinaPrimary
Interventional cardiologists near Dr. Iwaoka
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. Robert Steven Iwaoka billed Medicare for 688 services in 2023
CMS data shows 688 Medicare services from Dr. Iwaoka across 5 procedure codes in 2023. Medicare paid $36,553 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 2023688
Paid by Medicare$36,553
Procedure codes5
Dr. Iwaoka's Medicare services by type, 2022 to 2023
- 2022
- 2023
- Office and hospital visits
- 2022: 6402023: 49023%
- Tests and treatments
- 2022: 2012023: 1981%
Dr. Iwaoka compared with the North Carolina median for interventional cardiologists, 2023
- Dr. Iwaoka
- North Carolina median
- Medicare services
- 688vs 1,30747% below
- Part D claims
- 983vs 1,75844% below
Medians across 175 interventional cardiologists in North Carolina with Dmand AI profiles that report each measure.
Dr. Iwaoka's most billed Medicare procedure codes, 2023
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. Iwaoka?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Iwaoka and other interventional cardiologists in North Carolina.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Robert Steven Iwaoka's patients have a median age of 61
Across all payers, Dmand AI patient panel data puts Dr. Iwaoka's median patient age at 61, with 60% women.
Dr. Iwaoka's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 61
Patient panel by sex, all payers
- Women60%
- Men40%
Source: Dmand AI Patient Panel Data
Dr. Robert Steven Iwaoka wrote 1,147 Medicare Part D claims in 2024
In 2024, Dr. Iwaoka wrote 1,147 Medicare Part D claims for 279 patients. 90% of them were for generic drugs. CMS names the drug for 983 of them, across 19 drugs with 11 or more claims each, at $77,858 in total drug cost. In 2023, CMS named 4,516 claims across 48 drugs.
Part D claims, 20241,147
Drugs named by CMS19
Total drug cost$77,858
Part D patients279
Dr. Iwaoka's Part D claims by kind of drug, 2024
- Generic1,037 claims90%
- Brand-name110 claims10%
Dr. Iwaoka'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: 4,5162024: 98378%
Drugs named by CMS: 19 in 2024, 48 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
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Dr. Robert Steven Iwaoka has 1 publication on record
Dmand AI links 1 paper to Dr. Iwaoka in 2013. Dr. Iwaoka's most frequent co-authors are William French, Charles M. Gibson, MD and Harinder S. Gogia, MD.
Papers1
Dr. Iwaoka's most frequent co-authors
Recent publications by Dr. Iwaoka
See who Dr. Iwaoka researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Iwaoka works with, so you can find a warm path to the right interventional cardiologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Robert Steven Iwaoka has worked on 1 clinical trial
Dmand AI links Dr. Iwaoka to 1 clinical trial. Conditions studied include Hemorrhagic Stroke and Thrombocytopenia.
Conditions in Dr. Iwaoka's trials
- Hemorrhagic Stroke
- Thrombocytopenia
Investigators on the most trials with Dr. Iwaoka
- Robert Joseph Applegate, MD1 shared trial
- Joseph R. Aragon, MD1 shared trial
- Usman Baber, MD1 shared trial
Recent clinical trials with Dr. Iwaoka
Hemorrhagic StrokeThrombocytopeniaXIENCEDAPT (aspirin and/or P2Y12 receptor inhibitor)
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. Robert Steven Iwaoka received $4,374 in industry payments from 2016 to 2025
CMS Open Payments shows 168 general payments to Dr. Iwaoka from 26 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Boston Scientific Corporation paid the most, $854.
General payments to Dr. Iwaoka by program year, 2016 to 2025
General payments to Dr. Iwaoka by kind, 2016 to 2025
$4.4Kin total
- Food and beverage$4,368100%
- Education$60%
Companies that paid Dr. Iwaoka the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Robert Steven Iwaoka'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 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 Data |
| 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Clinical trials and co-investigators | Dmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Robert Steven Iwaoka
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. Robert Steven Iwaoka's NPI number?
Dr. Robert Steven Iwaoka's NPI number is 1144220377. It was assigned on July 29, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Robert Steven Iwaoka?
Dr. Robert Steven Iwaoka is an interventional cardiologist in Charlotte, North Carolina. The primary specialty in the NPI Registry is Interventional Cardiology Physician (taxonomy code 207RI0011X).
Where does Dr. Robert Steven Iwaoka practice?
Dr. Iwaoka practices at 200 Hawthorne Lane Box 33549, Charlotte, NC 28233. Dr. Iwaoka's primary practice is Novant Health Presbyterian Medical Center - Unit in Charlotte, North Carolina. Dmand AI also links Dr. Iwaoka to 1 behavioral health center and 1 group practice or clinic.
What is Dr. Robert Steven Iwaoka's office phone number?
The practice phone on file for Dr. Iwaoka is (704) 384-4000.
What is Dr. Robert Steven Iwaoka's medical license number?
Dr. Iwaoka holds North Carolina license 26671.
What medical group is Dr. Robert Steven Iwaoka part of?
Dr. Iwaoka is linked to Novant Health Senior Care - SouthPark.
Does Dr. Robert Steven Iwaoka accept Medicare?
Yes. CMS data shows Dr. Iwaoka billed Medicare for 688 services in 2023.
What services does Dr. Robert Steven Iwaoka bill to Medicare?
In 2023, Dr. Iwaoka's most billed Medicare services were office visit, established patient (99214), heart test or procedure (93010) and office visit, established patient (99215).
What drugs does Dr. Robert Steven Iwaoka prescribe most?
In 2024 Medicare Part D data, Dr. Iwaoka's most prescribed drugs by claims were Atorvastatin Calcium, Metoprolol Succinate and Rosuvastatin Calcium.
Has Dr. Robert Steven Iwaoka received payments from drug or device companies?
CMS Open Payments shows $4,374 in general payments to Dr. Iwaoka from 26 companies from 2016 to 2025. The largest total came from Boston Scientific Corporation.
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How long has Dr. Robert Steven Iwaoka been practicing?
Dr. Iwaoka graduated from medical school in 1981, 45 years ago.
Does Dr. Robert Steven Iwaoka do research?
Dmand AI links 1 publication to Dr. Iwaoka. Dr. Iwaoka has worked on 1 clinical trial.
Who does Dr. Robert Steven Iwaoka publish with?
Dr. Iwaoka's most frequent co-authors are William French (1 shared paper), Charles M. Gibson, MD (1 shared paper) and Harinder S. Gogia, MD (1 shared paper).
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