Dr. Dwayne Dennis Callwood, MD
- Medicare services, 2024
- 3,080
- Medicare patients, 2024
- 775
- Part D claims, 2024
- 10,468
- Hospital affiliations
- 5
- Industry payments
- $722
- Practice address
- 2100 Stantonsburg Rd, Greenville, NC 27834
- Practice phone
- Call (252) 847-4100
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Callwood'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. Dwayne Dennis Callwood is a cardiologist in Greenville, North Carolina
Dr. Callwood practices at ECU Health Medical Center in Greenville, North Carolina, part of University Health Systems of Eastern Carolina.
Dr. Callwood's NPI, 1023194479, was assigned on October 28, 2006. Dr. Callwood graduated from University of Virginia School of Medicine in 1989. Dr. Callwood holds North Carolina license 35857.
- NPI
- 1023194479NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4789597709
- NPI enumeration date
- October 28, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (252) 847-4100
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 63
- Medical school graduation
- 1989
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Dwayne Dennis Callwood practices at ECU Health Medical Center in Greenville, North Carolina
Dr. Callwood's primary practice is ECU Health Medical Center, at 2100 Stantonsburg Rd, Greenville, NC 27834 in Pitt County. The practice phone is (252) 847-4100.
- ECU Health Medical Center2100 Stantonsburg Rd, Greenville, NC 27834 · Pitt CountyPhone(252) 847-4100
Source: Dmand AI Affiliation Data
Dr. Dwayne Dennis Callwood is affiliated with 7 sites of care and 6 medical groups
Dr. Callwood's primary practice is ECU Health Medical Center in Greenville, North Carolina, part of University Health Systems of Eastern Carolina. Dr. Callwood is also affiliated with Duke University Hospital. The medical group on file is ECU Health. Dmand AI also links Dr. Callwood to 3 more hospitals, 5 medical groups and 2 group practices and clinics, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Dwayne Dennis Callwood's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Callwood practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| ECU Health Medical Center | Available with a free account |
| +6 more sites and 5 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across University Health Systems of Eastern Carolina and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Dwayne Dennis Callwood is one of 726 cardiologists in North Carolina
Cardiovascular disease is Dr. Callwood's primary specialty in the NPI Registry, under taxonomy code 207RC0000X. Dr. Callwood is board certified in cardiovascular disease by the American Board of Internal Medicine. Dr. Callwood is licensed in North Carolina.
Specialties and state licenses
- Cardiovascular disease, North CarolinaPrimary
Cardiologists near Dr. Callwood
Counts of 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. Dwayne Dennis Callwood billed Medicare for 3,080 services in 2024
CMS data shows 3,080 Medicare services from Dr. Callwood across 25 procedure codes in 2024, for 775 Medicare patients. Medicare paid $169,995 for them.
Dr. Callwood's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 8532024: 1,05724%
- Office and hospital visits
- 2023: 1,0022024: 1,0384%
- Other services
- 2023: 1132024: 473319%
- Lab and pathology
- 2023: 902024: 183103%
- Surgery
- 2023: 842024: 14674%
- Drugs given in the office
- 2023: 1282024: 1243%
- Imaging
- 2023: 792024: 5925%
Where Dr. Callwood's Medicare services took place, 2024
- In an office2,83592%
- In a facility2458%
Dr. Callwood compared with the North Carolina median for cardiologists, 2024
- Dr. Callwood
- North Carolina median
- Medicare services
- 3,080vs 1,71080% above
- Medicare patients
- 775vs 753Close to median
- Part D claims
- 10,100vs 1,8795.4 times
Medians across 724 cardiologists in North Carolina with Dmand AI profiles that report each measure.
Dr. Callwood'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. Callwood and other cardiologists in North Carolina.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Dwayne Dennis Callwood treated 775 Medicare patients in 2024, average age 77
CMS counts 775 Medicare patients who saw Dr. Callwood in 2024. The largest group is 75 to 84, with 298 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 12% are also on Medicaid. Their average risk score is 1.54, 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. Callwood's median patient age at 74, with 53% women.
Dr. Callwood's Medicare patients by age, 2024
Dr. Callwood's Medicare patients by sex, 2024
- Women37649%
- Men39951%
Chronic conditions among Dr. Callwood's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease60%
- Arthritis43%
- Diabetes41%
- Chronic kidney disease37%
- Atrial fibrillation35%
- Heart failure31%
Share of Medicare patients with each condition. A patient can have several.
Dr. Callwood'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
- Women53%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Dwayne Dennis Callwood wrote 10,468 Medicare Part D claims in 2024
In 2024, Dr. Callwood wrote 10,468 Medicare Part D claims for 1,310 patients. 84% of them were for generic drugs. CMS names the drug for 10,100 of them, across 74 drugs with 11 or more claims each, at $1,400,838 in total drug cost. In 2023, CMS named 6,032 claims across 67 drugs.
Dr. Callwood's Part D claims by kind of drug, 2024
- Generic8,760 claims84%
- Brand-name and other1,708 claims16%
Dr. Callwood'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.
Drug classes CMS tracks in Dr. Callwood's Part D claims, 2024
- Opioids0%13 of 10,468 claims
- Antibiotics0%39 of 10,468 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 6,0322024: 10,10067%
Drugs named by CMS: 74 in 2024, 67 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. Dwayne Dennis Callwood takes part in Medicare
Dr. Callwood 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)
Pacemaker insertion or repair: 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. Dwayne Dennis Callwood received $722 in industry payments from 2016 to 2025
CMS Open Payments shows 23 general payments to Dr. Callwood from 13 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 86% of the total. Medtronic Vascular, Inc. paid the most, $125.
General payments to Dr. Callwood by program year, 2016 to 2025
General payments to Dr. Callwood by kind, 2016 to 2025
- Food and beverage$62386%
- Education$9914%
Companies that paid Dr. Callwood 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. Dwayne Dennis Callwood graduated from University of Virginia School of Medicine
Dr. Callwood graduated from University of Virginia School of Medicine in 1989.
- Medical school
- Board certified in cardiovascular disease
Source: Dmand AI Professional Profile Data
Sources for Dr. Dwayne Dennis Callwood'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)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. Dwayne Dennis Callwood
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. Dwayne Dennis Callwood's NPI number?
Dr. Dwayne Dennis Callwood's NPI number is 1023194479. It was assigned on October 28, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Dwayne Dennis Callwood?
Dr. Dwayne Dennis Callwood is a cardiologist in Greenville, North Carolina. The primary specialty in the NPI Registry is Cardiovascular Disease Physician (taxonomy code 207RC0000X).
Where does Dr. Dwayne Dennis Callwood practice?
Dr. Callwood practices at 2100 Stantonsburg Rd, Greenville, NC 27834. Dr. Callwood's primary practice is ECU Health Medical Center in Greenville, North Carolina, part of University Health Systems of Eastern Carolina. Dmand AI also links Dr. Callwood to 3 hospitals, 5 medical groups and 2 group practices and clinics.
What is Dr. Dwayne Dennis Callwood's office phone number?
The practice phone on file for Dr. Callwood is (252) 847-4100.
What is Dr. Dwayne Dennis Callwood's medical license number?
Dr. Callwood holds North Carolina license 35857.
Which hospitals is Dr. Dwayne Dennis Callwood affiliated with?
Dr. Callwood practices at ECU Health Medical Center in Greenville, North Carolina. Dr. Callwood is also affiliated with Duke University Hospital. Dmand AI links Dr. Callwood to 3 more hospitals.
What medical group is Dr. Dwayne Dennis Callwood part of?
Dr. Callwood is linked to ECU Health. Dmand AI links Dr. Callwood to 5 more medical groups.
Does Dr. Dwayne Dennis Callwood accept Medicare?
Yes. CMS data shows Dr. Callwood billed Medicare for 3,080 services in 2024, and Dr. Callwood accepts Medicare assignment.
How many Medicare patients does Dr. Dwayne Dennis Callwood see?
CMS counts 775 Medicare patients who saw Dr. Callwood in 2024, with an average age of 77.
Is Dr. Dwayne Dennis Callwood board certified?
Yes. Dr. Callwood is board certified in cardiovascular disease by the American Board of Internal Medicine.
Show 5 more questionsShow fewer questions
What services does Dr. Dwayne Dennis Callwood bill to Medicare?
In 2024, Dr. Callwood's most billed Medicare services were office visit, established patient (99214), medicare service (G2211) and heart test or procedure (93000).
Where did Dr. Dwayne Dennis Callwood go to medical school?
Dr. Callwood graduated from University of Virginia School of Medicine in 1989.
What drugs does Dr. Dwayne Dennis Callwood prescribe most?
In 2024 Medicare Part D data, Dr. Callwood's most prescribed drugs by claims were Eliquis, Metoprolol Succinate and Losartan Potassium.
Has Dr. Dwayne Dennis Callwood received payments from drug or device companies?
CMS Open Payments shows $722 in general payments to Dr. Callwood from 13 companies from 2016 to 2025. The largest total came from Medtronic Vascular, Inc.
How long has Dr. Dwayne Dennis Callwood been practicing?
Dr. Callwood graduated from medical school in 1989, 37 years ago.
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