Dr. Rosemary Iwunze, MD
- Medicare services, 2024
- 647
- Medicare patients, 2024
- 260
- Part D claims, 2024
- 977
- Hospital affiliations
- 2
- Industry payments
- $9,428
- Practice address
- 1001 Sam Perry Boulevard, Fredericksburg, VA 22401
- Practice phone
- Call (540) 741-1100
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Iwunze'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. Rosemary Iwunze is an internist in Fredericksburg, Virginia
Dr. Iwunze practices at Mary Washington Hospital in Fredericksburg, Virginia, part of Mary Washington Healthcare.
Dr. Iwunze's NPI, 1205950284, was assigned on March 16, 2007. Dr. Iwunze holds Virginia license 0101263347.
- NPI
- 1205950284NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9931296480
- NPI enumeration date
- March 16, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (540) 741-1100
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 48
- Medical school graduation
- 2004
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Rosemary Iwunze practices at Mary Washington Hospital in Fredericksburg, Virginia
Dr. Iwunze's primary practice is Mary Washington Hospital, at 1001 Sam Perry Boulevard, Fredericksburg, VA 22401 in Fredericksburg City. The practice phone is (540) 741-1100.
- Mary Washington Hospital1001 Sam Perry Boulevard, Fredericksburg, VA 22401 · Fredericksburg CityPhone(540) 741-1100
Source: Dmand AI Affiliation Data
Dr. Rosemary Iwunze is affiliated with 3 sites of care and 1 medical group
Dr. Iwunze's primary practice is Mary Washington Hospital in Fredericksburg, Virginia, part of Mary Washington Healthcare. Dr. Iwunze is also affiliated with Stafford Hospital. The medical group on file is Mary Washington Healthcare. Dmand AI also links Dr. Iwunze to 1 more group practice or clinic, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Rosemary Iwunze's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Iwunze practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mary Washington Hospital | Available with a free account |
| +2 more affiliated sites | 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 Mary Washington Healthcare and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Rosemary Iwunze is one of 3,339 internists in Virginia
Internal medicine is Dr. Iwunze's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dmand AI has Dr. Iwunze's licenses on file in 2 states: Virginia and Maryland.
Specialties and state licenses
- Internal medicine, VirginiaPrimary
- Maryland license
Internists near Dr. Iwunze
Counts of internists 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. Rosemary Iwunze billed Medicare for 647 services in 2024
CMS data shows 647 Medicare services from Dr. Iwunze across 9 procedure codes in 2024, for 260 Medicare patients. Medicare paid $40,827 for them.
Dr. Iwunze's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 8332024: 63124%
- Other services
- 2023: 312024: 1648%
Where Dr. Iwunze's Medicare services took place, 2024
- In an office589%
- In a facility58991%
Dr. Iwunze compared with the Virginia median for internists, 2024
- Dr. Iwunze
- Virginia median
- Medicare services
- 647vs 6077% above
- Medicare patients
- 260vs 2466% above
- Part D claims
- 695vs 2243.1 times
Medians across 3,182 internists in Virginia with Dmand AI profiles that report each measure.
Dr. Iwunze'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. Iwunze and other internists in Virginia.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Rosemary Iwunze treated 260 Medicare patients in 2024, average age 75
CMS counts 260 Medicare patients who saw Dr. Iwunze in 2024. The largest group is 65 to 74, with 99 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 17% are also on Medicaid. Their average risk score is 2.68, 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. Iwunze's median patient age at 68, with 40% women.
Dr. Iwunze's Medicare patients by age, 2024
Dr. Iwunze's Medicare patients by sex, 2024
- Women12548%
- Men13552%
Chronic conditions among Dr. Iwunze's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis63%
- Diabetes51%
- Chronic kidney disease50%
- Ischemic heart disease50%
- Atrial fibrillation46%
- Heart failure45%
Share of Medicare patients with each condition. A patient can have several.
Dr. Iwunze's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women40%
- Men59%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Rosemary Iwunze wrote 977 Medicare Part D claims in 2024
In 2024, Dr. Iwunze wrote 977 Medicare Part D claims for 127 patients. 78% of them were for generic drugs. CMS names the drug for 695 of them, across 28 drugs with 11 or more claims each, at $676,186 in total drug cost. In 2023, CMS named 627 claims across 24 drugs.
Dr. Iwunze's Part D claims by kind of drug, 2024
- Generic764 claims78%
- Brand-name213 claims22%
Dr. Iwunze'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. Iwunze's Part D claims, 2024
- Opioids2%18 of 977 claims
- Antibiotics46%447 of 977 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: 6272024: 69511%
Drugs named by CMS: 28 in 2024, 24 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. Rosemary Iwunze takes part in Medicare
Dr. Iwunze 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. Rosemary Iwunze received $9,428 in industry payments from 2016 to 2025
CMS Open Payments shows 452 general payments to Dr. Iwunze from 31 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 98% of the total. ViiV Healthcare Company paid the most, $1,953.
General payments to Dr. Iwunze by program year, 2016 to 2025
General payments to Dr. Iwunze by kind, 2016 to 2025
- Food and beverage$9,19398%
- Education$2212%
- Speaker and faculty fees$150%
Companies that paid Dr. Iwunze 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. Rosemary Iwunze'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) |
| 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. Rosemary Iwunze
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. Rosemary Iwunze's NPI number?
Dr. Rosemary Iwunze's NPI number is 1205950284. It was assigned on March 16, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Rosemary Iwunze?
Dr. Rosemary Iwunze is an internist in Fredericksburg, Virginia. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Rosemary Iwunze practice?
Dr. Iwunze practices at 1001 Sam Perry Boulevard, Fredericksburg, VA 22401. Dr. Iwunze's primary practice is Mary Washington Hospital in Fredericksburg, Virginia, part of Mary Washington Healthcare. Dmand AI also links Dr. Iwunze to 1 group practice or clinic.
What is Dr. Rosemary Iwunze's office phone number?
The practice phone on file for Dr. Iwunze is (540) 741-1100.
What is Dr. Rosemary Iwunze's medical license number?
Dr. Iwunze holds Virginia license 0101263347, one of the licenses on file in 2 states.
Which states has Dr. Rosemary Iwunze been licensed in?
Dmand AI has state licenses on file for Dr. Iwunze in Virginia and Maryland.
Which hospitals is Dr. Rosemary Iwunze affiliated with?
Dr. Iwunze practices at Mary Washington Hospital in Fredericksburg, Virginia. Dr. Iwunze is also affiliated with Stafford Hospital.
What medical group is Dr. Rosemary Iwunze part of?
Dr. Iwunze is linked to Mary Washington Healthcare.
Does Dr. Rosemary Iwunze accept Medicare?
Yes. CMS data shows Dr. Iwunze billed Medicare for 647 services in 2024, and Dr. Iwunze accepts Medicare assignment.
How many Medicare patients does Dr. Rosemary Iwunze see?
CMS counts 260 Medicare patients who saw Dr. Iwunze in 2024, with an average age of 75.
Show 4 more questionsShow fewer questions
What services does Dr. Rosemary Iwunze bill to Medicare?
In 2024, Dr. Iwunze's most billed Medicare services were hospital inpatient care (99231), hospital inpatient care (99232) and hospital inpatient care (99222).
What drugs does Dr. Rosemary Iwunze prescribe most?
In 2024 Medicare Part D data, Dr. Iwunze's most prescribed drugs by claims were Gentamicin Sulfate, Biktarvy and Cefepime HCl.
Has Dr. Rosemary Iwunze received payments from drug or device companies?
CMS Open Payments shows $9,428 in general payments to Dr. Iwunze from 31 companies from 2016 to 2025. The largest total came from ViiV Healthcare Company.
How long has Dr. Rosemary Iwunze been practicing?
Dr. Iwunze graduated from medical school in 2004, 22 years ago.
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