Dr. Ruosu An, MD
- Medicare services, 2024
- 25
- Medicare patients, 2024
- 21
- Part D claims, 2022
- 161
- Industry payments
- $26,573
- Affiliated sites
- 1
- Practice address
- 2245 Gateway Access Pt, Raleigh, NC 27607
- Practice phone
- Call (919) 929-6777
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Carolina Vein Institute
Raleigh, North Carolina
Find Dr. An'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. Ruosu An is a vascular surgeon in Raleigh, North Carolina
Dr. An practices at Carolina Vein Institute in Raleigh, North Carolina.
Dr. An's NPI, 1447541545, was assigned on April 22, 2011. Dr. An graduated from UTMB Health in 2011. Dr. An holds Texas license Q8006.
- NPI
- 1447541545NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2769709070
- NPI enumeration date
- April 22, 2011
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (919) 929-6777
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 36
- Medical school graduation
- 2011
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Ruosu An practices at Carolina Vein Institute in Raleigh, North Carolina
Dr. An's primary practice is Carolina Vein Institute, at 2245 Gateway Access Pt, Raleigh, NC 27607 in Wake County. The practice phone is (919) 929-6777.
- Carolina Vein Institute2245 Gateway Access Pt, Raleigh, NC 27607 · Wake CountyPhone(919) 929-6777
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Ruosu An is affiliated with 2 sites of care and 1 medical group
Dr. An's primary practice is Carolina Vein Institute in Raleigh, North Carolina. The medical group on file is Carolina Vein Institute. Dmand AI also links Dr. An to 1 more group practice or clinic, 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. Ruosu An's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. An practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Carolina Vein Institute | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Ruosu An is one of 119 vascular surgeons in North Carolina
Vascular surgery is Dr. An's primary specialty in the NPI Registry, under taxonomy code 2086S0129X. Dr. An is board certified in vascular surgery by the American Board of Surgery. Dmand AI has Dr. An's licenses on file in 3 states: Texas, Arkansas and North Carolina.
Specialties and state licenses
- Vascular surgery, TexasPrimary
- Arkansas license
- North Carolina license
Clinical focus
Dmand AI lists varicose vein treatment among the conditions Dr. An treats.
Vascular surgeons near Dr. An
Counts of vascular surgeons 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. Ruosu An billed Medicare for 25 services in 2024
CMS data shows 25 Medicare services from Dr. An across 2 procedure codes in 2024, for 21 Medicare patients. Medicare paid $2,789 for them. Every service was in an office.
Dr. An's Medicare services by type, 2022 to 2024
- 2022
- 2024
- Tests and treatments
- 2022: 1552024: 1392%
- Office and hospital visits
- 2022: 3582024: 1297%
- Surgery
- 2022: 222024: 0100%
Dr. An compared with the North Carolina median for vascular surgeons, 2024
- Dr. An
- North Carolina median
- Medicare services
- 25vs 52095% below
- Medicare patients
- 21vs 33494% below
- Part D claims
- 161vs 10061% above
Medians across 116 vascular surgeons in North Carolina with Dmand AI profiles that report each measure.
Dr. An'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. An and other vascular surgeons in North Carolina.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Ruosu An treated 21 Medicare patients in 2024, average age 72
CMS counts 21 Medicare patients who saw Dr. An in 2024. 75% of them have high cholesterol, and 57% have arthritis. Their average risk score is 0.65, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. An's median patient age at 48, with 64% women.
Chronic conditions among Dr. An's Medicare patients, 2024
- High cholesterol75%
- Arthritis57%
- High blood pressure57%
Share of Medicare patients with each condition. A patient can have several.
Dr. An's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 48
Patient panel by sex, all payers
- Women64%
- Men28%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Ruosu An wrote 161 Medicare Part D claims in 2022
In 2022, Dr. An wrote 161 Medicare Part D claims. They cover 6 drugs, with $38,967 in total drug cost. In 2021, CMS named 173 claims across 6 drugs.
Dr. An's most prescribed drugs by claims, 2022
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, 2021 to 2022
- 2021
- 2022
- Claims for drugs CMS names
- 2021: 1732022: 1617%
Drugs named by CMS: 6 in 2022, 6 in 2021.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
Dr. Ruosu An ranks in the 81st percentile for varicose vein removal in Medicare
Dr. An accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 83 procedures of varicose vein removal by Dr. An, more than 81% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. An ranks in Medicare procedure volume
- Varicose vein removal
- 81st percentile83 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Ruosu An received $26,573 in industry payments from 2016 to 2025
CMS Open Payments shows 378 general payments to Dr. An from 36 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 46% of the total. AngioDynamics, Inc. paid the most, $12,033.
General payments to Dr. An by program year, 2016 to 2025
General payments to Dr. An by kind, 2016 to 2025
- Food and beverage$12,19046%
- Device or supply loans$12,00045%
- Travel and lodging$2,2078%
- Education$1761%
Companies that paid Dr. An 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. Ruosu An graduated from UTMB Health
Dr. An graduated from UTMB Health in 2011.
- Medical school
- Board certified in vascular surgery
Source: Dmand AI Professional Profile Data
Dr. Ruosu An accepts plans from 19 insurance carriers
Dr. An is in network with 19 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Elevance. PPO plans come from the most carriers, 12. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- Elevance
- United Healthcare
- Cigna
- HCSC
- Alliant Health Plans
- Blue Cross Blue Shield of Massachusetts
- +11 more carriersWith a free account
Plan types Dr. An accepts, by number of carriers
- PPO12
- HMO10
- Medicare9
- POS4
- EPO3
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Ruosu An'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) |
| 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 |
| Insurance carriers and plan types | Dmand AI Insurance Network 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. Ruosu An
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. Ruosu An's NPI number?
Dr. Ruosu An's NPI number is 1447541545. It was assigned on April 22, 2011, and it is active in the NPI Registry.
What kind of doctor is Dr. Ruosu An?
Dr. Ruosu An is a vascular surgeon in Raleigh, North Carolina. The primary specialty in the NPI Registry is Vascular Surgery Physician (taxonomy code 2086S0129X).
Where does Dr. Ruosu An practice?
Dr. An practices at 2245 Gateway Access Pt, Raleigh, NC 27607. Dr. An's primary practice is Carolina Vein Institute in Raleigh, North Carolina. Dmand AI also links Dr. An to 1 group practice or clinic.
What is Dr. Ruosu An's office phone number?
The practice phone on file for Dr. An is (919) 929-6777.
What is Dr. Ruosu An's medical license number?
Dr. An holds Texas license Q8006, one of the licenses on file in 3 states.
Which states has Dr. Ruosu An been licensed in?
Dmand AI has state licenses on file for Dr. An in Texas (2016 to 2026), Arkansas and North Carolina (2023 to 2025).
What medical group is Dr. Ruosu An part of?
Dr. An is linked to Carolina Vein Institute.
Does Dr. Ruosu An accept Medicare?
Yes. CMS data shows Dr. An billed Medicare for 25 services in 2024, and Dr. An accepts Medicare assignment.
How many Medicare patients does Dr. Ruosu An see?
CMS counts 21 Medicare patients who saw Dr. An in 2024, with an average age of 72.
Is Dr. Ruosu An board certified?
Yes. Dr. An is board certified in vascular surgery by the American Board of Surgery.
Show 6 more questionsShow fewer questions
What services does Dr. Ruosu An bill to Medicare?
In 2024, Dr. An's most billed Medicare services were blood vessel study (93970) and office visit, new patient (99203).
Where did Dr. Ruosu An go to medical school?
Dr. An graduated from UTMB Health in 2011.
What drugs does Dr. Ruosu An prescribe most?
In 2022 Medicare Part D data, Dr. An's most prescribed drugs by claims were Hydrocodone-Acetaminophen, Eliquis and Alprazolam.
Has Dr. Ruosu An received payments from drug or device companies?
CMS Open Payments shows $26,573 in general payments to Dr. An from 36 companies from 2016 to 2025. The largest total came from AngioDynamics, Inc.
How long has Dr. Ruosu An been practicing?
Dr. An graduated from medical school in 2011, 15 years ago.
What insurance does Dr. Ruosu An accept?
Dr. An is in network with 19 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Elevance. PPO plans come from the most carriers, 12. Check the plan with the practice before a visit.
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