Semin Neurol
Brain InjuriesCritical IllnessElectroencephalography
Dr. Vyas Tenkasi Viswanathan, MD
NPI1093178691PAC ID2466749452
- Medicare services, 2024
- 297
- Medicare patients, 2024
- 174
- Part D claims, 2023
- 80
- Publications
- 7
- Hospital affiliations
- 2
- Practice address
- 4420 Lake Boone Trail, Raleigh, NC 27607
- Practice phone
- Call (919) 784-3100
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Viswanathan's professional email, personal email and mobile number
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Dr. Vyas Tenkasi Viswanathan is a neurologist in Raleigh, North Carolina
Dr. Viswanathan practices at UNC Health Rex in Raleigh, North Carolina, part of University of North Carolina Health Care System.
Dr. Viswanathan's NPI, 1093178691, was assigned on March 31, 2016. Dr. Viswanathan graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) in 2016. Dr. Viswanathan holds North Carolina license 2020-02676.
NPI and contact details
- NPI
- 1093178691NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2466749452
- NPI enumeration date
- March 31, 2016
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (919) 784-3100
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 36
- Medical school graduation
- 2016
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Vyas Tenkasi Viswanathan practices at UNC Health Rex in Raleigh, North Carolina
Dr. Viswanathan's primary practice is UNC Health Rex, at 4420 Lake Boone Trail, Raleigh, NC 27607 in Wake County. The practice phone is (919) 784-3100.
- UNC Health Rex4420 Lake Boone Trail, Raleigh, NC 27607 · Wake CountyPhone(919) 784-3100
Source: Dmand AI Affiliation Data
Dr. Vyas Tenkasi Viswanathan is affiliated with 3 sites of care and 3 medical groups
Dr. Viswanathan's primary practice is UNC Health Rex in Raleigh, North Carolina, part of University of North Carolina Health Care System. Dr. Viswanathan is also affiliated with CarolinaEast Medical Center. The medical group on file is Access TeleCare. Dmand AI also links Dr. Viswanathan to 2 more medical groups and 1 clinical lab, each named with a free account.
CarolinaEast Medical CenterAccess TeleCare2 medical groupsNames with a free account1 clinical labName with a free account
See all 6 affiliations for Dr. ViswanathanSources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Vyas Tenkasi Viswanathan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Viswanathan practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| UNC Health Rex | Available with a free account |
| +2 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Vyas Tenkasi Viswanathan is one of 543 neurologists in North Carolina
Neurology is Dr. Viswanathan's primary specialty in the NPI Registry, under taxonomy code 2084N0400X. Dr. Viswanathan is licensed in North Carolina.
Specialties and state licenses
- Neurology, North CarolinaPrimary
Neurologists near Dr. Viswanathan
Counts of neurologists 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. Vyas Tenkasi Viswanathan billed Medicare for 297 services in 2024
CMS data shows 297 Medicare services from Dr. Viswanathan across 8 procedure codes in 2024, for 174 Medicare patients. Medicare paid $37,925 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 2024297
Medicare patients174
Paid by Medicare$37,925
Procedure codes8
Dr. Viswanathan's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 612024: 205236%
- Tests and treatments
- 2023: 252024: 92268%
Dr. Viswanathan compared with the North Carolina median for neurologists, 2024
- Dr. Viswanathan
- North Carolina median
- Medicare services
- 297vs 35015% below
- Medicare patients
- 174vs 1866% below
- Part D claims
- 80vs 55085% below
Medians across 528 neurologists in North Carolina with Dmand AI profiles that report each measure.
Dr. Viswanathan'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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Vyas Tenkasi Viswanathan treated 174 Medicare patients in 2024, average age 77
CMS counts 174 Medicare patients who saw Dr. Viswanathan in 2024. The largest group is 75 to 84, with 73 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 16% are also on Medicaid. Their average risk score is 2.34, 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. Viswanathan's median patient age at 77, with 52% women.
Medicare patients, 2024174
Average age77
Average risk score2.34
Also on Medicaid16%
Dr. Viswanathan's Medicare patients by age, 2024
Dr. Viswanathan's Medicare patients by sex, 2024
- Women8549%
- Men8951%
Chronic conditions among Dr. Viswanathan's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Stroke or TIA63%
- Arthritis61%
- Chronic kidney disease53%
- Diabetes53%
- Ischemic heart disease53%
- Heart failure49%
Share of Medicare patients with each condition. A patient can have several.
Dr. Viswanathan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 77
Patient panel by sex, all payers
- Women52%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Vyas Tenkasi Viswanathan wrote 80 Medicare Part D claims in 2023
In 2023, Dr. Viswanathan wrote 80 Medicare Part D claims. They cover 5 drugs, with $20,174 in total drug cost.
Part D claims, 202380
Drugs named by CMS5
Total drug cost$20,174
Dr. Viswanathan's most prescribed drugs by claims, 2023
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
Dr. Vyas Tenkasi Viswanathan offers telehealth to Medicare patients
Dr. Viswanathan accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Viswanathan as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Vyas Tenkasi Viswanathan has 7 publications on record
Dmand AI links 7 papers to Dr. Viswanathan, published from 2014 to 2023. 2020 was the busiest year, with 3. The most frequent topics are Brain Injuries. Dr. Viswanathan's most frequent co-authors are Aaron Manning Carlson, MD, Tirisham Victoria Gyang, MD and Carolina Barbosa Maciel, MD.
Papers7
Years published2014 to 2023
Dr. Viswanathan's papers by year, 2014 to 2023
Topics Dr. Viswanathan writes about most
- Brain Injuries
Dr. Viswanathan's most frequent co-authors
- Aaron Manning Carlson, MD2 shared papers
- Tirisham Victoria Gyang, MD2 shared papers
- Carolina Barbosa Maciel, MD2 shared papers
Recent publications by Dr. Viswanathan
Neurochirurgie
AnalgesicsAnalgesics, OpioidHeadache
Mult Scler Relat Disord
Aquaporin 4AutoantibodiesImmunoglobulin G
J Neuroimmunol
Adrenal Cortex HormonesBrainCerebral Amyloid Angiopathy
See who Dr. Viswanathan researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Viswanathan works with, so you can find a warm path to the right neurologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Vyas Tenkasi Viswanathan received $87 in industry payments from 2024 to 2025
CMS Open Payments shows 3 general payments to Dr. Viswanathan from 2 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 100% of the total. UCB, Inc. paid the most, $60.
General payments to Dr. Viswanathan by program year, 2024 to 2025
Companies that paid Dr. Viswanathan the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Vyas Tenkasi Viswanathan graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb)
Dr. Viswanathan graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) in 2016.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Vyas Tenkasi Viswanathan'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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (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 |
| 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. Vyas Tenkasi Viswanathan
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. Vyas Tenkasi Viswanathan's NPI number?
Dr. Vyas Tenkasi Viswanathan's NPI number is 1093178691. It was assigned on March 31, 2016, and it is active in the NPI Registry.
What kind of doctor is Dr. Vyas Tenkasi Viswanathan?
Dr. Vyas Tenkasi Viswanathan is a neurologist in Raleigh, North Carolina. The primary specialty in the NPI Registry is Neurology Physician (taxonomy code 2084N0400X).
Where does Dr. Vyas Tenkasi Viswanathan practice?
Dr. Viswanathan practices at 4420 Lake Boone Trail, Raleigh, NC 27607. Dr. Viswanathan's primary practice is UNC Health Rex in Raleigh, North Carolina, part of University of North Carolina Health Care System. Dmand AI also links Dr. Viswanathan to 2 medical groups and 1 clinical lab.
What is Dr. Vyas Tenkasi Viswanathan's office phone number?
The practice phone on file for Dr. Viswanathan is (919) 784-3100.
What is Dr. Vyas Tenkasi Viswanathan's medical license number?
Dr. Viswanathan holds North Carolina license 2020-02676.
Which hospitals is Dr. Vyas Tenkasi Viswanathan affiliated with?
Dr. Viswanathan practices at UNC Health Rex in Raleigh, North Carolina. Dr. Viswanathan is also affiliated with CarolinaEast Medical Center.
What medical group is Dr. Vyas Tenkasi Viswanathan part of?
Dr. Viswanathan is linked to Access TeleCare. Dmand AI links Dr. Viswanathan to 2 more medical groups.
Does Dr. Vyas Tenkasi Viswanathan accept Medicare?
Yes. CMS data shows Dr. Viswanathan billed Medicare for 297 services in 2024, and Dr. Viswanathan accepts Medicare assignment.
Does Dr. Vyas Tenkasi Viswanathan offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Viswanathan as offering telehealth services.
How many Medicare patients does Dr. Vyas Tenkasi Viswanathan see?
CMS counts 174 Medicare patients who saw Dr. Viswanathan in 2024, with an average age of 77.
Show 7 more questionsShow fewer questions
What services does Dr. Vyas Tenkasi Viswanathan bill to Medicare?
In 2024, Dr. Viswanathan's most billed Medicare services were critical care (99291), nerve and brain test (95720) and hospital inpatient care (99233).
Where did Dr. Vyas Tenkasi Viswanathan go to medical school?
Dr. Viswanathan graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) in 2016.
What drugs does Dr. Vyas Tenkasi Viswanathan prescribe most?
In 2023 Medicare Part D data, Dr. Viswanathan's most prescribed drugs by claims were Zonisamide, Lamotrigine and Lacosamide.
Has Dr. Vyas Tenkasi Viswanathan received payments from drug or device companies?
CMS Open Payments shows $87 in general payments to Dr. Viswanathan from 2 companies from 2024 to 2025. The largest total came from UCB, Inc.
How long has Dr. Vyas Tenkasi Viswanathan been practicing?
Dr. Viswanathan graduated from medical school in 2016, 10 years ago.
Does Dr. Vyas Tenkasi Viswanathan do research?
Dmand AI links 7 publications to Dr. Viswanathan, published from 2014 to 2023.
Who does Dr. Vyas Tenkasi Viswanathan publish with?
Dr. Viswanathan's most frequent co-authors are Aaron Manning Carlson, MD (2 shared papers), Tirisham Victoria Gyang, MD (2 shared papers) and Carolina Barbosa Maciel, MD (2 shared papers).
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