Dr. Vyjanthanath Rohan Gunasingham, MD
- Medicare services, 2023
- 19
- Part D claims, 2024
- 29
- Industry payments
- $96
- Affiliated sites
- 1
- State license
- 1
- Practice address
- 725 Orchard Park Rd, West Seneca, NY 14224-3352
- Practice phone
- Call (716) 748-6002
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Vyjanthanath Rohan Gunasingham, M.D.
Physician office · West Seneca, New York
Find Dr. Gunasingham's professional email, personal email and mobile number
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Dr. Vyjanthanath Rohan Gunasingham is an internist in Buffalo, New York
Dr. Gunasingham practices at Vyjanthanath Rohan Gunasingham, M.D. in West Seneca, New York.
Dr. Gunasingham's NPI, 1912900432, was assigned on May 30, 2005. Dr. Gunasingham graduated from Christian Medical College Vellore in 1983. Dr. Gunasingham holds New York license 249369.
- NPI
- 1912900432NPI Registry (opens in a new tab)
- NPI enumeration date
- May 30, 2005
- NPI status
- Active
- Practice phone
- (716) 748-6002
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 70
- Medical school graduation
- 1983
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Vyjanthanath Rohan Gunasingham practices at Vyjanthanath Rohan Gunasingham, M.D. in West Seneca, New York
Dr. Gunasingham's primary practice is Vyjanthanath Rohan Gunasingham, M.D., at 725 Orchard Park Rd, West Seneca, NY 14224-3352. The practice phone is (716) 748-6002.
- Vyjanthanath Rohan Gunasingham, M.D.725 Orchard Park Rd, West Seneca, NY 14224-3352Phone(716) 748-6002
Source: Dmand AI Affiliation Data
Dr. Vyjanthanath Rohan Gunasingham is affiliated with 1 site of care
Dr. Gunasingham's primary practice is Vyjanthanath Rohan Gunasingham, M.D. in West Seneca, New York.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Vyjanthanath Rohan Gunasingham's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Gunasingham practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Vyjanthanath Rohan Gunasingham, M.D. | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Vyjanthanath Rohan Gunasingham is one of 9,643 internists in New York
Internal medicine is Dr. Gunasingham's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Gunasingham is licensed in New York.
Specialties and state licenses
- Internal medicine, New YorkPrimary
Internists near Dr. Gunasingham
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. Vyjanthanath Rohan Gunasingham billed Medicare for 19 services in 2023
CMS data shows 19 Medicare services from Dr. Gunasingham across 1 procedure code in 2023, all of them office visits. Medicare paid $1,545 for them. Every service was in an office.
Dr. Gunasingham's Medicare services by type, 2022 to 2023
- 2022
- 2023
- Office and hospital visits
- 2022: 512023: 1963%
Dr. Gunasingham compared with the New York median for internists, 2023
- Dr. Gunasingham
- New York median
- Medicare services
- 19vs 42696% below
- Part D claims
- 1,412vs 6222.3 times
Medians across 9,428 internists in New York with Dmand AI profiles that report each measure.
Dr. Gunasingham'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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Gunasingham and other internists in New York.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Vyjanthanath Rohan Gunasingham's patients have a median age of 69
Across all payers, Dmand AI patient panel data puts Dr. Gunasingham's median patient age at 69, with 43% women.
Dr. Gunasingham's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women43%
- Men57%
Source: Dmand AI Patient Panel Data
Dr. Vyjanthanath Rohan Gunasingham wrote 29 Medicare Part D claims in 2024
In 2024, Dr. Gunasingham wrote 29 Medicare Part D claims for 20 patients. 97% of them were for generic drugs. They cover 38 drugs, with $76,660 in total drug cost. In 2022, CMS named 2,283 claims across 54 drugs.
Dr. Gunasingham's Part D claims by kind of drug, 2024
- Generic28 claims97%
- Brand-name and other1 claims3%
Dr. Gunasingham'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.
Part D claims for drugs CMS names, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 2,2832023: 1,41238%
Drugs named by CMS: 38 in 2023, 54 in 2022.
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. Vyjanthanath Rohan Gunasingham received $96 in industry payments from 2016 to 2021
CMS Open Payments shows 7 general payments to Dr. Gunasingham from 5 drug and device companies from 2016 to 2021. Food and beverage make up the largest share, 89% of the total. Janssen Pharmaceuticals, Inc paid the most, $34.
General payments to Dr. Gunasingham by program year, 2016 to 2021
General payments to Dr. Gunasingham by kind, 2016 to 2021
- Food and beverage$8689%
- Education$1011%
Companies that paid Dr. Gunasingham the most, 2016 to 2021
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Vyjanthanath Rohan Gunasingham graduated from Christian Medical College Vellore
Dr. Gunasingham graduated from Christian Medical College Vellore in 1983.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Vyjanthanath Rohan Gunasingham'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) |
| 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. Vyjanthanath Rohan Gunasingham
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What is Dr. Vyjanthanath Rohan Gunasingham's NPI number?
Dr. Vyjanthanath Rohan Gunasingham's NPI number is 1912900432. It was assigned on May 30, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Vyjanthanath Rohan Gunasingham?
Dr. Vyjanthanath Rohan Gunasingham is an internist in Buffalo, New York. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Vyjanthanath Rohan Gunasingham practice?
Dr. Gunasingham practices at 725 Orchard Park Rd, West Seneca, NY 14224-3352. Dr. Gunasingham's primary practice is Vyjanthanath Rohan Gunasingham, M.D. in West Seneca, New York.
What is Dr. Vyjanthanath Rohan Gunasingham's office phone number?
The practice phone on file for Dr. Gunasingham is (716) 748-6002.
What is Dr. Vyjanthanath Rohan Gunasingham's medical license number?
Dr. Gunasingham holds New York license 249369.
Does Dr. Vyjanthanath Rohan Gunasingham accept Medicare?
Yes. CMS data shows Dr. Gunasingham billed Medicare for 19 services in 2023.
What services does Dr. Vyjanthanath Rohan Gunasingham bill to Medicare?
In 2023, Dr. Gunasingham's most billed Medicare services were office visit, established patient (99214).
Where did Dr. Vyjanthanath Rohan Gunasingham go to medical school?
Dr. Gunasingham graduated from Christian Medical College Vellore in 1983.
What drugs does Dr. Vyjanthanath Rohan Gunasingham prescribe most?
In 2023 Medicare Part D data, Dr. Gunasingham's most prescribed drugs by claims were Rosuvastatin Calcium, Metformin HCl and Amlodipine Besylate.
Has Dr. Vyjanthanath Rohan Gunasingham received payments from drug or device companies?
CMS Open Payments shows $96 in general payments to Dr. Gunasingham from 5 companies from 2016 to 2021. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. Vyjanthanath Rohan Gunasingham been practicing?
Dr. Gunasingham graduated from medical school in 1983, 43 years ago.
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