Ramaswamy Viswanathan, M.D.
Addiction Medicine (Psychiatry & Neurology) Physician · Brooklyn, NY
Ramaswamy Viswanathan, M.D. is an addiction medicine (psychiatry & neurology) physician with a practice address in Brooklyn, New York, and NPI 1215986831, issued on May 9, 2006. Check the license (New York 130329, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Ramaswamy Viswanathan
- Credential
- M.D.
- Primary taxonomy
- Addiction Medicine (Psychiatry & Neurology) Physician 2084A0401X
- License number
- 130329 NY
Self-reported in NPPES; status is on the state search - Practice location
- 450 Clarkson Ave, Brooklyn, NY 11203
- Phone
- (718) 270-2352
- Enumerated
- May 9, 2006
- Record last updated
- Mar 27, 2023
- Fax
- (718) 270-3355
- Medicaid ID
- 02365960 NY
- Medicare enrollment
- Enrolled (PECOS I20060103000629); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest addiction medicine (psychiatry & neurology) physician records → All 41 in New York → Look up another NPI →
Also registered at 450 Clarkson Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sana Abbas, DOStudent in an Organized Health Care Education/Training Program1629863212
- Rabab Abdalla, MDStudent in an Organized Health Care Education/Training Program1780325621
- Marie Abdallah, MDStudent in an Organized Health Care Education/Training Program1073743639
- Ahmed AbdelfattahStudent in an Organized Health Care Education/Training Program1508708959
- Haram AbdelmajidStudent in an Organized Health Care Education/Training Program1093348054
- Sara AbdelrahamanStudent in an Organized Health Care Education/Training Program1659143568
Verify Ramaswamy Viswanathan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 130329Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
89% fewer Medicare Part D claims than the average addiction medicine (psychiatry & neurology) physician in 2024
92 Medicare Part D claims for 14 beneficiaries, against an average of 870 among the 264 providers of this specialty who prescribed in Part D.
Most prescribed
- Mirtazapine21 claims
- Olanzapine19 claims
- Clonazepam15 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The MIPS final score for 2023 (Medicare payment program): 93.5 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- University Physicians OF Brooklyn, Inc.Brooklyn, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ramaswamy Viswanathan among 41 addiction medicine (psychiatry & neurology) physician records in New York
Ramaswamy Viswanathan, M.D. is one of 41 addiction medicine (psychiatry & neurology) physician records with a practice address in New York. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 12% of them.
- NPI issued2006 · 12% of these records are older, 56% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 39% of these records are
- Graduated1972 · median 2003 among the 16 with a school on file
- Record last updated2023 · 66% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084A0401X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Addiction Medicine (Psychiatry & Neurology) Physician providers in New York
There are 41 addiction medicine (psychiatry & neurology) physician records in New York.
All 41 in New York → Every provider in Brooklyn → Addiction Medicine (Psychiatry & Neurology) Physician nationwide →
The 8 addiction medicine (psychiatry & neurology) physician records with the nearest ZIP codes
- Zlatin IvanovBrooklyn, NY 112061982883963
- Lynda Smith Harris, MDBrooklyn, NY 112061831272947
- Matthew Warren, MDBrooklyn, NY 112061760624241
- Alejo Parellada, M.D.Brooklyn, NY 112381417070442
- Michael Eisenberg, MD, MPHGreat Neck, NY 110211881703452
- Sabina Fink, M.D.Glen Oaks, NY 110041013327220
- Roopali Parikh, M.D.Glen Oaks, NY 110041760849475
- Asjad Bashir, MDJamaica, NY 114181861957268
Common questions
What is Ramaswamy Viswanathan, M.D.'s NPI number?
Ramaswamy Viswanathan, M.D.'s National Provider Identifier (NPI) is 1215986831, issued on May 9, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ramaswamy Viswanathan, M.D. located?
The NPPES record lists a practice address at 450 Clarkson Ave, Brooklyn, NY, 11203. Phone: (718) 270-2352. Providers update this record themselves, so call before visiting.
How can I verify Ramaswamy Viswanathan, M.D.'s license?
NPPES lists New York license number 130329, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Ramaswamy Viswanathan, M.D. prescribe under Medicare Part D?
In 2024, Ramaswamy Viswanathan, M.D. had 92 Medicare Part D claims for 14 beneficiaries; the average among addiction medicine (psychiatry & neurology) physician prescribers was 870. Part D covers Medicare prescriptions only.
What is Ramaswamy Viswanathan, M.D.'s MIPS final score?
The 2023 MIPS final score is 93.5 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.