Ravi Viswanathan, MD
Allergy Physician · Madison, WI
Ravi Viswanathan, MD is an allergy physician with a practice address in Madison, Wisconsin, and NPI 1326084534, issued on Jun 22, 2006. Check the license (Wisconsin 52208, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Ravi Viswanathan
- Credential
- MD
- Primary taxonomy
- Allergy Physician 207KA0200X
- License number
- 52208 WI
Self-reported in NPPES; status is on the state search - Practice location
- 451 Junction RD, Madison, WI 53717
- Phone
- (608) 263-6180
- Enumerated
- Jun 22, 2006
- Record last updated
- Oct 26, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (608) 890-6276
- Medicare enrollment
- Enrolled (PECOS I20120614000064); accepts Medicare assignment
- Medical or professional school
- Rush Medical College Of Rush University, 2006
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest allergy physician records → All 18 in Wisconsin → Look up another NPI →
Also registered at 451 Junction RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Natalie Albino, AGNPNurse Practitioner1568238095
- Nicole Amass, NPNurse Practitioner1992769509
- Christopher Anderson, MDInternal Medicine Physician1245869973
- India Anderson-CarterObstetrics & Gynecology Physician1750910667
- Jon Arnason, MDRheumatology Physician1265760433
- William Aughenbaugh, MDDermatology Physician1033178272
Verify Ravi Viswanathan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 52208Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.8 times the Medicare Part D claims of the average allergy physician in 2024
2,082 Medicare Part D claims for 260 beneficiaries, against an average of 750 among the 645 providers of this specialty who prescribed in Part D. Brand-name drugs were 58% of claims.
Most prescribed
- Montelukast Sodium247 claims
- Fluticasone Propionate154 claims
- Dulera139 claims
- Fluticasone Propionate Hfa108 claims
- Albuterol Sulfate Hfa105 claims
- Advair Hfa103 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.
Industry payments in 2024: $3,817.01
3 payments; by number, the most common kind was consulting fee; the largest payer was Regeneron Pharmaceuticals, Inc. The 502 providers of this specialty with any payment received $9,080.33 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- University OF Wisconsin Medical Foundation IncMadison, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ravi Viswanathan among 18 allergy physician records in Wisconsin
Ravi Viswanathan, MD is one of 18 allergy physician records with a practice address in Wisconsin. 67% 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 6% of them.
- NPI issued2006 · 6% of these records are older, 33% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated2006 · median 2006 among the 11 with a school on file
- Record last updated2021 · 72% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207KA0200X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Allergy Physician providers in Wisconsin
There are 18 allergy physician records in Wisconsin.
All 18 in Wisconsin → Every provider in Madison → Allergy Physician nationwide →
The 8 allergy physician records with the nearest ZIP codes
- Courtney GaberinoMadison, WI 537181689170979
- Ivana Surjancev, MDMadison, WI 537181801425814
- Mark BiagtanMadison, WI 537151376707307
- Helen Sanderson, MDMadison, WI 537151699274670
- Robert Bush, MDMadison, WI 537921881660801
- Mark Moss, MDMadison, WI 537921093781163
- Tad Johnson, MDJanesville, WI 535461659339919
- Gary Steven, M.D.Greenfield, WI 532281972530699
Common questions
What is Ravi Viswanathan, MD's NPI number?
Ravi Viswanathan, MD's National Provider Identifier (NPI) is 1326084534, issued on Jun 22, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ravi Viswanathan, MD located?
The NPPES record lists a practice address at 451 Junction RD, Madison, WI, 53717. Phone: (608) 263-6180. Providers update this record themselves, so call before visiting.
How can I verify Ravi Viswanathan, MD's license?
NPPES lists Wisconsin license number 52208, as entered by the provider. Search the Wisconsin Medical Examining Board at https://dsps.wi.gov/Pages/BoardsCouncils/MEB/Default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Ravi Viswanathan, MD prescribe under Medicare Part D?
In 2024, Ravi Viswanathan, MD had 2,082 Medicare Part D claims for 260 beneficiaries; the average among allergy physician prescribers was 750. Part D covers Medicare prescriptions only.
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.