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Edit this profileAt a glance
- 451 Junction Rd, Madison, WI 53717
About Dr. Viswanathan
Ravi Viswanathan, MD practices allergy in Madison, WI. Ravi is a 2006 graduate of Rush Medical College of Rush University. Ravi is also listed as specializing in internal medicine and pediatric allergy & immunology. According to Medicare claims data, Ravi cared for 428 Medicare patients across 789 services. The services billed most often include test for allergy using allergenic extract, established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, and test to measure expiratory airflow and volume. The provider's National Provider Identifier (NPI) is 1326084534.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (608) 263-6180
- Email not available
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Practice Locations
451 JUNCTION RD
Madison, WI 53717
Procedures Most Often Billed to Medicare
789 services · 428 patients · 7 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Test for allergy using allergenic extract | Treatment | 95004 |
314 | Less often than most peers in Allergy |
| Test to measure expiratory airflow and volume | Treatment | 94010 |
165 | More often than most peers in Allergy |
| Test for allergy using ingested items, initial 2 hours | Treatment | 95076 |
26 | More often than most peers in Allergy |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
206 | More often than most peers in Allergy |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
37 | As often as other peers in Allergy |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
27 | As often as other peers in Allergy |
| New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more | Office visit | 99205 |
14 | Less often than most peers in Allergy |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other allergy specialists in Madison 6
Same specialty, same city.
Trained at Rush Medical College of Rush University 2
Other providers in the same specialty who trained at the same institution.
More connections — 10 related providers in 2 groups
Class of 2006 at Rush Medical College of Rush University 8
Providers who graduated from the same medical school in the same year.
Also performs Test for allergy using allergenic extract 2
Providers in WI who bill this service to Medicare most often.
Common questions
What is Dr. Viswanathan's specialty?
Dr. Viswanathan is an allergy in Madison, WI. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where can I find Dr. Viswanathan?
Dr. Viswanathan is listed at 451 Junction Rd, Madison, WI 53717. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Viswanathan?
The number on file is (608) 263-6180. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Viswanathan's NPI number?
Dr. Viswanathan's National Provider Identifier is 1326084534. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
What is Dr. Viswanathan's medical education?
Dr. Viswanathan attended Rush Medical College of Rush University, graduating in 2006. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Viswanathan been practicing?
Dr. Viswanathan has 20 years experience. Calculated from a graduation year of 2006, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Viswanathan known for?
According to Medicare billing data, Dr. Viswanathan provides treatments such as test for allergy using allergenic extract and test to measure expiratory airflow and volume, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Viswanathan confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Viswanathan. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.