Doctor profile · Federal record
Dr. Ravi Viswanathan, MD
Allergy Physician (CMS: Allergy/Immunology) · Allergy & Immunology (Internal Medicine) Physician · Pediatric Allergy/Immunology Physician · Madison, WI
- NPI 1326084534
- Accepts Medicare
- 20 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
451 Junction RD
Madison, WI 537172656
(608) 263-6180
fax (608) 890-6276 - Mailing address
-
7974 Uw Health CT
Middleton, WI 535625531
Credentials & registration
- NPI registered
- June 2006 — 20 yrs on file
- Profile last updated
- October 26, 2021
- Year of graduation
- 2006 — 20 yrs since
- Specialty taxonomy
- 207KA0200X — NUCC code
- State license (1)
- Wisconsin #52208
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1326084534. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
953
Distinct HCPCS
8
Medicare allowed
$39,862
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
95004 |
Test for allergy using allergenic extract | 373 | 15 | $4 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 249 | 186 | $91 | |
94010 |
Test to measure expiratory airflow and volume | 212 | 159 | $8 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 39 | 33 | $135 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 26 | 26 | $124 | |
95076 |
Test for allergy using ingested items, initial 2 hours | 21 | 21 | $70 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 21 | 21 | $169 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 12 | 12 | $62 |
In context: peer comparison
Among 3 peers in Madison Allergy Physician, average services per provider: 595. This provider delivers 1.6× the peer median.Open Payments
Industry payments received
All-time total
$3,817
Transactions
3
Manufacturers
2
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Regeneron Pharmaceuticals, INC. | 2 | $3,798.00 | |
| Lantheus Medical Imaging, INC. | 1 | $19.01 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,392
Patients
378
Total drug cost
$658,368
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Montelukast Sodium | Generic | 256 | 75 | $4,373 |
| Flovent Hfa (Fluticasone Propionate) | Brand | 153 | 37 | $79,948 |
| Fluticasone Propionate | Generic | 152 | 52 | $3,887 |
| Dulera (Mometasone/Formoterol) | Brand | 131 | 30 | $52,635 |
| Advair Hfa (Fluticasone Propion/Salmeterol) | Brand | 127 | 27 | $93,338 |
| Albuterol Sulfate Hfa (Albuterol Sulfate) | Brand | 96 | 55 | $4,971 |
| Advair Diskus (Fluticasone Propion/Salmeterol) | Brand | 64 | 14 | $43,338 |
| Symbicort (Budesonide/Formoterol Fumarate) | Brand | 59 | 19 | $38,641 |
| Ventolin Hfa (Albuterol Sulfate) | Brand | 55 | 29 | $4,104 |
| Sodium Chloride (0.9 % Sodium Chloride) | Brand | 52 | 0 | $1,366 |
Hospital affiliations
Frequently asked questions
What is Dr. Ravi Viswanathan's medical specialty?
Dr. Ravi Viswanathan practices Allergy Physician in Madison, WI.
Where does Dr. Ravi Viswanathan practice?
Dr. Ravi Viswanathan practices at 451 Junction RD, Madison, WI 537172656. Office phone: 6082636180.
What is Dr. Ravi Viswanathan's NPI?
Dr. Ravi Viswanathan's National Provider Identifier (NPI) is 1326084534, issued by NPPES.
Does Dr. Ravi Viswanathan accept Medicare assignment?
Yes. Dr. Ravi Viswanathan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Ravi Viswanathan commonly perform?
Top Medicare-reported procedures in 2023: Test for allergy using allergenic extract (HCPCS 95004); Established patient office or other outpatient visit (HCPCS 99214); Test to measure expiratory airflow and volume (HCPCS 94010). Source: CMS Medicare Physician & Other Practitioners file.