DR. RAVI VISWANATHAN (MD) – Allergy Physician, NPI 1326084534
Allergy Physician
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Profile Insights
NPPES metrics only — not quality of care.
96 ALLERGY/IMMUNOLOGY in WI
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Provider Addresses for DR. RAVI VISWANATHAN (MD)
7974, UW Health Court, Discovery Springs, City of Middleton, Dane County, Wisconsin, 53562, United States
MIDDLETON, WI 535625531
Phone: (608) 829-5485
Type: Mailing
451, Junction Road, Middleton Junction, Madison, Dane County, Wisconsin, 53719, United States
MADISON, WI 537172656
Phone: (608) 263-6180
Fax: (608) 890-6276
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 3 Open Payments records for all available years, with a total value of $3,817.
Total Amount is formed as General ($3,817) + Research ($0) + Ownership ($0) = $3,817.
Last reported payment date: 2024-11-22 • Largest payer in this snapshot: Regeneron Pharmaceuticals, Inc. ($3,798).
Total Amount
$3,817
General + Research + Ownership
Payments
3
Total payment records
General Amount
$3,817
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-11-22
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Regeneron Pharmaceuticals, Inc. | $3,798 |
| LANTHEUS MEDICAL IMAGING, INC. | $19 |
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2012-06-14
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20120614000064 | I | Allergy/Immunology | WI | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 95004 | Test for allergy using allergenic extract | 373 | 15 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 249 | 186 | $0 |
| 94010 | Test to measure expiratory airflow and volume | 212 | 159 | $0 |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | 39 | 33 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 26 | 26 | $0 |
Insurance plans in this area (ZIP 53562)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| ALLERGY/IMMUNOLOGY | WI | 95004 | Injection of allergenic extracts into skin, accessed through the skin | 790 | 38 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| - | WI | |
| - | WI | |
| Nurse Practitioner | WI | |
| Nurse Practitioner | WI | |
| Family Practice | WI | |
| - | WI | |
| - | WI | |
| - | WI | |
| Endocrinology, Internal Medicine | WI | |
| Medical Oncology, Hematology/Oncology | CA |
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