DR. RAVI VISWANATHAN MD
NPI 1326084534
Allergy & Immunology - Allergy in Madison, WI

Active since June 22, 2006PECOS EnrolledAccepts Medicare Assignment
451 JUNCTION RD, MADISON, WI 53717(608) 263-6180(608) 890-6276 Get Directions Write a Review

NPPES record last updated: October 26, 2021. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Dr. Ravi Viswanathan Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. RAVI VISWANATHAN MD (NPI 1326084534) is an individual allergy provider in Madison, Wisconsin, licensed in Wisconsin (52208) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS, is affiliated with Unitypoint Health - Meriter, and is a graduate of Rush Medical College Of Rush University (2006).

NPPES Registry Identity

NPI1326084534
Entity TypeIndividualMale
Primary Taxonomy207KA0200X
Provider Legal NameDR. RAVI VISWANATHANCredential: MD
Location Address451 JUNCTION RDMadison, WI 53717-2656
Mailing Address7974 Uw Health CtMiddleton, WI 53562-5531 · (608) 829-5485
Fax(608) 890-6276
Sole ProprietorNo
Medical School CMSRush Medical College Of Rush UniversityGraduated 2006
Enumeration DateJune 22, 2006
Last NPPES UpdateOctober 26, 2021
NPPES CertifiedOctober 26, 2021
NPI 1326084534 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

Primary SpecialtyAllergy & Immunology · AllergyAllopathic & Osteopathic Physicians
Taxonomy Code207KA0200X
License Licensed in WI · 52208
Definition

A physician who specializes in the diagnosis, treatment, and management of allergies. Source: National Uniform Claim Committee

Also ListedInternal Medicine · Allergy & ImmunologyTaxonomy 207RA0201X · License 52208 (WI)
Also ListedPediatrics · Pediatric Allergy/ImmunologyTaxonomy 2080P0201X · License 52208 (WI)
451 JUNCTION RD, Madison, WI 53717

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Dr. Ravi Viswanathan Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID941356323
PECOS Enrollment IDI20120614000064
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 7

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Test for allergy using allergenic extract 95004
An allergy test with allergenic extract is a diagnostic method to identify substances causing allergic reactions. Small amounts of common allergens are introduced to your body, usually through skin pricks or blood tests. Your body's response helps determine your allergies.
314 services18 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
206 services180 patients
Test to measure expiratory airflow and volume 94010
This test, known as spirometry, assesses how well your lungs work. It measures how much air you can inhale, how much you can exhale and how quickly you can exhale. It's non-invasive and helps diagnose conditions like asthma or COPD.
165 services137 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
37 services37 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
27 services21 patients
Test for allergy using ingested items, initial 2 hours 95076
This is a test to identify food allergies. You'll consume specific foods under medical supervision. For the initial 2 hours, reactions like skin rashes, breathing issues, or digestive problems are monitored. It helps pinpoint what foods may be causing allergic reactions.
26 services21 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Unitypoint Health - Meriter

Acute Care Hospitals · Madison, WI
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number520089
Location202 S Park StMadison, WI 53715 · Dane County
Emergency services Birthing friendly

University Of Wi Hospitals & Clinics Authority

Acute Care Hospitals · Madison, WI
4/5 CMS rating
OwnershipGovernment - Hospital District or Authority
CMS Certification Number520098
Location600 Highland AvenueMadison, WI 53792 · Dane County
Emergency services

Referred Medical Equipment & Supplies CMS DME claims 7

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Infusion supplies for external drug infusion pump, per cassette or bag (list drugs separately) A4222
DME-Medical/Surgical Supplies · category DA000N
1 supplier25 claims25 services$36.19 avg. paid by Medicare
Nebulizer, with compressor E0570
DME-Other DME · category DE000N
2 suppliers26 claims26 services$5.69 avg. paid by Medicare
Ambulatory infusion pump, mechanical, reusable, for infusion 8 hours or greater E0779
DME-Other DME · category DE000N
1 supplier11 claims11 services$13.06 avg. paid by Medicare
Injection, immune globulin, (gamunex-c/gammaked), non-lyophilized (e.g., liquid), 500 mg J1561
Treatment-Injections and Infusions (nononcologic) · category RI008N
1 supplier26 claims872 services$34.94 avg. paid by Medicare
Injection, immune globulin, (gammagard liquid), non-lyophilized, (e.g., liquid), 500 mg J1569
Treatment-Injections and Infusions (nononcologic) · category RI008N
1 supplier17 claims580 services$35.25 avg. paid by Medicare
Injection, immune globulin/hyaluronidase, (hyqvia), 100 mg immuneglobulin J1575
Treatment-Injections and Infusions (nononcologic) · category RI008N
1 supplier25 claims9,550 services$12.31 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Nurse Practitioner
451 JUNCTION RD
MADISON, WI 53717
Internal Medicine (Endocrinology, Diabetes & Metabolism)
451 JUNCTION RD
MADISON, WI 53717
Internal Medicine (Rheumatology)
451 JUNCTION RD
MADISON, WI 53717
Internal Medicine (Endocrinology, Diabetes & Metabolism)
451 JUNCTION RD
MADISON, WI 53717
Internal Medicine (Endocrinology, Diabetes & Metabolism)
451 JUNCTION RD
MADISON, WI 53717
Internal Medicine (Endocrinology, Diabetes & Metabolism)
451 JUNCTION RD
MADISON, WI 53717
Internal Medicine (Endocrinology, Diabetes & Metabolism)
451 JUNCTION RD
MADISON, WI 53717
Physician Assistant (Medical)
451 JUNCTION RD
MADISON, WI 53717

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Ravi Viswanathan's NPI number?

The NPI number for Ravi Viswanathan is 1326084534. It was assigned to this individual provider in the NPPES registry on June 22, 2006.

Where is Ravi Viswanathan located?

Ravi Viswanathan practices at 451 Junction Rd, Madison, WI 53717. The listed phone number is (608) 263-6180.

What is Ravi Viswanathan's specialty?

The primary specialty registered for this NPI is Allergy & Immunology, specializing in Allergy, with taxonomy code 207KA0200X.

Is Ravi Viswanathan enrolled in Medicare?

Yes. Ravi Viswanathan is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Ravi Viswanathan accept?

Health plans from Anthem Blue Cross and Blue Shield, Aspirus Health Plan, Group Health Cooperative-SCW, HealthPartners and Quartz and 1 other insurer list Ravi Viswanathan as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Ravi Viswanathan affiliated with any hospitals?

According to CMS data, Ravi Viswanathan is affiliated with Unitypoint Health - Meriter and University Of Wi Hospitals & Clinics Authority.

When was this NPI record last updated?

The NPPES record for Ravi Viswanathan was last updated on October 26, 2021. NPI Profile syncs with the weekly NPPES data releases published by CMS.