MR. RAJAT WALIA MD
NPI 1699710046
Internal Medicine - Pulmonary Disease in Phoenix, AZ

Q: What is Rajat Walia's NPI number?

The NPI number for Rajat Walia is 1699710046. It was assigned to this individual provider in the NPPES registry on June 19, 2006.

Q: What is Rajat Walia's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Pulmonary Disease, with taxonomy code 207RP1001X.

Q: When was this NPI record last updated?

The NPPES record for Rajat Walia was last updated on February 27, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since June 19, 2006PECOS EnrolledAccepts Medicare Assignment

500 W THOMAS RD STE 500, PHOENIX, AZ 85013(602) 406-4000(602) 406-6498 Get Directions Write a Review

NPPES record last updated: February 27, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

On this page

About Mr. Rajat Walia Md NPPES

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

MR. RAJAT WALIA MD (NPI 1699710046) is an individual pulmonary disease provider in Phoenix, Arizona, licensed in Arizona (31130) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1997).

NPPES Registry Identity

NPI1699710046

Entity TypeIndividualMale

Primary Taxonomy207RP1001X

Provider Legal NameMR. RAJAT WALIACredential: MD

Location Address500 W THOMAS RD STE 500Phoenix, AZ 85013-4220

Mailing Address500 W Thomas Rd Ste 500Phoenix, AZ 85013-4220 · (602) 406-4000 · Fax (602) 406-6498

Phone(602) 406-4000

Fax(602) 406-6498

Sole ProprietorNo

Medical School CMSOtherGraduated 1997

Enumeration DateJune 19, 2006

Last NPPES UpdateFebruary 27, 2026

NPPES CertifiedFebruary 27, 2026

✔ NPI 1699710046 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Pulmonary DiseaseAllopathic & Osteopathic Physicians

Taxonomy Code207RP1001X

License✔ Licensed in AZ · 31130

Definition

An internist who treats diseases of the lungs and airways. The pulmonologist diagnoses and treats cancer, pneumonia, pleurisy, asthma, occupational and environmental diseases, bronchitis, sleep disorders, emphysema and other complex disorders of the lungs.

Also ListedInternal Medicine · Critical Care MedicineTaxonomy 207RC0200X · License 31130 (AZ)

500 W THOMAS RD STE 500, Phoenix, AZ 85013

Open in Google Maps ↗

Other Identifiers 1

Medicaid089961AZ

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross Blue Shield of Arizona.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

Mr. Rajat Walia 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 ID2163408329

PECOS Enrollment IDI20061211000171

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 18

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 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.

1,547 services341 patients

Test to examine how well the lungs exchange gases 94729

This is a test called a pulmonary function test, which helps understand the efficiency of your lungs. It measures how much air your lungs can hold, how quickly you can move air in and out of your lungs, and how well your lungs put oxygen into and remove carbon dioxide from your blood.

398 services287 patients

Test to measure expiratory airflow and volume 94010

359 services247 patients

Test for exercise-induced lung stress 94618

An exercise-induced lung stress test assesses how your lungs respond to physical activity. During the test, you'll exercise on a treadmill or stationary bike while your heart rate, breathing, blood pressure, and oxygen levels are monitored. This helps identify any abnormal lung responses to exercise.

200 services171 patients

Test to determine lung volumes using sensors 94726

This test, called spirometry, measures lung capacity using sensors. You breathe into a mouthpiece attached to a device that records the amount and rate of air you inhale and exhale. It helps diagnose and monitor lung conditions.

101 services96 patients

Test to measure expiratory airflow and volume changes before and after medication administration 94060

This procedure measures how air flows in and out of your lungs. It's done before and after medication to see if the treatment improves your breathing. It's a simple, non-invasive test that involves breathing into a device called a spirometer.

81 services79 patients

Test to examine how well the lungs exchange gases 94729

75 services69 patients

Test for exercise-induced lung stress 94618

63 services58 patients

Critical care, first 30-74 minutes 99291

Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.

53 services17 patients

Test to determine lung volumes using gas dilution or washout 94727

This test measures lung volumes by either diluting or washing out a known amount of gas in your lungs. You'll breathe in a harmless gas, then exhale. The exhaled air is analyzed to assess your lung capacity and function.

36 services36 patients

Test to measure lung function at high altitude 94452

A test to measure lung function at high altitude assesses how well your lungs work in low oxygen conditions. This can include measuring how much air you can inhale and exhale, and how effectively oxygen is delivered to your body. It helps to identify any potential respiratory issues.

23 services22 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.

22 services22 patients

Test to determine lung volumes using sensors 94726

20 services20 patients

Irrigation and suction of lung airways to obtain cells using an endoscope 31624

This is a procedure where a thin, flexible tube called an endoscope is inserted through your mouth into the lungs. A small amount of saline is then introduced to wash the airways. The fluid, along with cells from the lung, is suctioned back for analysis.

17 services14 patients

Aspiration of initial secretion of lung airway using an endoscope 31645

This procedure involves using a thin, flexible tube called an endoscope to collect initial secretions from your lung airway. This helps doctors diagnose and treat respiratory conditions. It's a safe, minimally invasive procedure.

16 services13 patients

Biopsy of lobe of lung using an endoscope, each additional lobe 31632

A biopsy of the lung lobe using an endoscope is a procedure where a small sample of lung tissue is taken for testing. If more than one lobe needs to be examined, the process is repeated. An endoscope, a flexible tube with a light and camera, is used to view and access the lung tissue.

15 services11 patients

Biopsy of lobe of lung using an endoscope, 1 lobe 31628

A lung biopsy is a procedure where a small piece of lung tissue is taken for testing. An endoscope, a flexible tube with a light and camera, is used. It's inserted through the mouth or nose, down the windpipe, and into one lobe of the lung.

14 services11 patients

X-ray of chest, 2 views 71046

A chest X-ray, 2 views, is a quick, painless test that creates pictures of the structures inside your chest, such as your heart, lungs, and blood vessels. Two different angles are used to get a comprehensive view. This helps in diagnosing conditions like pneumonia, heart problems, or lung cancer.

14 services14 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 85013 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$127.71 typical visit price

range $55.44 – $168.60

Typical copayment $31.92 (range $13.86 – $42.15)

Most-billed visit code 99204

Established Patient

$98.00 typical visit price

range $17.72 – $137.41

Typical copayment $24.50 (range $4.43 – $34.35)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims 8

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

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431

DME-Oxygen and Supplies · category DC000N

4 suppliers24 claims24 services$19.32 avg. paid by Medicare

Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390

DME-Oxygen and Supplies · category DC002N

5 suppliers37 claims37 services$108.57 avg. paid by Medicare

Portable oxygen concentrator, rental E1392

DME-Oxygen and Supplies · category DC002N

1 supplier12 claims12 services$38.23 avg. paid by Medicare

Tacrolimus, immediate release, oral, 1 mg J7507

Treatment-Treatment - Miscellaneous · category RX029N

6 suppliers39 claims3,600 services$0.32 avg. paid by Medicare

Prednisone, immediate release or delayed release, oral, 1 mg J7512

Treatment-Treatment - Miscellaneous · category RX029N

5 suppliers58 claims12,000 services$0.01 avg. paid by Medicare

Mycophenolate mofetil, oral, 250 mg J7517

Treatment-Treatment - Miscellaneous · category RX029N

5 suppliers18 claims2,048 services$0.18 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.

DR. SWAMINATHAN PERINKULAM SATHYANARAYANAN MD

Internal Medicine (Pulmonary Disease)