MR. RAJAT WALIA MD
NPI 1699710046
Internal Medicine - Pulmonary Disease in Phoenix, AZ
NPI Status: Active since June 19, 2006
Contact Information
500 W THOMAS RD STE 500
PHOENIX, AZ
ZIP 85013
Phone: (602) 406-4000
Fax: (602) 406-6498
- Individual
- Male
- Years of Experience 29
- Internal Medicine
- Pulmonary Disease
- Accepts Insurance
- Accepts Medicare Approved Payment
- PECOS Enrolled
About RAJAT WALIA
This page provides the complete NPI Profile along with additional information for Rajat Walia, an internist established in Phoenix, Arizona with a medical specialization in Internal Medicine, focusing in pulmonary disease and more than 29 years of experience. The healthcare provider is registered in the NPI registry with number 1699710046 assigned on June 2006. The practitioner's primary taxonomy code is 207RP1001X with license number 31130 (AZ). The provider is registered as an individual and his NPI record was last updated February 2026.
- NPI
- 1699710046
- Provider Name
- MR. RAJAT WALIA MD
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 500 W THOMAS RD STE 500 PHOENIX, AZ 85013
- Location Phone
- (602) 406-4000
- Location Fax
- (602) 406-6498
- Mailing Address
- 500 W THOMAS RD STE 500 PHOENIX, AZ 85013
- Mailing Phone
- (602) 406-4000
- Mailing Fax
- (602) 406-6498
- Medical School Name
- OTHER
- Graduation Year
- 1997
- Is Sole Proprietor?
- No
- Enumeration Date
- 06-19-2006
- Last Update Date
- 02-27-2026
- Code Navigator
An internist like Rajat Walia is a physician who has completed an internal medicine residency and is board-certified or board-eligible in an internist specialty. Internists are trained to care for adults of all ages for many different medical conditions. An internist typically monitors chronic physical conditions, identifies acute diseases, provides family planning, provides counseling about wellness and disease prevention, etc.
Location Map
Specialty - Primary Taxonomy
The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.
- Classification
Internal Medicine Pulmonary Disease
- Taxonomy Code
- 207RP1001X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- 31130
- License State
- AZ
- Taxonomy Description
- 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.
Secondary Taxonomies
The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.
| No. | Taxonomy Code | Type | Classification / Specialization |
License No. (State) |
|---|---|---|---|---|
| 1 | 207RC0200X | Allopathic & Osteopathic Physicians | Internal Medicine | 31130 (AZ) |
Insurance Plans Accepted
According to publicly available information the provider might be accepting the following health plans from these health insurance companies:
- AZ Blue ACA StandardHealth Silver with Health Choice - HMO
- AZ Blue AdvanceHealth Bronze Focus (4 Free PCP Visits) - HMO
- AZ Blue AdvanceHealth Bronze Neighborhood (4 Free PCP Visits) - HMO
- AZ Blue AdvanceHealth Gold Focus (4 Free PCP Visits) - HMO
- AZ Blue AdvanceHealth Gold Neighborhood (4 Free PCP Visits) - HMO
- AZ Blue AdvanceHealth Silver Focus (4 Free PCP Visits) - HMO
- AZ Blue AdvanceHealth Silver Neighborhood (4 Free PCP Visits) - HMO
- AZ Blue EverydayHealth Gold Focus (1 Free PCP Visit) - HMO
- AZ Blue EverydayHealth Gold Neighborhood (1 Free PCP Visit) - HMO
- AZ Blue EverydayHealth Prosano Gold ($0 Prosano Health Visits) - HMO
- AZ Blue EverydayHealth Prosano Silver ($0 Prosano Health Visits) - HMO
- AZ Blue EverydayHealth Silver Focus (1 Free PCP Visit) - HMO
- AZ Blue EverydayHealth Silver Neighborhood (1 Free PCP Visit) - HMO
- AZ Blue Portfolio Bronze HSA Focus - HMO
- AZ Blue Portfolio Bronze HSA Neighborhood - HMO
- AZ Blue StandardHealth Bronze Focus - HMO
- AZ Blue StandardHealth Bronze Neighborhood - HMO
- AZ Blue StandardHealth Gold Focus - HMO
- AZ Blue StandardHealth Gold Neighborhood - HMO
- AZ Blue StandardHealth Silver Focus - HMO
Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.
Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.
*Please verify directly with this provider to make sure your insurance plan is currently accepted.
Additional Identifiers
The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.
| Identifier | Type / Code | Identifier State | Identifier Issuer |
|---|---|---|---|
| 089961 | MEDICAID (05) | AZ |
Medicare Participation & PECOS Enrollment Status
Rajat Walia is registered with Medicare and accepts claims assignment, this means the provider accepts the approved amount for the cost of rendered services as full payment. Participating providers may not charge beneficiaries more than the approved amount for their services. Please keep in mind that beneficiaries still have to pay a coinsurance or copayment amount for a visit or service.
Rajat Walia is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.
What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.
Is the provider registered in PECOS? Yes
PECOS PAC ID: 2163408329
What is the PECOS Associate Control ID?
A PAC ID is a unique 10-digit number assigned to an individual or organization healthcare provider in PECOS. The PAC ID is used to link together all the provider information, like tax identification numbers and organizational names. A PAC ID can be connected to multiple Enrollment IDs if an individual or organization has enrolled in PECOS more than once.PECOS Enrollment ID: I20061211000171
What is the Provider Enrollment ID?
The Enrollment ID is a unique alphanumeric 15-digit code assigned to each new provider's PECOS enrollment application. The Enrollment ID is used to link together all the provider enrollment information like enrollment type, state, provider specialty, and reassignment of benefits.Accepts Medicare Assignment? Yes
What does it mean "accepts medicare assignment"?
When a provider accepts Medicare assignment, the provider agrees to be paid directly by Medicare and to accept the payment amount approved by Medicare. Additionally, the provider agrees to not bill patients for more than the Medicare deductible and coinsurance amounts.
A provider who doesn't accept assignment may charge you up to 15% over the Medicare-approved amount. This is known as the limiting charge. You may have to pay this amount, or it may be covered by another insurer.Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes
Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes
Eligible to Order or Refer a Home Health Agency (HHA): Yes
Eligible to Order or Refer Power Mobility Devices: Yes
Provider Referred Orders for Durable Medical Equipment, Devices & Supplies
The following list reflects the services, supplies or durable medical equipment ordered by this provider to a DME supplier on behalf of patients. The information below is derived from Medicare claims data and reflects the BETOS category, HCPCS code information and the number times each service was submitted under the Medicare fee-for-service program.
Durable Medical Equipment
DME-Oxygen and Supplies (DC000N)
Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing (HCPCS:E0431)
4 DME suppliers used 24 Medicare Claims 24 Services Paid
DME-Oxygen and Supplies (DC002N)
Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate (HCPCS:E1390)
5 DME suppliers used 37 Medicare Claims 37 Services Paid
DME-Oxygen and Supplies (DC002N)
Portable oxygen concentrator, rental (HCPCS:E1392)
1 DME suppliers used 12 Medicare Claims 12 Services Paid
Unknown
Treatment-Treatment - Miscellaneous (RX029N)
Tacrolimus, immediate release, oral, 1 mg (HCPCS:J7507)
6 DME suppliers used 39 Medicare Claims 3600 Services Paid
Treatment-Treatment - Miscellaneous (RX029N)
Prednisone, immediate release or delayed release, oral, 1 mg (HCPCS:J7512)
5 DME suppliers used 58 Medicare Claims 12000 Services Paid
Treatment-Treatment - Miscellaneous (RX029N)
Mycophenolate mofetil, oral, 250 mg (HCPCS:J7517)
5 DME suppliers used 18 Medicare Claims 2048 Services Paid
Treatment-Chemotherapy (RH012N)
Pharmacy supply fee for oral anti-cancer, oral anti-emetic or immunosuppressive drug(s); for the first prescription in a 30-day period (HCPCS:Q0511)
6 DME suppliers used 46 Medicare Claims 46 Services Paid
Treatment-Chemotherapy (RH012N)
Pharmacy supply fee for oral anti-cancer, oral anti-emetic or immunosuppressive drug(s); for a subsequent prescription in a 30-day period (HCPCS:Q0512)
6 DME suppliers used 75 Medicare Claims 79 Services Paid
Areas of Expertise
The following services and procedures, recently provided to Medicare patients, illustrate the range of care this provider offers. This list reflects the variety of services available to all patients visiting the practice and is based on 2022 Medicare dataset. In general, the more frequently a provider treats specific conditions or performs particular procedures, the more experienced they become in addressing similar patient needs. The provider has delivered many of the services listed below to Medicare patients. Please note that this list does not include services provided to patients who are not covered by Medicare.
Biopsy of lobe of lung using an endoscope, 1 lobe
Biopsy of lobe of lung using an endoscope, each additional lobe
Established patient office or other outpatient visit, 40-54 minutes
Follow-up hospital inpatient care per day, typically 35 minutes
Irrigation and suction of lung airways to obtain cells using an endoscope
Test for exercise-induced lung stress
Test for exercise-induced lung stress
Test to determine lung volumes using gas dilution or washout
Test to determine lung volumes using sensors
Test to examine how well the lungs exchange gases
Test to examine how well the lungs exchange gases
Test to measure expiratory airflow and volume
Test to measure expiratory airflow and volume
Test to measure expiratory airflow and volume changes before and after medication administration
Test to measure lung function at high altitude
Test to measure oxygen level in blood using ear or finger device multiple times
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.
This service was performed 11 times for 11 patientsA 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.
This service was performed 11 times for 11 patientsThis 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.
This service was performed 51 times for 45 patientsFollow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
This service was performed 22 times for 11 patientsThis 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.
This service was performed 17 times for 16 patientsAn 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.
This service was performed 273 times for 212 patientsAn 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.
This service was performed 102 times for 72 patientsThis 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.
This service was performed 33 times for 33 patientsThis 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.
This service was performed 124 times for 118 patientsThis 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.
This service was performed 395 times for 299 patientsThis 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.
This service was performed 57 times for 56 patientsThis 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.
This service was performed 381 times for 279 patientsThis 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.
This service was performed 1,611 times for 328 patientsThis 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.
This service was performed 94 times for 89 patientsA 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.
This service was performed 16 times for 16 patientsThis procedure involves a small device, called a pulse oximeter, which is placed on your finger or ear. It uses light to measure the oxygen in your blood. The test is painless and will be conducted multiple times to ensure accuracy.
This service was performed 17 times for 16 patientsPhysician Visit Costs
The typical physician office visit costs for Medicare beneficiaries in this area are: $31.92 for a new patient copayment and $24.5 for an established patient copayment.
The pricing information below displays the copayment minimum, maximum and average amount that patients under Medicare are charged when visiting this provider as a new or established patient. Please keep in mind that these prices are just for reference purposes, and the actual prices charged by the provider might be different.
For patients covered under private health plans the prices below are also useful as healthcare pricing for private insurance is usually established as a function of Medicare prices. Private insurance covered patients should check their individual plans to determine the exact pricing.
The prices below reflect the costs for new and established patients in the 85013 ZIP code area.
New Patients Visit Costs *
The most utilized procedure code for new patients office visits is 99204
- Average New Patient Price $127.71
- Minimum New Patient Price $55.44
- Maximum New Patient Price $168.6
- Average New Patient Copayment $31.92
- Minimum New Patient Copayment $13.86
- Maximum New Patient Copayment $42.15
Established Patients Visit Costs *
The most utilized procedure code for established patients office visits is 99214
- Average Established Patient Price $98
- Minimum Established Patient Price $17.72
- Maximum Established Patient Price $137.41
- Average Established Patient Copayment $24.5
- Minimum Established Patient Copayment $4.43
- Maximum Established Patient Copayment $34.35
* The physician office visit costs information is generated by statistical analysis of similar providers in the same geographical area. The pricing information above IS NOT the amount charged by this provider.
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NPI NPI Number Validation
How NPI Validation Works
The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.
To verify the NPI 1699710046, we treat the final digit (6) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 64. The final step is to find the difference between that total and the next multiple of ten (70 - 64 = 6).
Digit-by-digit view
Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.
Step 1: Double every other digit from the right
Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.
Step 2: Add all digits plus the NPI constant
Add the transformed values, the unchanged digits, and the constant 24.
Step 3: Find the amount needed to reach the next multiple of 10
The next multiple of ten after 64 is 70. The difference is the calculated check digit.
Other Providers at the Same Location
The following 20 providers are registered at the same or a nearby location.
PHOENIX, AZ 85013
PHOENIX, AZ 85013
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PHOENIX, AZ 85013
PHOENIX, AZ 85013
PHOENIX, AZ 85013
PHOENIX, AZ 85013
PHOENIX, AZ 85013
PHOENIX, AZ 85013
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1699710046, enumerated as an "individual" on June 19, 2006.
The provider is located at 500 W THOMAS RD STE 500 PHOENIX, AZ 85013 and the phone number is (602) 406-4000.
Internal Medicine with taxonomy code 207RP1001X and a focus in Pulmonary Disease.
The provider might be accepting Accepts: Blue Cross Blue Shield of Arizona, Medicare and. Please consult your insurance carrier or call the provider to verify.