WASEEM ISMAIL AZIZ MD
NPI 1023038270
Internal Medicine - Gastroenterology in Fairfax, VA

Active since July 20, 2006PECOS EnrolledAccepts Medicare Assignment
3700 JOSEPH SIEWICK DR, SUITE 401, FAIRFAX, VA 22033(703) 281-1023(703) 620-2331 Get Directions Write a Review

NPPES record last updated: January 13, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Sep 27, 2022, Jul 20, 2022, Mar 17, 2018 (3 updates tracked since 2018).

About Waseem Ismail Aziz Md NPPES

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

WASEEM ISMAIL AZIZ MD (NPI 1023038270) is an individual gastroenterology provider in Fairfax, Virginia, licensed in Virginia (0101238422) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, is affiliated with Inova Alexandria Hospital, and maintains 5 additional practice locations.

NPPES Registry Identity

NPI1023038270
Entity TypeIndividualMale
Primary Taxonomy207RG0100X
Provider Legal NameWASEEM ISMAIL AZIZCredential: MD
Location Address3700 JOSEPH SIEWICK DR, SUITE 401Fairfax, VA 22033-1744
Mailing Address714 Walker RdGreat Falls, VA 22066-2802 · (703) 609-6362
Fax(703) 620-2331
Sole ProprietorNo
Medical School CMSOtherGraduated 1987
Enumeration DateJuly 20, 2006
Last NPPES UpdateJanuary 13, 20253 updates tracked since enumeration
NPPES CertifiedJanuary 13, 2025
NPI 1023038270 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
Licenses Licensed in VA · 0101238422 Licensed in FL · ME169652
Definition

An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

Also ListedInternal Medicine · Transplant HepatologyTaxonomy 207RT0003X · License 0101238422 (VA)
3700 JOSEPH SIEWICK DR, Fairfax, VA 22033

Secondary Practice Locations 5

Location 144045 Riverside PkwyLeesburg, VA 20176-5101 · Phone (703) 858-6000 · Fax (703) 858-6900
Location 2500 Martha Jefferson DrCharlottesville, VA 22911-4668 · Phone (757) 654-5260
Location 31871 Evelyn Byrd AveHarrisonburg, VA 22801-3487 · Phone (540) 564-5800 · Fax (833) 552-3026
Location 42815 S Seacrest BlvdBoynton Beach, FL 33435-7969 · Phone (561) 737-7733
Location 52150 Pennsylvania Ave NWWashington, DC 20037-3201 · Phone (202) 741-2227

Other Identifiers 1

Medicaid010213479VA

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

Waseem Ismail Aziz 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 ID9436184116
PECOS Enrollment IDI20050930000617, I20150107001372
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 14

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.

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
216 services211 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
55 services49 patients
Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43235
This procedure, known as an upper endoscopy, involves inserting a thin, flexible tube with a camera down the throat to examine the esophagus, stomach, and upper small bowel. It helps diagnose conditions like ulcers or inflammation.
42 services42 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-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.
38 services33 patients
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43239
This procedure involves using a thin, flexible tube with a light and camera, known as an endoscope, to examine the esophagus, stomach, and upper part of the small intestine. Small tissue samples are taken for further examination to help diagnose various conditions.
34 services34 patients
Review by radiologist of image from tube placement into bile duct using an endoscope 74328
This procedure involves a specialist, called a radiologist, examining an image taken during a tube placement into your bile duct. The tube is inserted with the help of a tool called an endoscope. This allows the doctor to check for any issues or abnormalities in your bile duct.
27 services24 patients

Hospital Affiliations CMS Care Compare 5

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

Inova Alexandria Hospital

Acute Care Hospitals · Alexandria, VA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number490040
Location4320 Seminary RdAlexandria, VA 22304 · Alexandria City County
Emergency services Birthing friendly

Inova Loudoun Hospital

Acute Care Hospitals · Leesburg, VA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number490043
Location44045 Riverside ParkwayLeesburg, VA 20176 · Loudoun County
Emergency services Birthing friendly

Inova Fairfax Hospital

Acute Care Hospitals · Falls Church, VA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number490063
Location3300 Gallows RoadFalls Church, VA 22042 · Fairfax County
Emergency services Birthing friendly

Inova Fair Oaks Hospital

Acute Care Hospitals · Fairfax, VA
5/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number490101
Location3600 Joseph Siewick DriveFairfax, VA 22033 · Fairfax County
Birthing friendly

Inova Mount Vernon Hospital

Acute Care Hospitals · Alexandria, VA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number490122
Location2501 Parkers LaneAlexandria, VA 22306 · Fairfax County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 22033 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
$147.85 typical visit price
range $65.18 – $194.86
Typical copayment $36.96 (range $16.29 – $48.71)
Most-billed visit code 99204
Established Patient
$113.72 typical visit price
range $21.40 – $158.88
Typical copayment $28.43 (range $5.35 – $39.72)
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.

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.

Dentist (General Practice)
3700 JOSEPH SIEWICK DR, SUITE #307
FAIRFAX, VA 22033
Physician Assistant (Medical)
3700 JOSEPH SIEWICK DR, SUITE 308
FAIRFAX, VA 22033
Specialist
3700 JOSEPH SIEWICK DR, STE 304
FAIRFAX, VA 22033
Clinic/Center (Medical Specialty)
3700 JOSEPH SIEWICK DR, SUITE 401
FAIRFAX, VA 22033
Internal Medicine (Gastroenterology)
3700 JOSEPH SIEWICK DR, SUITE 308
FAIRFAX, VA 22033
Family Medicine
3700 JOSEPH SIEWICK DR, 303
FAIRFAX, VA 22033
Obstetrics & Gynecology
3700 JOSEPH SIEWICK DR
FAIRFAX, VA 22033
Urology
3700 JOSEPH SIEWICK DR, SUITE 206
FAIRFAX, VA 22033

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 Waseem Aziz's NPI number?

The NPI number for Waseem Aziz is 1023038270. It was assigned to this individual provider in the NPPES registry on July 20, 2006.

Where is Waseem Aziz located?

Waseem Aziz practices at 3700 Joseph Siewick Dr Suite 401, Fairfax, VA 22033. The listed phone number is (703) 281-1023.

What is Waseem Aziz's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Waseem Aziz enrolled in Medicare?

Yes. Waseem Aziz 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.

Is Waseem Aziz affiliated with any hospitals?

According to CMS data, Waseem Aziz is affiliated with Inova Alexandria Hospital, Inova Loudoun Hospital, Inova Fairfax Hospital, Inova Fair Oaks Hospital and Inova Mount Vernon Hospital.

When was this NPI record last updated?

The NPPES record for Waseem Aziz was last updated on January 13, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.